CN101365037B - Image reading apparatus, image forming apparatus and image forming system - Google Patents
Image reading apparatus, image forming apparatus and image forming system Download PDFInfo
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- CN101365037B CN101365037B CN200810129476XA CN200810129476A CN101365037B CN 101365037 B CN101365037 B CN 101365037B CN 200810129476X A CN200810129476X A CN 200810129476XA CN 200810129476 A CN200810129476 A CN 200810129476A CN 101365037 B CN101365037 B CN 101365037B
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Abstract
The invention provides an image reading apparatus, an image forming apparatus, an image forming system that employs the image reading apparatus and the image forming apparatus An image reading apparatus reads an image of a document. An image reading section (105) reads an image of a document. A scanning mechanism (16) causes the image reading section (105) to move relative to the document when the document is at rest. When the image reading section (105) is at rest, a document feeding mechanism (23, 27, 61) causes the document to move relative to the image reading section (105). A shutter (33, 46, 129) moves to a first position where the shutter (33, 46, 129) opens, allowing the image reading section (105) to read the image of the document when the document moves relative to the image reading section (105) at rest. The shutter (33, 46, 129) moves to a second position where the shutter (33, 46, 129) closes, allowing the image reading section (105) to read the image of the document when the image reading section (105) moves relative to the document at rest.
Description
Technical field
The image formation system that the present invention relates to image read-out, image processing system and adopt this image read-out and this image processing system.
Background technology
Traditional image forms device, like photocopier, facsimile machine, multi-function printer (MFP), is equipped with the image read-out that is used to read the manuscript image.Image read-out comprises automatic manuscript feeder (ADF) and scanner.ADF sends the multipage manuscript to scanner page by page.Scanner reads the image of the every page of manuscript that is come by the ADF feeding.
Scanner comprises the image read sensor.The image read sensor reads the image of the manuscript that is come by the ADF feeding and the image that is placed on the manuscript on the platform (flatbed).In order to read the image that is placed on the manuscript on the platform, must manuscript be pressed against on the platform through flat board.For this reason, when reading the image of the manuscript that is come by the ADF feeding, the image that the image read sensor must be positioned on the platform reads the outside, zone.
The traditional images reading device of aforementioned structure has run into following problem: be arranged on the overall dimension that image read sensor that image reads the zone outside has increased image read-out.
Summary of the invention
The objective of the invention is to solve the problem of aforementioned conventional device.
Another object of the present invention is to provide a kind of image read-out and image processing system; Wherein be provided with valve; Make said valve to open or close with respect to image reading section; Thereby image reading section is positioned at image reads location, so that the overall dimension of image read-out can be less.
Image read-out reads the image of manuscript.Image reading section 105 reads the image of manuscript.When the manuscript standby, sweep mechanism 16 makes image reading section 105 move with respect to manuscript.When image reading section 105 standbies, manuscript feed mechanism 23,27,61 makes manuscript move with respect to image reading section 105.When manuscript moved with respect to the image reading section 105 of standby, valve 33,46,129 moved to primary importance, and on primary importance, valve 33,46,129 is opened, and allowed image reading section 105 to read the image of manuscript.When image reading section 105 moved with respect to the manuscript of standby, valve 33,46,129 moved to the second place, and on the second place, valve 33,46,129 is closed, and allowed image reading section 105 to read the image of manuscript.
Further range of application of the present invention is obvious from the detailed description that provides thereafter.Yet, should be understood that, set forth the preferred embodiments of the present invention though specify with concrete example, only provide through illustrating mode.Because to those skilled in the art, various modifications in the spirit and scope of the present invention and modification specify obvious from this.
Description of drawings
The present invention will be understood according to detailed description and accompanying drawing that hereinafter provides more fully, accompanying drawing only provide with the mode that illustrates and thereby do not limit the present invention, wherein:
Fig. 1 is the front view of image formation system;
Fig. 2 is the left view of image formation system;
Fig. 3 illustrates the structure of the image processing system of first embodiment;
Fig. 4 A is first side cross-sectional view that illustrates the relