JP5423082B2 - Detachable body holding device and image forming apparatus - Google Patents

Description

  The present invention relates to a detachable body holding device and an image forming apparatus. In particular, the present invention relates to a holding device for a removable body such as a cartridge.

2. Description of the Related Art Conventionally, in image forming apparatuses such as copying machines and printers, the techniques described in the following Patent Documents 1 to 10 are conventionally known with regard to a configuration in which a consumable can be replaced as a detachable body in order to replace the consumable. . Here, the detachable body refers to an object configured to be detachable from the apparatus main body. For example, as a photoconductor unit in which a photoconductor, a charger, and a cleaning member can be integrally attached to and detached from the apparatus main body, a plurality of functional parts that function in the image forming apparatus can be integrated into a unit. In some cases, it may be configured such that a functional component can be detachably attached like a toner cartridge.
Japanese Patent Application Laid-Open No. 2000-275946 as Patent Document 1 describes a laser copying machine having a cradle (34) that is guided by a stay (44) of the apparatus main body and is movable back and forth. The toner bottle (33) is laid along the cradle (34) and mounted, and the cradle (34) is moved backward to mount the toner bottle (33).
In the technique described in Patent Document 1, a hopper (31) that engages with the toner discharge port (33a) of the toner bottle (33) is integrally formed at the front end of the cradle (34). An operator can operate the cradle (34) using a lever (35) installed at the front end of the cradle.

Japanese Patent Application Laid-Open No. 2003-66705 as Patent Document 2 describes a bottle holder (21) that holds a toner bottle (20) around a rotation center (Z) as a bottle projecting forward from the front surface of the copier body. A configuration is described in which the apparatus is rotatably supported between the installation position (A) and the toner supply position (B) accommodated in the main body.
Japanese Patent Application Laid-Open No. 11-143190 as Patent Document 3 describes an image forming apparatus in which a tray (3) can be moved in the front-rear direction to a predetermined position outside the image forming apparatus by a driving device (4). ing. In the technique described in Patent Document 3, a toner supply container (1) having a container body (10) having a rectangular cross section at the top and an isosceles triangle cross section at the bottom is provided with a receiving portion ( 3-b, 3-c, 3-d) mounted from above, and the toner supply container (1) is mounted by moving the tray (3) into the apparatus main body by the driving device (4). .

  In Japanese Patent Application Laid-Open No. 2003-114568 as Patent Document 4, in order to prevent the toner supply container from dropping, a convex portion (3c) protruding downward from the bottom surface of the toner supply container (1) is formed. A configuration is described in which a convex portion (3c) is fitted in a groove portion (4d) formed in the front-rear direction formed on the bottom surface of a box-shaped guide (2b) extending in the front-rear direction, and when the toner supply container (1) is taken out. After the toner replenishing container (1) is moved in the horizontal direction, the user is lifted upward to prevent the toner replenishing container (1) from being dropped due to excessive movement in the horizontal direction.

Japanese Patent Application Laid-Open No. 2003-259591 as Patent Document 5 discloses that a cylindrical developer supply container (1) is placed on a container cradle (400b) that can be pulled forward from the front surface of the image forming apparatus (100). A configuration in which the developer supply container (1) is replaceable is described.
Japanese Patent Application Laid-Open No. 2006-78627 as Patent Document 6 discloses a cylindrical developer supply container (1) placed on a developer supply container cradle (400b) that is slidable forward from the front surface of the apparatus main body (100). A technique is described in which the developer supply container (1) is replaced by attaching and detaching.

  Japanese Patent Application Laid-Open No. 10-213959 as a patent document 7 describes a position protruding forward from the front surface of an image forming apparatus with respect to a support shaft (64) provided in the image forming apparatus and extending in the direction of gravity. A frame (61) that can swing between positions accommodated in the apparatus and a developer container (10) that is attached to and detached from the frame (61) are described.

Japanese Patent No. 3952705 as Patent Document 8 and Japanese Patent Application Laid-Open No. 2006-215239 as Patent Document 9 include a fixed rail (211A) supported by the image forming apparatus (100) and extending forward and backward, and a fixed rail (211A). And an image forming apparatus having a container receiving portion (21) supported by a slide rail (211) constituted by a movable rail (211B) that is movable with respect to the first rail.
In the techniques described in Patent Documents 8 and 9, a cylindrical toner container (10) extending in the front-rear direction is used in a state where the container cradle (21) is pulled forward from the front surface of the image forming apparatus (100). After being attached to and detached from (21) from above, the container receiving portion (21) is slid to the back side, and the toner container (10) is attached to the image forming apparatus (100).

  Japanese Patent Application Laid-Open No. 2004-126407 as Patent Document 10 describes an exchange position (A) that allows the developer container (67) to be exchanged by protruding from the front surface of the printer main body (60), and an exchange position ( A) is moved between the supply position (B) where the developer in the developer container (67) can be supplied to the developing device (33) by being slid toward the inside of the main body by the motor (M3). A possible developer set (66) is described.

JP 2000-275946 A (“0035” to “0041”, FIG. 1) JP 2003-66705 A (“0026” to “0038”, “0044” to “0045”, FIG. 1) JP-A-11-143190 ("0030" to "0039", FIG. 7, FIG. 9, FIG. 10) JP 2003-114568 A (“0029” to “0033”, FIGS. 2 to 5) Japanese Patent Application Laid-Open No. 2003-259591 (“0059” to “0062”, “0090”, FIGS. 2 to 6 and FIG. 23) JP 2006-78627 A ("0022" to "0025", FIGS. 3 to 6) JP-A-10-213959 ("0037" to "0054", FIGS. 4 to 7) Japanese Patent No. 3952705 (“0035”, “0038”, “0049” to “0050”, FIG. 2, FIG. 7, FIG. 8) Japanese Patent Laying-Open No. 2006-215239 (“0014”, “0017”, “0036”, FIGS. 1 and 6) JP 2004-126407 A (“0037” to “0040”, “0045” to “0046” FIGS. 4, 11, and 12)

  An object of the present invention is to prevent rapid inclination of the detachable body when the detachable body is moved to an inclined state.

In order to solve the technical problem, the detachable body holding device of the invention according to claim 1 comprises:
A drawer body supported in a movable manner between a housing position housed inside the image forming apparatus main body and a drawer position pulled out of the image forming apparatus main body from the housing position;
A rotary holding body that is supported by the drawer body so as to be rotatable about a rotation axis, and is movably supported integrally with the drawer body, and holds a detachable body that is attached to and detached from the image forming apparatus main body; An insertable position where the drawer body is movable from the drawer position toward the accommodation position, and an inclined position where the drawer body is rotated downward with respect to the insertable position about the rotation axis and tilted downward. And the rotation holding body movable between,
A braking member that is disposed on a rotation shaft of the rotation holding body and suppresses a moving speed at which the rotation holding body rotates and moves to the inclined position, and when a rotation force that is greater than a preset rotation force is applied. The braking member constituted by an overload protection device that cuts off transmission of rotational force equal to or greater than the set rotational force;
The set rotational force set to a value smaller than the natural rotational force that rotates the rotating holder by gravity; and
It is provided with.

The invention according to claim 2 is the detachable body holding device according to claim 1 ,
A rotational force in a return rotational direction that is a rotational direction from the tilt position toward the insertable position is transmitted, and a rotational force in the tilt rotational direction that is a rotational direction from the insertable position toward the tilt position is the set rotation. The overload protection device configured by a transmission cutoff device that cuts off transmission of rotational force equal to or greater than the set rotational force when the force is greater than or equal to a force;
It is provided with.

In order to solve the technical problem, an image forming apparatus according to claim 3 is provided.
An image carrier,
A developing unit for developing the latent image on the surface of the image carrier into a visible image;
The detachable body constituted by a developer container containing a developer to be replenished to the developing device;
The detachable body holding device according to claim 1 or 2 ,
It is provided with.

According to invention of Claim 1 , 3 , compared with the structure which does not have a braking member, when moving an attachment / detachment body to the inclined state, rapid inclination of an attachment / detachment body can be prevented.
According to invention of Claim 1, 3 , it can be made to incline at the moving speed according to the setting rotational force of low speed compared with the moving speed to the inclination position by gravity.
According to the second aspect of the present invention, when moving from the tilt position to the insertable position, the load when lifting from the tilt position to the insertable position is higher than when the moving speed equal to or higher than the set rotational force is suppressed. Can be reduced.

FIG. 1 is an overall explanatory view of an image forming apparatus according to Embodiment 1 of the present invention. FIG. 2 is an overall explanatory view of the belt module according to the first embodiment of the present invention. 3A and 3B are perspective views for explaining a main part of the toner dispenser apparatus according to the first exemplary embodiment. FIG. 3A is a perspective view showing a state where the toner dispenser is moved to a storage position stored in the image forming apparatus. FIG. FIG. 3C is an explanatory diagram of a state in which the toner cartridge is rotated from the state of FIG. 3B. FIG. 4 is an explanatory perspective view of a main part of the toner dispenser device according to the first exemplary embodiment, and is an explanatory diagram illustrating a state in which the tilt holder is moved from the state illustrated in FIG. 3 to the pulled-out position. FIG. 5 is an explanatory perspective view of a main part of the toner dispenser device according to the first exemplary embodiment, and is an explanatory diagram illustrating a state in which the tilt holder is moved to the tilt position from the state illustrated in FIG. 4. FIG. 6 is an explanatory perspective view of a main part of the toner dispenser device according to the first exemplary embodiment. FIG. 6 is an explanatory view showing a state where the front end cover is moved from the state shown in FIG. FIG. 7 is an explanatory perspective view of a main part of the toner dispenser device according to the first exemplary embodiment, and is an explanatory view showing a state where the toner cartridge is taken out from the state shown in FIG. FIG. 8 is a main part explanatory view of the drawer body part of Example 1, FIG. 8A is a main part explanatory view seen from the direction of arrow VIII in FIG. 4, and FIG. 8B is a sectional view taken along line VIIIB-VIIIB in FIG. FIG. 9 is an explanatory view of a main part viewed from the direction of arrow IX in FIG. FIG. 10 is an explanatory diagram of the braking member of the first embodiment. 11 is an explanatory view of the main part of the tilt holder according to the first embodiment, FIG. 11A is an explanatory view of the main part of the front part of the tilt holder in a state where the tilt holder is moved to the insertable position of FIG. 4, and FIG. It is line sectional drawing. 12 is an explanatory diagram of a main part of the tilt holder according to the first embodiment, and is an explanatory diagram of the front part of the tilt holder in a state where the tilt holder is moved to the tilt position of FIG. FIG. 13 is an explanatory view of a main part of the support in a state where the guided rail is moved to the pulling position and the tilt holder is held in the insertable position. FIG. 14 is an explanatory view of a main part of the support in a state where the tilt holder is moved to the tilt position and the front end cover is moved to the open position from the state shown in FIG. FIG. 15 is an explanatory diagram of a main part of the front end portion of the tilt holder according to the first embodiment, and is a diagram illustrating a state in which the tilt holder is moved to an insertable position. FIG. 16 is an explanatory diagram of a main part of the front end portion of the tilt holder according to the first embodiment, and is a diagram illustrating a state in which the tilt holder is moved to the tilt position. FIG. 17 is an explanatory diagram of a main part of the front end portion of the tilt holder according to the first embodiment, and is an explanatory diagram showing a state in which the front end cover starts rotating from the state shown in FIG. 16 toward the front end open position. FIG. 18 is an explanatory diagram of a main part of the front end portion of the tilt holder according to the first embodiment, and is an explanatory diagram showing a state in which the front end cover is moved from the state shown in FIG. 17 to the front end open position. FIG. 19 is an explanatory diagram of the main parts of the tilt holder and the front end cover of Example 1, and is an explanatory diagram of a state where the toner cartridge corresponding to FIG. 6 is mounted. 20A and 20B are explanatory views of a main part in a state in which the front cover of the tilt holder according to the first embodiment is moved to the front end closed position, FIG. 20A is a perspective view, FIG. 20B is a cross-sectional view taken along the line XXB-XXB in FIG. It is XXC-XXC sectional view taken on the line of FIG. 20A. FIG. 21 is an explanatory diagram of the positional relationship between the handle lock and the front frame in the storage position shown in FIG. FIG. 22 is an explanatory diagram of the lower rotation restricting portion and the rotation restricting portion of the second embodiment, and corresponds to FIG. 16 of the first embodiment. FIG. 23 is an explanatory diagram of the rotational position adjusting member of the second embodiment, FIG. 23A is an explanatory diagram of the rotational position adjusting opening with the rotational position adjusting member removed, and FIG. 23B is a rotational position adjusting member for the shallow rotational position. FIG. 23C is an explanatory view of a rotational position adjusting member for a middle rotational position, and FIG. 23D is an explanatory view of a rotational position adjusting member for a deep rotational position. FIG. 24 is an explanatory diagram of a state in which the tilt holder of the third embodiment has moved to the accommodation position, and corresponds to FIG. 3 of the first embodiment. FIG. 25 is an explanatory diagram of a state in which the tilt holder according to the third embodiment is moved to the drawing position, and corresponds to FIG. 4 according to the first embodiment. FIG. 26 is an explanatory diagram of a state in which the tilt holder of the third embodiment has moved to the tilt position, and corresponds to FIG. 5 of the first embodiment.

Next, specific examples of embodiments of the present invention (hereinafter referred to as examples) will be described with reference to the drawings, but the present invention is not limited to the following examples.
In order to facilitate understanding of the following description, in the drawings, the front-rear direction is the X-axis direction, the left direction is the Y-axis direction, the up-down direction is the Z-axis direction, and arrows X, -X, Y, -Y, The direction indicated by Z and -Z or the indicated side is defined as the front side, the rear side, the right side, the left side, the upper side, the lower side, or the front side, the rear side, the right side, the left side, the upper side, and the lower side, respectively.
In the figure, “•” in “○” means an arrow heading from the back of the page to the front, and “×” in “○” is the front of the page. It means an arrow pointing from the back to the back.
In the following description using the drawings, illustrations other than members necessary for the description are omitted as appropriate for easy understanding.

FIG. 1 is an overall explanatory view of an image forming apparatus according to Embodiment 1 of the present invention.
In FIG. 1, an image forming apparatus U according to the first exemplary embodiment includes a user interface UI as an example of an apparatus operation unit, an image input apparatus U1 as an example of an image information input apparatus, a paper feeding apparatus U2, an image forming apparatus main body U3, and A sheet processing device U4 is provided.

The user interface UI includes a copy start key as an example of an image formation start button, a copy number setting key as an example of an image formation number setting button, an input button such as a numeric keypad as an example of a numeric input button, and a display UI1. doing.
The image input device U1 includes an automatic document feeder and an image scanner as an example of an image reading device. In FIG. 1, an image input apparatus U1 reads a document (not shown), converts it into image information, and inputs it to the image forming apparatus body U3.
In the paper feeding device U2, paper feeding trays TR1 to TR4 as an example of a plurality of paper feeding units are detachably supported. Each of the paper feed trays TR1 to TR4 contains a recording sheet S as an example of a final transfer body and a medium. The recording paper S is sent out from each of the paper feed trays TR1 to TR4, and the paper feed path SH1 and the like. Through the image forming apparatus main body U3.

In FIG. 1, an image forming apparatus main body U3 includes an image recording unit that records an image on a recording sheet S conveyed from the sheet feeding device U2, a toner dispenser device U3a as an example of a developer supply device, and a sheet conveyance path SH2. , A paper discharge path SH3, a paper reversal path SH4, a paper circulation path SH6, and the like.
The image forming apparatus main body U3 includes a control unit C, a laser drive circuit D as an example of a latent image writing device drive circuit controlled by the control unit C, and a power supply circuit E controlled by the control unit C. Etc. The laser drive circuit D previously receives laser drive signals corresponding to image information of G: green, O: orange, Y: yellow, M: magenta, C: cyan, and K: black input from the image input device U1. At a set time, so-called timing, the image is output to the latent image forming devices ROSg, ROSo, ROSi, ROSm, ROSc, and ROSK of each color.

Below the latent image forming devices ROSg to ROSk of the respective colors, image holding unit units UG, UO, UY, UM, UC, UK of each color, and developing devices GG, GO, GY of each color as an example of a developing device. GM, GC, and GK are detachably mounted.
The black image carrier unit UK includes a photosensitive drum Pk as an example of an image carrier, a charger CCk, and a cleaner CLk as an example of an image carrier cleaner. A developing roll R0 as an example of a developing member of the black developing device GK is disposed adjacent to the right side of the photosensitive drum Pk. The image holding units UG to UC of other colors are also provided with the photosensitive drums Pg, Po, Py, Pm, Pc, chargers CCg, CCo, CCy, CCm, CCc, cleaners CLg, CLo, CLy, CLm, CLc. have. Further, on the right side of each of the photosensitive drums Pg to Pc, a developing roll R0 as an example of a developing member of each color developing device GG to GC is disposed adjacently.

In Example 1, the K photosensitive drum Pk, which is frequently used and has a lot of surface wear, is configured to have a larger diameter than the photosensitive drums Pg to Pc of other colors, and is capable of high-speed rotation and has a long service life. Has been changed.
Visible image forming members (UG + GG), (UO + GO), (UY + GY), (UM + GM), (UC + GC), (UK + GK) are constituted by the image carrier units UY to UO and the developing units GY to GO. ing.

  In FIG. 1, the photosensitive drums Pg to Pk are uniformly charged by the chargers CCg to CCk, respectively, and then a laser beam Lg as an example of the latent image writing light output from the latent image forming devices ROSg to ROSK. , Lo, Ly, Lm, Lc, and Lk form an electrostatic latent image on the surface. The electrostatic latent images on the surfaces of the photosensitive drums Pg to Pk are developed by the developing units GG to GK, and images of G: green, O: orange, Y: yellow, M: magenta, C: cyan, K: black, The toner image is developed as an example of a visible image.

The toner images on the surfaces of the photosensitive drums Pg to Pk are primary transfer rolls T1g, T1o, T1y, T1m, which are examples of primary transfer members in the primary transfer regions Q3g, Q3o, Q3y, Q3m, Q3c, and Q3k. By T1c and T1k, the images are sequentially transferred onto an intermediate transfer belt B as an example of an intermediate transfer member, and a multicolor image, so-called color image, is formed on the intermediate transfer belt B. The color image formed on the intermediate transfer belt B is conveyed to the secondary transfer area Q4.
In the case of only black image data, only the black photosensitive drum Pk and the developing device GK are used, and only a black toner image is formed. In addition, when four-color printing of Y, M, C, and K, or two-color and three-color printing according to user settings, etc. are performed, the corresponding photosensitive drums Pg to Pk and developing units GG to GK is used.

After the primary transfer, residual toner on the surfaces of the photosensitive drums Pg to Pk is cleaned by the cleaners CLg to CLk for the photosensitive drums and recharged by the chargers CCg to CCk.
Toner cartridges Kg, Ko, Ky, Km, Kc as an example of a detachable body mounted on the toner dispenser device U3a according to the consumption of the developer in each of the developing units GG to GK and an example of a developer container. , Kk, the developer is conveyed and replenished.

FIG. 2 is an overall explanatory view of the belt module according to the first embodiment of the present invention.
1 and 2, below each photosensitive drum Pg to Pk, a belt module BM as an example of an intermediate transfer device is brought into contact with the lower surface of each of the photosensitive drums Pg to Pk and from the lower surface. It is supported so that it can be moved up and down between a lowered position separated downward.
The belt module BM has the intermediate transfer belt B. The intermediate transfer belt B is rotationally driven in the direction of the arrow Ya by a belt drive roll Rd as an example of an intermediate transfer body drive member that supports the intermediate transfer belt B from the back surface, and is driven by a tension roll Rt as an example of a tension applying member. It is stretched with tension. The intermediate transfer belt B includes a walking roll Rw as an example of a meandering prevention member for preventing meandering of the intermediate transfer belt B, a plurality of idler rolls Rf as an example of a driven member, and a secondary transfer counter member. The back side is supported by a backup roll T2a as an example.

  In the first exemplary embodiment, the intermediate transfer belt B is disposed on the upstream side of the G-color primary transfer roll T1g in the direction of the arrow Ya in a direction perpendicular to the direction of the arrow Ya and the photosensitive drum Pg. A first retracting roll R1 as an example of a contact / separation intermediate transfer member support member supported so as to be movable in a contact / separation direction, which is a direction of contact / separation, is disposed. Further, on the downstream side in the arrow Ya direction of each O-color primary transfer roll T1o and on the upstream side in the arrow Ya direction of each Y-color primary transfer roll T1y, the contact configured similarly to the first retract roll R1 is provided. A second retract roll R2 and a third retract roll R3, which are examples of the separating intermediate transfer member support member, are arranged side by side. Further, on the downstream side in the arrow Ya direction of each primary transfer roll T1c for C color and on the upstream side in the arrow Ya direction for each primary transfer roll T1k for K color, the contact configured similarly to the first retract roll R1 is provided. A fourth retract roll R4 as an example of a separating intermediate transfer member support member is disposed. Further, a fifth retract roll as an example of the intermediate transfer member support member for contact / separation configured similarly to the first retract roll R1 is provided downstream of the K primary transfer rolls T1k in the direction of the arrow Ya. R5 is arranged.

Further, on the downstream side in the direction of the arrow Ya of each of the primary transfer rolls T1g to T1k, a plate-shaped discharge sheet metal JB as an example of a discharge member that discharges the charge on the back surface of the intermediate transfer belt B is disposed. In addition, the said neutralization sheet metal JB of Example 1 is arrange | positioned in the non-contact with the said intermediate transfer roll B, for example, can be arrange | positioned in the position 2 mm away from the back surface of the said intermediate transfer roll B.
Belt support rolls Rd, Rt, Rw, Rf as an example of an intermediate transfer member support member that rotatably supports the intermediate transfer belt B from the back surface by the rolls Rd, Rt, Rw, Rf, T2a, R1 to R5. , T2a, R1 to R5.
Further, the belt module according to the first embodiment includes the intermediate transfer belt B, the belt support rolls Rd, Rt, Rw, Rf, T2a, R1 to R5, the primary transfer rolls T1g to T1k, the static elimination sheet metal JB, and the like. A BM is configured.

A secondary transfer unit Ut is disposed below the backup roll T2a. A secondary transfer roll T2b as an example of a secondary transfer member of the secondary transfer unit Ut is disposed so as to be separated from and contactable with the backup roll T2a with the intermediate transfer belt B interposed therebetween, and the secondary transfer roll T2b is A secondary transfer region Q4 is formed by the region in pressure contact with the intermediate transfer belt B. The backup roll T2a is in contact with a contact roll T2c as an example of a voltage application contact member, and each of the rolls T2a to T2c constitutes a secondary transfer device T2 as an example of a final transfer member. .
A secondary transfer voltage having the same polarity as the charging polarity of the toner is applied to the contact roll T2c from a power supply circuit controlled by the control unit C at a preset timing.

A sheet conveyance path SH2 is disposed below the belt module BM. The recording sheet S fed from the sheet feeding path SH1 of the sheet feeding device U2 is conveyed to the sheet conveying path SH2, and a toner image is transferred to the secondary transfer region Q4 by a registration roll Rr as an example of a sheet feeding timing adjusting member. At the same time, it is conveyed to the secondary transfer region Q4 through the medium guide member SGr and the pre-transfer medium guide member SG1.
The medium guide member SGr is fixedly supported by the image forming apparatus main body U3 together with the registration roll Rr.
The toner image on the intermediate transfer belt B is transferred to the recording paper S by the secondary transfer device T2 when passing through the secondary transfer region Q4. In the case of a full-color image, the toner images primarily transferred onto the surface of the intermediate transfer belt B are secondarily transferred onto the recording paper S all at once.

The intermediate transfer belt B after the secondary transfer is cleaned, that is, cleaned by a belt cleaner CLB as an example of an intermediate transfer body cleaner. The secondary transfer roll T2b and the belt cleaner CLB are supported so as to be separated from and in contact with the intermediate transfer belt B.
The belt module BM, the secondary transfer device T2, the belt cleaner CLB, and the like constitute a transfer device TS that transfers images on the surfaces of the photosensitive drums Py to Po to the recording paper S.

The recording sheet S on which the toner image is secondarily transferred is conveyed to the fixing device F through a post-transfer medium guide member SG2 and a sheet conveyance belt BH as an example of a medium medium member before fixing. The fixing device F has a heating roll Fh as an example of a heat fixing member and a pressure roll Fp as an example of a pressure fixing member, and is fixed by a region where the heating roll Fh and the pressure roll Fp are in pressure contact with each other. Region Q5 is formed.
The toner image on the recording paper S is heated and fixed by the fixing device F when passing through the fixing region Q5. A transport path switching member GT1 is provided on the downstream side of the fixing device F. The conveyance path switching member GT1 selectively selects the recording sheet S conveyed through the sheet conveyance path SH2 and heated and fixed in the fixing region Q5, either on the sheet discharge path SH3 or the sheet reversing path SH4 side of the sheet processing apparatus U4. Switch. The recording sheet S conveyed to the sheet discharge path SH3 is conveyed to the sheet conveyance path SH5 of the sheet processing apparatus U4.

  A curl correction device U4a is disposed in the middle of the sheet conveyance path SH5, and a switching gate G4 as an example of a conveyance path switching member is disposed in the sheet conveyance path SH5. The switching gate G4 causes the first curl correction member h1 or the second curl correction member h2 to move the recording sheet S conveyed from the sheet conveyance path SH3 of the image forming apparatus main body U3 according to the direction of curving, so-called curl. Transport to either side of The recording paper S conveyed to the first curl correction member h1 or the second curl correction member h2 is curled when passing. The recording sheet S with the curl corrected is in a so-called face-up state in which the image fixing surface of the sheet faces upward from a discharge roll Rh as an example of a discharge member to a discharge tray TH1 as an example of a discharge unit of the paper processing device U4. It is discharged at.

The recording sheet S transported to the sheet reversing path SH4 side of the image forming apparatus main body U3 by the transport path switching member GT1 pushes the transport direction regulating member constituted by an elastic thin film member, so-called mylar gate GT2. Passed and conveyed to the sheet reversing path SH4 of the image forming apparatus main body U3.
A sheet circulation path SH6 and a sheet reversing path SH7 are connected to the downstream end of the sheet reversing path SH4 of the image forming apparatus body U3, and a mylar gate GT3 is also disposed at the connecting portion. The recording sheet S conveyed to the sheet conveying path SH4 through the switching gate GT1 passes through the mylar gate GT3 and is conveyed to the sheet reversing path SH7 side of the sheet processing apparatus U4. When performing duplex printing, the recording paper S that has been transported through the paper reversing path SH4 passes through the Mylar gate GT3 as it is, is transported to the paper reversing path SH7, and then transported in the opposite direction. When switched back, the transport direction is regulated by the Mylar gate GT3, and the switched recording sheet S is transported to the sheet circulation path SH6. The recording sheet S conveyed to the sheet circulation path SH6 is retransmitted to the transfer area Q4 through the sheet feeding path SH1.

On the other hand, when the recording paper S conveyed on the paper reversing path SH4 is switched back after the trailing edge of the recording paper S passes through the Mylar gate GT2 and before passing through the Mylar gate GT3, the Mylar gate GT2 causes the recording paper S The transport direction is regulated, and the recording paper S is transported to the paper transport path SH5 with the front and back sides reversed. After the curling of the recording paper S with the front and back reversed is corrected by the curl correction member U4a, the image fixing surface of the recording paper S faces downward in the paper discharge tray TH1 of the paper processing device U4, so-called face down. It can be discharged in a state.
A sheet transport path SH is constituted by the elements indicated by the symbols SH1 to SH7. Further, the sheet conveying device SU is constituted by the elements indicated by the symbols SH, Ra, Rr, Rh, SGr, SG1, SG2, BH, GT1 to GT3.

(Toner Dispensing Device U3a)
In FIG. 1, the toner dispensing apparatus U3a according to the first exemplary embodiment includes cartridge holders KHg, KHo, KHy, KHm, KHc, and KHk in which toner cartridges Kg to Kk of G, O, Y, M, C, and K are mounted. A reserve tank RTg, RTo, RTy, RTm, RTc, RTk as an example of a developer storage container in which the developer from each of the cartridges Kg to Kk is temporarily stored and stirred. The developer stirred in RTg to RTk is transported by a transport member (not shown) according to the amount of developer consumed in the developing devices GG to GK.
Next, cartridge holders KHg to KHk as an example of the detachable body holding device of the first embodiment will be described. Since the cartridge holders KHg to KHk are similarly configured, the cartridge holder KHk for K color will be described. Detailed description of the other color cartridge holders KHg to KHc will be omitted.

3A and 3B are perspective views for explaining a main part of the toner dispenser apparatus according to the first exemplary embodiment. FIG. 3A is a perspective view showing a state where the toner dispenser is moved to a storage position stored in the image forming apparatus. FIG. FIG. 3C is an explanatory diagram of a state in which the toner cartridge is rotated from the state of FIG. 3B.
FIG. 4 is an explanatory perspective view of a main part of the toner dispenser device according to the first exemplary embodiment, and is an explanatory diagram illustrating a state in which the tilt holder is moved from the state illustrated in FIG. 3 to the pulled-out position.
FIG. 5 is an explanatory perspective view of a main part of the toner dispenser device according to the first exemplary embodiment, and is an explanatory diagram illustrating a state in which the tilt holder is moved to the tilt position from the state illustrated in FIG. 4.
FIG. 6 is an explanatory perspective view of a main part of the toner dispenser device according to the first exemplary embodiment. FIG. 6 is an explanatory view showing a state where the front end cover is moved from the state shown in FIG.
FIG. 7 is an explanatory perspective view of a main part of the toner dispenser device according to the first exemplary embodiment, and is an explanatory view showing a state where the toner cartridge is taken out from the state shown in FIG.
In addition, in FIG. 4, although the main body side shutter should have moved to the outflow port obstruction | occlusion position, in order to understand easily, it has illustrated in the state which moved to the outflow port open position.

  1 and 3 to 7, the K cartridge holder KHk is disposed at the front frame 1 as an example of a front end frame fixedly supported by the image forming apparatus main body U3, and at the rear end of the reserve tank RTk. And a holder base 2 as an example of a fixing member. 3 to 7, the front frame 1 is formed with a circular opening 1a through which the detachable toner cartridge Kk passes. 4-7, the holder base 2 has the plate-shaped rear end wall 2a arrange | positioned at the rear-end part, and the semi-cylindrical cylinder wall 2b extended ahead from the rear-end wall 2a.

The rear end wall 2a is formed with a hard key mounting groove 2c formed of an arc-shaped groove as an example of an erroneous mounting preventing portion on the main body side, and is attached and detached to protrude rearward from the rear end of the toner cartridge Kk. The hard key Kk8 as an example of the body-side erroneous mounting prevention unit can be fitted. Therefore, when the toner cartridges Kg to Kk containing the developer corresponding to the colors of the developing units Gg to Gk are mounted, the positions of the hard key mounting groove 2c and the hard key Kk8 are matched to each other. If they do not match, the position is set in advance so as not to shift and fit.
Further, a coupling 3 as an example of a drive transmission member to which the drive from the drive source 2d is transmitted is supported on the rear end wall 2a. The coupling 3 meshes with a coupling CP shown in FIG. 5 as an example of a driven transmission member at the rear end of the toner cartridge Kk to be mounted, and transmits rotation to a developer conveying member (not shown) in the toner cartridge Kk. .

The cylindrical wall 2b of the holder base 2 is formed in an arcuate inner peripheral surface 4 extending from the bottom to the left side and a right portion of the inner peripheral surface 4 and recessed in the front and rear direction. It has a shutter passage groove 6 as an example of an extending opening / closing member passage. Further, at the rear end portion of the inner peripheral surface 4, an inflow port forming portion 7 that is recessed from the arcuate inner peripheral surface 4 and convex from the shutter passage groove 6 and extends along the circumferential direction of the cylindrical wall 2 b is provided. The shutter pressing portion 8 as an example of the opening / closing member pressing portion is formed by the step portion at the boundary between the inlet forming portion 7 and the shutter passage groove 6.
In the inflow port forming portion 7, an inflow port 9 connected to the lower reserve tank RTk is formed. A main body side shutter guide 11 as an example of a shielding member guide portion formed in an arc shape along the inner peripheral surface 4 of the cylindrical wall 2b is formed on both front and rear sides of the inflow port 9. 11, an arcuate body-side shutter 12 along the inner peripheral surface of the cylindrical wall 2b is supported so as to be movable in the circumferential direction. The body-side shutter 12 is biased in a direction to close the inflow port 9 by a spring (not shown), and the inflow port 9 is closed, as shown in FIG. 3B where the inflow port 9 is opened. 3C is supported so as to be movable between the inlet closing position shown in FIG. 3C. 3B and 3C, a main body seal 12a as an example of a leakage preventing member is supported on the inflow port 9 side of the main body side shutter 12.

  3 and 4, the toner cartridge Kk mounted on the holder base 2 of the first embodiment has a cylindrical container body Kk1. 3B and 3C, an outlet portion Kk2 protruding outward in the radial direction of the container main body Kk1 is formed at the rear end of the container main body Kk1. The outflow port Kk2 is formed with an outflow port Kk3 from which the developer inside the container main body Kk1 flows out. As an example of a leakage preventing member, the outer end of the outflow port Kk2 surrounds the periphery of the outflow port Kk3. The cartridge seal Kk2a is supported. In addition, a cartridge shutter Kk4 as an example of an opening / closing member that is movable along the circumferential direction of the container main body Kk1 is attached to the outlet port Kk2. The depth of the recess of the shutter passage groove 6 of the holder base 2 is formed such that the cartridge shutter Kk4 in a state where the outlet Kk3 is blocked can pass. Further, the depth of the recess of the inflow port forming portion 7 is shallower than the thickness of the cartridge shutter Kk4 and deeper than the protruding amount of the outflow portion Kk2 from the container body Kk1.

Therefore, as shown in the outlet closing position shown in FIGS. 3C and 5 to 7, when the toner cartridge Kk <b> 1 is inserted, the cartridge shutter Kk <b> 4 can be mounted to the rear end through the shutter passage groove 6. When the position of the cartridge shutter Kk4 of the toner cartridge Kk is inserted at a rotational position that does not correspond to the shutter passage groove 6, the toner cartridge Kk interferes with the front end surface of the holder base 2 and cannot be inserted to the rear end.
When the user rotates the cartridge handle Kk6 as an example of the operation unit provided at the front end of the toner cartridge Kk with the toner cartridge Kk mounted to the rear end, the cartridge shutter Kk4 is hooked by the shutter pressing unit 8. The container body Kk1 and the outlet part Kk2 rotate, and the body-side shutter 12 moves by being pushed by the outlet part Kk2. Accordingly, the outlet Kk3 is opened, and the inlet 9 is also opened. As shown in the outlet opening position in FIG. 3B, the outlet Kk3 and the inlet 9 are connected, and the developer can be supplied.
In addition, a pressing rib Kk7 as an example of a pressing transmission portion protruding in the radial direction of the container main body Kk1 is provided at the front end portion of the toner cartridge Kk according to the first exemplary embodiment.

FIG. 8 is a main part explanatory view of the drawer body part of Example 1, FIG. 8A is a main part explanatory view seen from the direction of arrow VIII in FIG. 4, and FIG. 8B is a sectional view taken along line VIIIB-VIIIB in FIG.
FIG. 9 is an explanatory view of a main part viewed from the direction of arrow IX in FIG.
In FIG. 8, FIG. 9 and the subsequent drawings, for ease of explanation and understanding of the apparatus, the members arranged inside that are not visible from the outside are indicated by solid lines, and the members arranged outside are indicated by broken lines. It is indicated by a chain line or is not shown.
3 to 7, a pair of left and right guide rails 16 extending in the front-rear direction are fixedly supported on the left and right sides of the holder base 2 as an example of a drawer guide member. 8A and 9, the guide rail 16 has a rail body 17 as an example of a guide member body disposed on the lower side in the gravity direction. The rail body 17 includes a side wall portion 17a extending in the vertical direction and a lower guide portion 17b formed in a shape bent inward from the upper end of the side wall portion 17a. A lower roller guide surface 17c is formed on the upper surface of the lower guide portion 17b. An upper guide rail 18 as an example of an upper guide member extending upward is fixedly supported by screws 19 on the outer surface of the rail body 17. The upper guide rail 18 includes an outer cover portion 18a as an example of a closing portion that extends upward, and an upper guide portion 18b that is bent inward from the upper end of the outer cover portion 18a. An upper roller guide surface 18c is formed on the lower surface of the upper guide portion 18b.

  Inside the pair of left and right guide rails 16, a pair of left and right guided rails 21 and 22 as an example of a drawer body are supported so as to be movable in the front-rear direction. 3, FIG. 8A and FIG. 9, the guided rails 21 and 22 are formed in the shape of the drawer body 21a, 22a extending in the vertical direction and bent outward from the upper and lower ends of the drawer body 21a, 22a. It has upper guided portions 21b and 22b and lower guided portions 21c and 22c. The upper guided portions 21b and 22b are arranged such that the lower surfaces thereof are opposed to the upper surfaces of the upper guide portions 18b, and the guided rails 21 and 22 are movable in the forward direction that is the pull-out direction and the rear direction that is the push-in direction. It is supported.

  A roller 23 as an example of a pair of front and rear guided members is rotatably supported at the rear part of the drawer body main bodies 21a and 22a. The roller 23 includes a lower roller guide surface 17c on the guide rail 16 and an upper side. It arrange | positions in the state pinched | interposed into the roller guide surface 18c. Accordingly, when the guided rails 21 and 22 move, the rollers 23 rotate on the roller guide surfaces 17c and 18c, so that the frictional resistance and the like are small and weak compared to the case where the rollers 23 are not provided. It can move smoothly in the front-rear direction with force.

  In FIG. 3, a stopper 24 as an example of a drawer stop portion that protrudes toward the side wall portion 17a of the outer guide rail 16 is formed at the rear part of the drawer body bodies 21a and 22a. In FIG. 3, only the stopper 24 of the left guided rail 21 is shown for the sake of illustration. In FIG. 8B, the stopper 24 is disposed so as to be able to contact and be separated from an inner end of the screw 19 as an example of a pulling stop portion that is fixed and penetrates the rail body 17 and the upper guide rail 18. ing. Therefore, when the guided rails 21 and 22 are pulled forward and pulled to the pulling position shown in FIG. 4, the stopper 24 and the screw 19 come into contact with each other, and the guided rails 21 and 22 further forward. Movement is restricted. Therefore, the guided rails 21 and 22 according to the first embodiment are supported so as to be movable between the housing position illustrated in FIG. 3 and the drawer position illustrated in FIG. 4.

8 and 9, a through hole 26 penetrating in the left-right direction is formed at the front end portion of the drawer body 22a of the right guided rail 22.
A link 27 as an example of an interlocking member extending in the front-rear direction is supported on the right guided rail 22 so as to be rotatable about a link rotation center 27 a along the outer side surface behind the through hole 26. At the rear end of the link 27, a stopped portion 27b is formed that is bent into a J-shape that can contact and be separated from the erroneous insertion stop portion 16a at the front end of the right guide rail 16. Therefore, the link 27 has a stop portion separation position shown in FIG. 8 in which the stopped portion 27b is separated from the erroneous insertion stop portion 16a and the guided rail 22 is movable between the storage position and the pulling position. The portion 27b contacts the erroneous insertion stop portion 16a and the guided rail 22 rotates around the link rotation center 27a between the guide portion 22 and the stop portion contact position shown in FIG. Supported as possible.
At the front end of the link 27, a long hole-like connecting hole 27c is formed corresponding to the through hole 26 and extending in the front-rear direction.

FIG. 10 is an explanatory diagram of the braking member of the first embodiment.
In FIG. 10, the holder cover is not shown for easy understanding of the holder frame.
3 to 9, at the front end portions of the guided rails 21 and 22, an inclined holder 31 as an example of a holding body and an example of a rotating holding body is rotatable about holder rotation shafts 32 and 33. It is supported. The tilt holder 31 has a holder frame 36 as an example of a frame. 10, the holder frame 36 includes a plate-like holder frame bottom wall 36a extending along the axial direction of the toner cartridge Kk, a holder frame left side wall 36b extending upward from the left and right ends of the holder frame bottom wall 36a, and the holder frame. Right side wall 36c. The holder rotating shafts 32 and 33 are connected to rear end portions of the holder frame left side wall 36b and the holder frame right side wall 36c.

8 and 9, a link connecting pin 36d as an example of a connecting body extending rightward is supported on the holder frame right side wall 36c at a position separated rearward from the right holder rotation shaft 33. The link connecting pin 36 d passes through the through hole 26 of the guided rail 22 and is connected to the connecting hole 27 c of the link 27. The connection hole 27c of the first embodiment is formed in a long hole shape, and the link connection pin 36d is connected so as to be movable along the connection hole 27c. As shown in FIGS. 8 and 9, the link connecting pin 36 d is arranged at a position away from the holder rotating shaft 33 in the vicinity.
Therefore, when the tilt holder 31 rotates about the holder rotation shafts 32 and 33, the link 27 connected by the link connecting pin 36d is interlocked, and the stop portion separation position shown in FIG. 8 and the stop portion contact shown in FIG. Rotate and move between positions.

  In FIG. 10, a one-way hinge 38, which is an example of a braking member and an example of an overload protection device, is incorporated in the left holder rotating shaft 32. The one-way hinge 38 functions as an overload protection device, a so-called torque limiter, that interrupts transmission of rotational force when a rotational force greater than a preset rotational force is applied, and transmits only one-way rotation and the other. This is a commercially available device having a one-way rotation shut-off device that rotates idly with respect to rotation in a direction, that is, a so-called one-way clutch function. The one-way hinge 38 according to the first embodiment transmits a rotational force that is greater than or equal to the set rotational force when the rotational force that acts in a specific rotational direction around the holder rotational shaft 32 is greater than or equal to a preset rotational force. When a rotational force in the direction opposite to the specific rotational direction is applied, the rotational force is transmitted without interrupting the transmission of the rotational force. That is, the transmission of the rotational force is cut off when the rotational force in the inclined rotational direction, which is the rotational direction from the insertable position shown in FIG. 4 toward the inclined position as an example of the attaching / detaching position shown in FIG. Thus, the moving speed of the rotational movement to the inclined position is suppressed, and the rotational force in the return rotational direction, which is the rotational direction from the inclined position to the insertable position, is transmitted. And in Example 1, the said setting rotational force is set to the value smaller than the natural rotational force which rotates the inclination holder 31 which acts by gravity.

11 is an explanatory view of the main part of the tilt holder according to the first embodiment, FIG. 11A is an explanatory view of the main part of the front part of the tilt holder in a state where it is moved to the insertable position in FIG. 4, and FIG. 11B is XIB-XIB in FIG. It is line sectional drawing.
12 is an explanatory diagram of a main part of the tilt holder according to the first embodiment, and is an explanatory diagram of the front part of the tilt holder in a state where the tilt holder is moved to the tilt position of FIG.
11 and 12, a pair of left and right cut and raised portions 39 are formed on the holder frame bottom wall 36a at the front portion of the holder frame 36. For the sake of illustration, only the right cut and raised portion 39 is shown in FIGS.

11 and 12, the holder frame side walls 36b and 36c are formed with pin passage openings 41 as an example of hook passage openings penetrating in the left-right direction at positions facing the cut and raised portions 39. A pin 42 as an example of a hanging member that passes through the pin passage opening 41 and protrudes outward from the holder frame side walls 36b and 36c is supported by the cut and raised portion 39 so as to be movable in the left-right direction.
In FIG. 11B, the pin 42 has a supported portion 42 a that is supported so as to be movable in the left-right direction while penetrating through the support hole 39 a of the cut and raised portion 39. A pin main body 42b that penetrates the pin passage opening 41 and has a larger diameter than the non-supporting portion 42a is integrally formed outside the supported portion 42a. A disc-shaped spring support portion 42c having a larger diameter than the pin main body 42b is integrally formed at the outer end portion of the pin main body 42b. The spring support portion 42c is formed with a protruding hook portion 42d that protrudes outward from the spring support portion 42c.

11 and 12, a pin urging spring 43 as an example of an urging member that urges the spring support portion 42c outward is mounted between the cut and raised portion 39 and the spring support portion 42c. ing.
Further, a pair of left and right support connection studs 44 extending outward from the holder frame side walls 36b and 36c are supported as an example of a rotation restricting portion in front of the cut and raised portions 39 of the holder frame side walls 36b and 36c. Has been.

FIG. 13 is an explanatory view of a main part of the support in a state where the guided rail is moved to the pulling position and the tilt holder is held in the insertable position.
FIG. 14 is an explanatory view of a main part of the support in a state where the tilt holder is moved to the tilt position and the front end cover is moved to the open position from the state shown in FIG.
8 to 14, a plate-like left side support 46 and a right side support 47 extending in the front-rear direction are disposed outside the holder frame side walls 36b, 36c of the holder frame 36 as an example of an auxiliary rotating body. . The rear ends of the supports 46 and 47 can be rotated to the guided rails 21 and 22 by a support rotating shaft 48 as an example of an auxiliary rotating shaft disposed at a position separated from the front of the holder rotating shafts 32 and 33. It is supported. As shown in FIGS. 8 to 10, the support rotation shaft 48 of the first embodiment is disposed at a position away from the holder rotation shafts 32, 33 in the vicinity of the front side, that is, close to it.

  8 to 14, an example of a hooked portion corresponding to the hooking portion 42 d in a state where the tilt holder 31 is moved to the insertable position shown in FIG. A latch hole 51 is formed. That is, when the tilt holder 31 is moved to the insertable position shown in FIG. 13, the latch hole 51 is engaged with the latch portion 51 d by the elastic force of the pin urging spring 43 as shown in FIG. 11B. Held in a closed state, that is, in a fitted state. On the other hand, in the state where the tilt holder 31 is moved to the tilt position shown in FIG. 14, the holder rotation shafts 32 and 33 of the holder frame 36 and the support rotation shaft 48 are displaced, and the position of the hook portion 42d and the position of the latch hole 51 Therefore, the hook portion 42d moves inward against the elastic force of the pin urging spring 43, and is separated from the latch hole 51, that is, in a detached state. ing.

  11 to 14, inclined stop grooves 52 are formed in front portions of the supports 46 and 47 so as to correspond to the support connecting studs 44. 11 and 13, the tilt stop groove 52 includes a guide groove portion 53 extending along the supports 46 and 47 and a rotation restricting groove portion 54 extending upward from the front end of the guide groove portion 53. Is formed by a substantially L-shaped groove having a width movable along the groove. 11 to 14, at the rear end of the guide groove 53, the support connecting stud 44 is brought into contact with the support connecting stud 44 at the insertable position shown in FIG. 13, and the rotation of the tilt holder 31 upward from the insertable position is restricted. An upper rotation lock surface 53a is formed as an example of the upper rotation restricting portion.

Further, at the front end of the guide groove portion 53, as an example of a lower rotation restricting portion that contacts the support connecting stud 44 at the inclined position shown in FIG. 14 and restricts the rotation of the inclined holder 31 below the inclined position. A lower rotation lock surface 53b is formed. That is, the rotation position of the tilt holder 31 where the support connection stud 44 and the lower rotation lock surface 53b contact is set to the tilt position, and the contact between the support connection stud 44 and the lower rotation lock surface 53b causes the tilt holder 31 to move to the tilt position. Retained.
Furthermore, a rotation lock surface 54a as an example of an open rotation restriction portion is configured by the inner peripheral surface of the rotation restriction groove portion 54 that is located at a position away from the lower rotation lock surface 53b.

FIG. 15 is an explanatory diagram of a main part of the front end portion of the tilt holder according to the first embodiment, and is a diagram illustrating a state in which the tilt holder is moved to an insertable position.
FIG. 16 is an explanatory diagram of a main part of the front end portion of the tilt holder according to the first embodiment, and is a diagram illustrating a state in which the tilt holder is moved to the tilt position.
FIG. 17 is an explanatory diagram of a main part of the front end portion of the tilt holder according to the first embodiment, and is an explanatory diagram showing a state in which the front end cover starts rotating from the state shown in FIG. 16 toward the front end open position.
FIG. 18 is an explanatory diagram of a main part of the front end portion of the tilt holder according to the first embodiment, and is an explanatory diagram showing a state in which the front end cover is moved from the state shown in FIG. 17 to the front end open position.
13 to 18, a lock opening 56 that penetrates the supports 46 and 47 in the left-right direction is formed at the front ends of the supports 46 and 47 as an example of the rotation interlocked portion.

  In FIG. 15, the lock opening 56 is formed continuously from a cover stud guide groove 56a as an example of a guide portion that protrudes downward in a convex arc from the rear end side, and a front end portion of the cover stud guide groove 56a. The support lock releasing portion 56b as an example of the rotation restriction releasing portion having an inner surface extending downward in the direction of gravity after being inclined downward as it goes to, and the support lock releasing portion formed integrally with the support lock releasing portion 56b A cover lock portion 56c as an example of an opening / closing movement restricting portion that is recessed downward with respect to the lower surface of 56b.

FIG. 19 is an explanatory diagram of the main parts of the tilt holder and the front end cover of Example 1, and is an explanatory diagram of a state where the toner cartridge corresponding to FIG. 6 is mounted.
7 and 11 to 14, a holder cover 61 as an example of a holding body covering member is fixedly supported on the holder frame 36. The holder cover 61 has an upper cover 62 as an example of an upper covering portion disposed on the front side and the left and right sides of the bottom wall 36 a of the holder frame 36. The upper cover 62 has a cartridge holding surface 62a as an example of a detachable body holding surface which is a semi-cylindrical upper surface. 12 and 19, the front end of the upper cover 62 is formed with a rib contact portion 62b as an example of a pressed transmission portion that can contact the pressing rib Kk7.

  In FIG. 19, a front end wall 63 is integrally formed at the front end of the upper cover 62. In FIG. 12, a fan-shaped holder-side handle rotation port 63a, which is an example of an attaching / detaching body position restricting unit and an example of an operation unit passage port, is formed in the central portion of the front end wall 63 in a cut shape. . The holder-side handle rotation port 63a has a handle passage port 63b through which the handle Kk6 of the toner cartridge Kk passes when the toner cartridge Kk is attached / detached, and a holder-side attachment / detachment restriction extending downward at the right end of the handle passage port 63b. A surface 63c is formed, and a holder-side rotation restricting surface 63d that is inclined leftward as it goes downward is formed at the left end of the handle passage port 63b.

A left cover 64 that covers the left side wall 36 b and the left side support 46 is formed integrally with the upper cover 62 at the upper left edge of the upper cover 62. In the rear end portion of the left cover 64, the left side support 46 and the one-way hinge 38 are prevented from being exposed to the outside, and the gap between the left side wall 36b and the left guided rail 21 is filled. A rear end protection portion 64a is formed that is wider in the left-right direction than the center portion.
A right cover 66 that covers the right side wall 36 c and the outside of the right support 47 is formed integrally with the upper cover 62 at the upper right end edge of the upper cover 62.
The holder frame 36 and the holder cover 61 constitute a holding body main body 36 + 61 that holds the toner cartridge Kk.

20A and 20B are explanatory views of a main part in a state in which the front cover of the tilt holder of the first embodiment is moved to the front end closed position, FIG. 20A is a perspective view, FIG. 20B is a cross-sectional view taken along the line XXB-XXB in FIG. It is XXC-XXC sectional view taken on the line of FIG. 20A.
3 to 7 and 11 to 20, a front cover 71 as an example of a front end opening / closing member is supported on the front end portion of the holder cover 61. 15 to 20, the front cover 71 includes a semi-cylindrical front cover cylinder wall 72, and a front cover left wall extending along the left cover 64 and the right cover 66 from the left and right ends of the front cover cylinder wall 72. 73 and a front cover right wall 74, and a front cover front wall 76 formed at the front end of the front cover cylinder wall 72 corresponding to the front end wall 63.

The front cover left wall 73 and the front cover right wall 74 have a cover rotation shaft 77 that extends inward in the left-right direction and is rotatably supported by the left cover 64 and the right cover 66. Therefore, the front cover 71 according to the first embodiment has the front end closed position shown in FIGS. 6, 7, 11, 13, 15, 16, and 20 around the cover rotation shaft 77, and FIGS. 12, 14, 18, and 19 are supported so as to be rotatable between the front end opened positions.
Further, the front cover left wall 73 and the front cover right wall 74 are located at positions separated from the front lower side of the cover rotation shaft 77 at the front end closed position shown in FIGS. At a position corresponding to the opening 56, a lock stud 78 as an example of a rotation interlocking portion protruding inward in the left-right direction is formed. The lock stud 78 is fitted in the lock opening 56 and is connected so as to be movable in the lock opening 56 when the front cover 71 is rotated or when the supports 46 and 47 are rotated.

  In FIG. 20, a cover-side handle rotation port 76a, which is an example of a detachable body position restricting unit and an example of an operation unit passage port, is formed in a fan-shaped shape at the center of the front cover front wall 76. ing. In the front end closed position in FIG. 20, the cover-side handle rotation port 76a has a narrow portion 76b formed facing the handle passage port 63b and having a width corresponding to the cartridge handle Kk6, and the left end of the narrow portion 76b. A cover-side attachment / detachment restricting surface 76c extending upward from the right side, and a cover-side rotation restricting surface 76d that inclines rightward from the right end of the narrow portion 76b.

Accordingly, in the toner cartridge Kk of Example 1, the cartridge handle Kk6 rotates from the attachment / detachment position shown in FIG. 20 where the cartridge handle Kk6 contacts the attachment / detachment restriction surfaces 63c, 76c and contacts the rotation restriction surfaces 63d, 76d. Is supported in a rotatable range between the replenishment position shown in FIG.
Further, the front end wall 63 of the holder cover 61 and the front wall 76 of the front cover 71 constitute a drawer restricting member 63 + 76 that prevents the toner cartridge Kk from moving forward by preventing the toner cartridge Kk from moving forward when the tilt holder 31 is tilted. ing.

  20A and 20B, in the state where the front cover 71 has moved to the front end closed position shown in FIG. 20, a first guide groove as an example of a first guide groove extending in the front-rear direction is formed in the upper end portion of the front cover cylinder wall 72. A slit 72a is formed. 20A and 20C, the front cover cylinder wall 72 includes a second guide groove and a second guide groove as examples of the third guide groove at positions separated from the left and right sides of the first slit 72a along the circumferential direction. A slit 72b and a third slit 72c are formed.

  In FIG. 20, a handle lock 81 as an example of a rotation stop member is supported on the upper end portion of the cover cylinder wall 72. The handle lock 81 has an arcuate plate 82 extending along the outer peripheral surface of the front cover cylinder wall 72. A lock portion 83 as an example of a rotation stop portion extending downward is integrally formed at the front end of the arc-shaped plate 82. The lock portion 83 has a lower end that has entered the cover side handle rotation port 76a, and a position where the cartridge handle Kk6 moved to the attachment / detachment position shown in FIG. Is arranged.

The arcuate plate 82 has guided portions 83 and 84 that fit into the slits 72a to 72c and have shorter lengths in the front-rear direction than the slits 72a to 72c at positions corresponding to the slits 72a to 72c of the front cover cylinder wall 72. , 85 are formed. A protrusion 83a that protrudes toward the front cover front wall 76 is formed at the lower end of the first guided portion 83 that fits into the first slit 72a. A lock spring 87 as an example of a biasing member is attached. Retaining portions 84a and 85a extending toward the front cover front wall 76 are formed at the lower ends of the second guided portion 84 and the third guided portion 85 that fit into the second slit 72b and the third slit 72c.
Therefore, the handle lock 81 is supported so as to be movable in the front-rear direction along the slits 72a to 72c.

FIG. 21 is an explanatory diagram of the positional relationship between the handle lock and the front frame in the storage position shown in FIG.
In FIG. 20, a contacted portion 88 as an example of a restriction releasing portion protruding upward is formed on the upper surface of the arc-shaped plate 82. In FIG. 21, the contacted portion 88 is formed on a handle lock releasing portion 1b as an example of a contact portion formed by the front end surface of the front frame 1 at the edge of the opening 1a in a state where the tilt holder 31 is moved to the accommodation position. It is configured at a position where contact is possible.
Therefore, in the handle lock 81 of the first embodiment, the contacted portion 88 is separated from the front end surface of the front frame 1 in a state where the tilt holder 31 is pulled forward from the housing position, and the elastic force of the lock spring 87 The guide parts 83 to 85 are held at a lock position as an example of a rotation restriction position that contacts the rear ends of the slits 72a to 72c. In this state, the lock portion 83 moves rearward, and the cartridge handle Kk6 of the held toner cartridge Kk is sandwiched between the lock portion 83 and the cover-side attachment / detachment regulating surface 76c, and is held in a state where rotation is restricted. ing. In FIG. 21, in a state where the tilt holder 31 is moved to the accommodation position, the contacted portion 88 comes into contact with the front end surface of the front frame 1, and the handle lock 81 is slits 72a to 72c against the elastic force of the lock spring 87. And move to the rotation permission position moved forward. At the rotation permission position, the lock portion 83 is separated forward from the front end of the cartridge handle Kk6, and the toner cartridge Kk can be rotated by rotating the cartridge handle Kk6.

(Operation of Example 1)
In the image forming apparatus U of Embodiment 1 of the present invention having the above-described configuration, when an image forming operation, so-called job, is executed and the developer is consumed in each of the developing devices GG to GK, the consumption amount is reduced. Accordingly, the toner dispensing device U3a is operated to supply the developer from each of the toner cartridges Kg to Kk. When the developer in the toner cartridges Kg to Kk becomes empty, the toner cartridges Kg to Kk are replaced.

(Explanation for removing the toner cartridge)
In FIG. 3, when the emptied toner cartridge Kk is replaced, the cartridge handle Kk6 of the toner cartridge Kk is operated in the accommodation position shown in FIG. 3, and the flow shown in FIG. 3C from the outlet opening position shown in FIG. 3B. The toner cartridge Kk is rotated to the outlet closing position. As the toner cartridge Kk rotates, the outlet Kk3 and the inlet 9 are closed by the cartridge shutter Kk4 and the main body shutter 12.

  When the toner cartridge Kk rotates to the outlet closing position, the outlet Kk2 moves to the shutter passage groove 6 so that the toner cartridge Kk, the guide rails 21 and 22, and the inclined holder 31 can be pulled forward. When the cartridge handle Kk6 of the toner cartridge Kk is operated and pulled forward from the storage position, as shown in FIG. 20, the handle lock 81 moves to the rotation restricting position by the elastic force of the lock spring 87, and the cartridge handle of the toner cartridge Kk. Kk6 is held in a non-rotatable state. Therefore, rotation of the toner cartridge Kk during the pulling out operation is reduced, and operability is improved.

3 and 4, the toner cartridge Kk pulled forward from the storage position shown in FIG. 3 reaches the drawing position shown in FIG. 4 where the stopper 24 of the guided rails 21 and 22 contacts the screw 19 of the guide rail 16. It can be pulled out. In the pulled-out position, as shown in FIG. 11, the hook portion 42d is fitted in the latch hole 51 of the supports 46 and 47, and the inclined holder 31 is held in the insertable position shown in FIGS. It has become.
13 and 15, the lock stud 78 of the front cover 71 is in a state of being fitted to the cover lock portion 56 c of the lock opening 56 at the drawer position. Therefore, in the insertable position shown in FIGS. 4, 11, and 13, the front cover 71 is held at the front end closed position shown in FIG. 13 and cannot rotate. Therefore, it is prevented that the front cover 71 is erroneously moved to the front end open position and opened at the insertable position. Therefore, an unexpected accident such as the tilt holder 31 rotating while the front cover 71 is rotatable and the toner cartridge Kk sliding forward from the tilt holder 31 is prevented.

When the user lowers the cartridge handle Kk6 at the front end of the toner cartridge Kk held at the insertable position, the hook 42d comes out of the latch hole 51 against the elastic force of the pin urging spring 43 and moves downward. Start moving toward the tilt position.
At this time, in the inclined holder 31 of the first embodiment, the one-way hinge 38 is incorporated in the holder rotation shaft 32, and only a rotational force smaller than the natural rotational force is transmitted. Therefore, when the one-way hinge 38 is not incorporated, the rotation speed when rotating toward the downward inclined position by the weight of the toner cartridge Kk, the inclination holder 31 or the like becomes too fast, and the inclination rotates at a rapid speed. The holder 31 may collide and the article may be damaged or the user may be injured, or an unexpected accident such as the toner cartridge Kk popping out due to rapid rotation may occur. The rotation speed is reduced by the hinge 38, and the occurrence of an accident or the like is reduced.

  When the inclined holder 31 rotates toward the inclined position, the supports 46 and 47 connected by the support connecting stud 44 rotate around the support rotating shaft 48 disposed at a position away from the holder rotating shaft 32. . When the tilt holder 31 and the supports 46 and 47 rotate, as shown in FIGS. 13, 15 and 16, the difference between the rotation trajectories of the tilt holder 31 and the supports 46 and 47 whose positions of the rotating shafts 32 and 48 are shifted. Accordingly, the support connection stud 44 relatively moves along the guide groove portion 53 of the tilt stop groove 52. Then, as shown in FIG. 16, when the support connecting stud 44 comes into contact with the lower rotation lock surface 53b of the front end of the guide groove 53, the rotation of the tilt holder 31 and the supports 46 and 47 is restricted, and further downward Tilt is regulated. That is, the movement of the tilt holder 31 to the tilt position shown in FIGS. 5 and 16 is completed, and the supports 46 and 47 move to the lower rotation position.

In the front cover 71 that moves integrally with the tilt holder 31 during the rotation of the tilt holder 31, the lock stud 78 is relative to the lock opening 56 at the front end of the supports 46 and 47 that have different rotation trajectories from the tilt holder 31. It moves to the state which contacted the support lock release part 56b shown in FIG. 16 from the state fitted to the cover lock part 56c shown in FIG. Therefore, when the tilt holder 31 moves to the tilt position shown in FIG. 16, the front cover 71 is in a state of being rotatable around the cover rotation shaft 77.
8 and 9, as the tilt holder 31 rotates, the link 27 connected by the right link connecting pin 36d rotates in conjunction with the stop portion separation position shown in FIG. Move to the stop contact position shown. Therefore, the stopped portion 27b comes into contact with the erroneous insertion stopping portion 16a, and movement of the guided rails 21 and 22 toward the accommodation position is restricted. Accordingly, it is possible to reduce the erroneous movement of the guided rails 21 and 22 and the tilt holder 31 toward the storage position while the tilt holder 31 is tilted or the toner cartridge Kk is replaced.

Further, in the tilt holder 31 of the first embodiment, the support rotation shafts 48 of the supports 46 and 47 are disposed in the vicinity of the holder rotation shaft 32, so that the protruding amount of the guided rails 21 and 22 to the front can be reduced. It is possible. Therefore, in comparison with the case where the guided rails 21 and 22 protrude forward, in the cartridge holder KHk of the first embodiment, it is reduced that an operator contacts the protruded guided rails 21 and 22 and is injured. ing.
Further, when the support rotation shaft 48 and the holder rotation shaft 32 are close to each other, the rotation locus of the tilt holder 31 and the rotation locus of the supports 46 and 47 are approximated. Accordingly, in a state where the support is moved to the tilted position, the relative positions of the supports 46 and 47 are less displaced with respect to the tilted holder 31, and the protrusion amounts of the supports 46 and 47 from the lower surface of the tilted holder 31 are reduced. Therefore, unforeseen accidents such as contact with the protruding supports 46 and 47 and injury may be reduced.

  When the front cover 71 is rotated from the front end closed position shown in FIG. 5 to the front end open position shown in FIG. 6 while being moved to the inclined position, the lock stud 78 moves along the cover stud guide groove 56 a of the lock opening 56. Rotate. When the lock stud 78 moves away from the support lock release portion 56b and moves to the cover stud guide groove 56a, the supports 46 and 47 rotate. As shown in FIGS. 14 and 17, the supports 46 and 47 are moved from the lower rotation lock surface 53b to the rotation restricting position where the support connection stud 44 is fitted to the rotation lock surface 54a. In this state, the movement in the direction along the guide groove 53 is restricted, and as a result, the supports 46 and 47 cannot rotate, that is, the tilt holder 31 is moved from the tilt position toward the insertable position. Held in a non-rotatable state. Therefore, it is possible to prevent the tilt holder 31 from being accidentally rotated toward the insertable position with the front cover 71 being opened.

  When the front cover 71 is moved to the front end open position shown in FIG. 6, the cover side handle rotation port 76a is separated from the cartridge handle Kk6, and the toner cartridge Kk can be removed from the inclined holder 31 as shown in FIG. Become. Therefore, when the toner cartridges Kg to Kk attached to and detached from the upper part of the image forming apparatus U are attached and detached, the toner cartridges Kg to Kk move only in the front-rear direction and are not inclined downward like the inclined holder 31. The image forming apparatus U according to the first exemplary embodiment has a configuration in which the toner cartridges Kg to Kk can be easily replaced even by an operator who is short in height or who uses a wheelchair or the like.

(Explanation of work to install toner cartridge)
In FIG. 7, when a new toner cartridge Kk is mounted, the cartridge handle Kk6 is guided by the holder-side handle rotation port 63a and the holder-side attachment / detachment regulating surface 63c, and the new toner cartridge Kk is mounted on the cartridge holding surface 62a. The state shown in FIG. 6 is obtained. As shown in FIG. 6, when the front cover 71 is moved to the front end open position, the tilt holder 31 cannot rotate due to the contact between the rotation lock surface 54 a and the support connecting stud 44, and the link 27. The portion to be stopped 27b and the insertion preventing stop portion 16a are in an incapable state of insertion. Therefore, it is possible to prevent the tilt holder 31 from being rotated or inserted in a state where the front cover 71 is forgotten to be closed.

5 and 6, when the front cover 71 is rotated toward the front end closed position, the front cover 71 moves to the front end closed position shown in FIG. 16 through the state shown in FIG. In the front end closed position shown in FIG. 16, the support connecting stud 44 is in contact with the lower rotation lock surface 53 b, and the support 46 and 47 can be rotated upward. Even in this state, the stopped portion 27b of the link 27 is in contact with the insertion preventing stop portion 16a, and the guided rails 21 and 22 are held in a state where they cannot be inserted.
When the front cover 71 moves to the front end closed position, the cartridge handle Kk6 is sandwiched between the lock portion 83 and the cover-side attachment / detachment restricting surface 76c, and the rotation is restricted. Therefore, it is reduced that the cartridge Kk rotates with respect to the tilt holder 31 during the operation of gripping the cartridge handle Kk6, resulting in an operation different from the intended operation.

4 and 5, when the tilt holder 31 is rotated upward from the tilt position shown in FIG. 5, it moves toward the insertable position shown in FIG. At this time, the rotational force of the one-way hinge 38 incorporated in the holder rotation shaft 32 of the first embodiment is not limited in the rotation direction from the inclined position toward the insertable position. Therefore, compared with the case of using a braking member that restricts the rotational force in both directions as well as in one direction of rotation, the user tries to rotate the operator when rotating the tilt holder 31 from below to above. The load that limits the force to be applied does not act, and the operator can easily rotate it to the insertable position. Even if the hand is accidentally released while being raised to the insertable position, the rotation from the insertable position to the tilted position is limited in rotational force, preventing sudden drop and preventing the operator from being injured. Accidents have been reduced.
Further, in the inclined holder 31 of the first embodiment, the rear end protecting portion 64a of the left cover 64 fills the gap between the left side wall 36b and the left guided rail 21, and the guide rail 21 and the guided rail 21 are mistakenly rotated during the rotating operation. Accidents such as clogging fingers with the left cover 64 are also reduced.

When moved to the insertable position shown in FIG. 4, as shown in FIG. 11, the hook portion 42 d fits into the latch holes 51 of the supports 46 and 47, and it becomes possible to recognize that the operating operator has moved to the insertable position. ing. Even if the operator tries to rotate further upward from the insertable position, the support connection stud 44 is in contact with the upper rotation lock surface 53a of the guide groove 53 as shown in FIGS. Therefore, the upward rotation of the supports 46 and 47 is restricted, and the upward rotation from the position where the tilt holder 31 can be inserted is restricted.
Further, in the insertable position, the lock stud 78 of the front cover 71 is fitted into the cover lock portion 56c, and the front cover 71 is prevented from being accidentally opened to the front end open position.
Further, in the insertable position, the link 27 is moved to the stop portion separation position shown in FIG. 8, the stopped portion 27b is separated from the erroneous insertion stop portion 16a, and the guided rails 21 and 22 are moved to the rear receiving position. It is in a state where it can move toward.

3 and 4, when the user pushes the cartridge handle Kk6 from the insertable position shown in FIG. 4, the pushing rib Kk7 of the toner cartridge Kk contacts the rib contact portion 62b of the upper cover 62 as shown in FIG. Then, the inclined holder 31 and the guided rails 21 and 22 move together with the toner cartridge Kk toward the rear receiving position shown in FIG.
At this time, the toner cartridge Kk of Example 1 is held in a state where the cartridge handle Kk6 is sandwiched between the lock portion 83 and the cover-side attachment / detachment restricting surface 76c, and the outflow portion Kk2 corresponds to the shutter passage groove 6. Is in position. Accordingly, the outflow port portion Kk2 does not interfere and can move toward the accommodation position through the shutter passage groove 6.

In FIG. 21, when the tilt holder 31 or the like moves from the insertable position toward the storage position and the contacted portion 88 of the handle lock 81 contacts the front end surface of the front frame 1 at the edge of the opening 1a, the elastic force of the lock spring 87 Against the front cover 71 against this. Therefore, as shown in FIG. 21, when the tilt holder 31 or the like moves to the storage position, the handle lock 81 is held at a position protruding forward from the cartridge handle Kk6, and the cartridge handle Kk6 can rotate with respect to the tilt holder 31. It becomes a state.
In FIG. 3, when the cartridge handle Kk6 is rotated in a state where the cartridge handle Kk6 is released from the rotation restriction by the handle lock 81 after moving to the storage position, the outlet opening shown in FIG. 3B is opened from the outlet closing position shown in FIG. The position is moved to the position, and the outlet Kk3 and the inlet 9 are opened and connected. Therefore, the developer can be supplied from the toner cartridge Kk to the reserve tank RTk.

FIG. 22 is an explanatory diagram of the lower rotation restricting portion and the rotation restricting portion of the second embodiment, and corresponds to FIG. 16 of the first embodiment.
FIG. 23 is an explanatory diagram of the rotational position adjusting member of the second embodiment, FIG. 23A is an explanatory diagram of the rotational position adjusting opening with the rotational position adjusting member removed, and FIG. 23B is a rotational position adjusting member for the shallow rotational position. FIG. 23C is an explanatory view of a rotational position adjusting member for a middle rotational position, and FIG. 23D is an explanatory view of a rotational position adjusting member for a deep rotational position.
Next, a second embodiment of the present invention will be described. In the description of the second embodiment, components corresponding to the components of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. To do.
This embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.

  22 and 23, in the tilt holder 31 of the second embodiment, a substantially rectangular tilt stop is provided in front of the supports 46 'and 47' in place of the L-shaped tilt stop groove 52 of the first embodiment. A groove 52 'is formed. In FIG. 23A, the inclination stop groove 52 ′ of the second embodiment is formed continuously with the guide groove 53 ′ extending in the front-rear direction and the front end of the guide groove 53 ′ corresponding to the guide groove 53 of the first embodiment. In addition, the rotation restricting groove portion 54 of the first embodiment has a quadrangular rotation adjusting port 52a ′ having a vertical width corresponding to the vertical length. Further, an adjustment member mounting portion 52b is formed in front of the rotation adjustment port 52a ′.

In the adjustment member mounting portion 52b, as an example of the rotation adjustment member, any of a plate-shaped shallow rotation adjustment plate 91 shown in FIG. 23B, a medium rotation adjustment plate 92 shown in FIG. 23C, and a deep rotation adjustment plate 93 shown in FIG. Is selectively detachably supported.
In FIG. 23B, the shallow rotation adjusting plate 91 is formed in a shape in which the adjustment plate main body 91a that covers the front side of the rotation adjusting port 52a ′, the rear end portion of the adjusting plate main body 91a is cut out, and the rotation adjusting port 52a ′. And a shallow rotation groove forming portion 91b that forms the rotation restricting groove portion 54 in the gap therebetween. Therefore, in the adjustment plate main body 91a of the second embodiment, the lower rotation lock surface 91d as an example of the lower rotation restricting portion is configured by the surface corresponding to the front of the guide groove portion 53 ′ of the shallow rotation groove forming portion 91b.

  In FIG. 23C, the intermediate rotation adjusting plate 92 is a guide groove extending portion constituted by an adjustment plate main body 92a that closes the rotation adjusting port 52a 'and a groove that is connected to the front end of the guide groove portion 53' and extends forward on the extension line. 92b, and a middle rotation restricting groove portion 92c connected to the front end of the guide groove extending portion 92b and extending upward. Therefore, in the adjustment plate main body 92a of the second embodiment, the lower rotation lock surface 92d as an example of the lower rotation restricting portion is configured by the connection portion between the guide groove extending portion 92b and the middle rotation restricting groove portion 92c.

  In FIG. 23D, the deep rotation adjusting plate 93 includes an adjusting plate main body 93a that closes the rotation adjusting port 52a 'and a groove that is connected to the front end of the guide groove 53' and extends on the extension line to the front end of the rotation adjusting port 52a '. The guide groove extending portion 93b and a deep rotation restricting groove portion 93c extending upward from the front end of the guide groove extending portion 93b. Therefore, in the adjustment plate main body 93a of the second embodiment, the lower rotation lock surface 93d as an example of the lower rotation restricting portion is configured by the connection portion between the guide groove extending portion 93b and the deep rotation restricting groove portion 93c.

  Therefore, in the second embodiment, the length of the groove formed by combining the guide groove portion 53 ′ and the guide groove extending portions 92b and 93b is larger than that in the case where the shallow rotation adjustment plate 91 is attached. The case where the deep rotation adjustment plate 93 is attached is longer than the case where the intermediate rotation adjustment plate 92 is attached.

(Operation of Example 2)
In the image forming apparatus U according to the second embodiment having the above configuration, when the shallow rotation adjusting plate 91 is mounted on the rotation position adjusting member mounting portion 52b, the support connecting stud 44 is guided when the tilt holder 31 is tilted. It stops at an inclined position in contact with the lower rotation lock 91d, which is the front end of the groove 53 '.
On the other hand, when the intermediate rotation adjusting plate 92 is mounted, the support connecting stud 44 passes through the guide groove 53 'and stops at an inclined position where it contacts the lower rotation lock surface 92d of the front end of the guide groove extending portion 92b. Accordingly, the tilt position when the middle rotation adjustment plate 92 is mounted has a larger rotation angle from the insertable position than the tilt position when the shallow rotation adjustment plate 91 is mounted.

Similarly, when the deep rotation adjusting plate 93 is mounted, the support connecting stud 44 passes through the guide groove 53 'and stops at an inclined position where it contacts the lower rotation lock surface 93d of the front end of the guide groove extending portion 93b. Accordingly, the tilt position when the deep rotation adjustment plate 93 is mounted has a larger rotation angle from the insertable position than the tilt position when the medium rotation adjustment plate 92 is mounted.
Therefore, in the image forming apparatus U according to the second embodiment, when the rotation adjusting plates 91 to 93 are attached and detached, the inclination angle at the inclination position of the inclination holder 31 changes, and the inclination position is changed and adjusted according to the user's application and the like. be able to.

FIG. 24 is an explanatory diagram of a state in which the tilt holder of the third embodiment has moved to the accommodation position, and corresponds to FIG. 3 of the first embodiment.
FIG. 25 is an explanatory diagram of a state in which the tilt holder according to the third embodiment is moved to the drawing position, and corresponds to FIG. 4 according to the first embodiment.
FIG. 26 is an explanatory diagram of a state in which the tilt holder of the third embodiment has moved to the tilt position, and corresponds to FIG. 5 of the first embodiment.
Next, a third embodiment of the present invention will be described. In the description of the third embodiment, the same reference numerals are given to the components corresponding to the components of the first embodiment, and the detailed description thereof will be omitted. To do.
This embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.
24 to 26, the illustration of the toner cartridge is omitted.

24 to 26, in the cartridge holder KHk of the third embodiment, the guided rails 21 'and 22' are formed to have a longer length in the front-rear direction than the guided rails 21 and 22 of the first embodiment. Yes.
In FIG. 26, in the cartridge holder KHk ′ of the third embodiment, instead of the supports 46 and 47 of the first embodiment, a support 101 that connects the front end portion of the left guided rail 21 ′ and the front end portion of the inclined holder 31. Is supported. The support 101 has a base end portion as an example of one end portion supported by the guided rail 21 ′ so as to be rotatable about the support rotation shaft 101 a, and a tip portion as an example of the other end portion is provided in the embodiment. An elongated guide groove 102 extending along the support 101 corresponding to one guide groove 53 is formed. An upper rotation lock surface 102a corresponding to the upper rotation lock surface 53a of the first embodiment is formed on the support rotation shaft 101a side of the guide groove 102, and the lower side of the first embodiment is formed on the opposite side of the upper rotation lock surface 102a. A lower rotation lock surface 102b corresponding to the rotation lock surface 53b is formed.

A support connection stud 103 protruding to the outside corresponding to the support connection stud 44 of the first embodiment is supported in the guide groove portion 102 of the support 101 in a fitted state. Therefore, the tilt holder 31 of the third embodiment has the insertion permission position shown in FIG. 25 and the tilt position where the support connecting stud 103 contacts the lower rotation lock surface 102b shown in FIG. It is supported in a movable state between.
Further, in the inclined holder 31 of the third embodiment, the front cover 71 is omitted, and a handle-like holder handle 104 extending forward is integrally formed at the front end of the holder cover 61 ′. Therefore, in the third embodiment, the locking at the inclined position by interlocking the rotation of the front cover 71 and the supports 46 and 47 of the first embodiment and the mechanism for locking the rotation of the front cover 71 at the insertable position are omitted. ing. In the third embodiment, the drawer restricting member is configured only by the front end wall 63 of the holder cover 61.

(Operation of Example 3)
In the cartridge holder KHk ′ of the third embodiment having the above-described configuration, the guided rails 21 ′ and 22 ′ move between the housing position shown in FIG. 24 and the pull-out position shown in FIG. 25, as in the first embodiment. At the same time, the tilt holder 31 moves to the insertion permission position shown in FIG. 25 and the tilt position shown in FIG. Therefore, the toner cartridge Kk can be replaced at an inclined position inclined downward from the pulling position.

(Example of change)
As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various change is performed within the range of the summary of this invention described in the claim. It is possible. Modification examples (H01) to (H014) of the present invention are exemplified below.
(H01) In the above embodiment, the image forming apparatus U is configured by a so-called multi-function machine, but is not limited thereto, and may be configured by, for example, a printer, a FAX, or the like.
(H02) In the above-described embodiment, the image forming apparatus U is not limited to the configuration using six colors of toner, and may be configured to use, for example, five colors or less or seven colors or more of toner.

(H03) In the above embodiment, toners of six colors of G: green, O: orange, Y: yellow, M: magenta, C: cyan, and K: black are used. However, the present invention is not limited to this. : It is also possible to use toners of colors other than the above six colors instead of the green and O: orange toners. In addition, colorless toner that coats the surface of the image for waterproofing and protection, colors that symbolize organizations such as companies and organizations, so-called corporate colors, and in the image of printing paper to prevent theft It is also possible to use a magnetic toner for forming a preset shape and arrangement, for example, a linear magnetic wire. An anti-theft device for detecting a magnetic pulse generated from a magnetic wire is described in, for example, Japanese Patent Application Laid-Open No. 2006-256124, and is well known.

(H04) In the above-described embodiment, the configuration using a one-way hinge as an example of a braking member is illustrated. However, it is preferable to use a one-way hinge, but for example, a torque limiter that performs braking in both forward and reverse rotation directions is used. Is also possible. In addition to this, it is also possible to use a shock absorber, a so-called damper, whose load resistance increases as the speed increases, as a braking member.
(H05) In the above embodiment, the rail-shaped guided rails 21, 22, 21 ′, and 22 ′ are exemplified as an example of the drawer body. However, the configuration is not limited to this configuration, and a conventionally known drawing direction such as a so-called slider is used. It is possible to use a movable configuration.

(H06) In the above-described embodiment, the toner cartridges Kg to Kk adopt a configuration in which the cartridge shutter Kk4 moves in the circumferential direction along the peripheral surface. However, the configuration is not limited to this configuration, and for example, along the pull-out direction. It is also possible to adopt a configuration that can be opened and closed, and that is opened and closed when moving between the drawer position and the storage position. When such a configuration is adopted, since the toner cartridge does not need to rotate on the holding body 36 + 61, the shape of the handle rotation ports 63a and 76a is not a fan shape, but along the vertical direction through which the handle Kk6 can pass. The handle lock 81 can also be omitted.
(H07) In the above-described embodiment, it is desirable to adopt a configuration in which the guide rails 21 and 22 are held at the pull-out position in a state where the link 27 is provided and the tilt holder 31 is not moved to the insertable position. It is also possible to do.

(H08) In the above-described embodiment, the hook by the hook portion 42d and the latch hole 51 makes the operator perceive that the hook has moved to the insertable position, or assists in holding the tilt holder 31 at the insertable position. It is desirable to adopt the configuration, but it is possible to omit it. Moreover, although the combination of the pin 42 and the latch hole 51 is adopted, the present invention is not limited to this configuration. For example, a conventionally known arbitrary configuration such as a combination of a claw and a hole or a claw and a pin can be used. It is. Further, although the pin 42 is provided in the holder frame 36 and the latch hole 51 is provided in the supports 46 and 47, the holder frame 36 may be provided with a latch hole and a pin may be provided in the support.
(H09) In the above-described embodiment, the rotation lock surface 54a and the support connecting stud 44 are fitted by the rotation of the supports 46 and 47 and the front cover 71, and the tilt holder 31 must be moved unless the front cover 71 is moved to the front end closed position. It is desirable to adopt a configuration that locks in a non-rotatable state, but may be omitted.

(H010) In the above-described embodiment, the configuration in which the cartridge handle Kk6 is operated by the contact between the push-in rib Kk7 and the rib contact portion 62b to move from the pull-out position to the storage position is exemplified. Arbitrary configurations can be adopted as the pushing-in configuration. For example, the front end of the toner cartridge Kk may be completely covered with the front cover, and an operation unit may be provided on the front cover 71 and the like, and the front cover 71 may be pushed to move toward the storage position.
(H011) In the above embodiment, the holder cover 61 is preferably provided, but can be omitted, and each part of the holder cover 61 can be provided on the holder frame 36.

(H012) In the above-described embodiment, the configuration in which the rotation of the front cover 71 and the supports 46 and 47 are interlocked with each other by the lock stud 78 and the lock opening 56 is illustrated. It is also possible to adopt a configuration that can move independently. Further, the present invention is not limited to the combination of the stud 78 and the opening 56, and an arbitrary interlocking mechanism can be used. The stud 78 can be provided in the supports 46 and 47, and the opening can be provided in the front cover.
(H013) In the above embodiment, the shape and the like of the handle lock 81 are not limited to the configuration exemplified in the embodiment, and can be changed according to the design, specifications, and the like.
(H014) In the embodiment, when the toner cartridges Kk to Kg are mounted through the handle passage port 63b, the rotational position may be shifted from the outlet closing position to the outlet opening position. Therefore, it is desirable to incorporate a mechanism for rotating the toner cartridges Kk to Kg to the outlet closing position when the front cover 71 is closed. For example, it is possible to provide the handle lock 81 with a cam that rotates in contact with the front ends of the toner cartridges Kk to Kg, and to move the front cover 71 to the outlet closing position as the front cover 71 is closed.

21, 22 ... drawer body,
31 ... rotating holder,
32, 33 ... rotating shaft,
38 ... braking member, overload protection device, one-way rotation transmission cutoff device Gg-Gk ... developer,
Kg to Kk: Detachable body, developer container,
KHg to KHk: Detachable body holding device,
Pg to Pk: Image carrier,
U: Image forming apparatus,
U3: Image forming apparatus main body.

Claims (3)

A drawer body supported in a movable manner between a housing position housed inside the image forming apparatus main body and a drawer position pulled out of the image forming apparatus main body from the housing position;
A rotary holding body that is supported by the drawer body so as to be rotatable about a rotation axis, and is movably supported integrally with the drawer body, and holds a detachable body that is attached to and detached from the image forming apparatus main body; An insertable position where the drawer body is movable from the drawer position toward the accommodation position, and an inclined position where the drawer body is rotated downward with respect to the insertable position about the rotation axis and tilted downward. And the rotation holding body movable between,
A braking member that is disposed on a rotation shaft of the rotation holding body and suppresses a moving speed at which the rotation holding body rotates and moves to the inclined position, and when a rotation force that is greater than a preset rotation force is applied. The braking member constituted by an overload protection device that cuts off transmission of rotational force equal to or greater than the set rotational force;
The set rotational force set to a value smaller than the natural rotational force that rotates the rotating holder by gravity; and
A detachable body holding device comprising: A rotational force in a return rotational direction that is a rotational direction from the tilt position toward the insertable position is transmitted, and a rotational force in the tilt rotational direction that is a rotational direction from the insertable position toward the tilt position is the set rotation. The overload protection device configured by a transmission cutoff device that cuts off transmission of rotational force equal to or greater than the set rotational force when the force is greater than or equal to a force;
The detachable body holding device according to claim 1 , further comprising: An image carrier,
A developing unit for developing the latent image on the surface of the image carrier into a visible image;
The detachable body constituted by a developer container containing a developer to be replenished to the developing device;
The detachable body holding device according to claim 1 or 2 ,
An image forming apparatus comprising:

Images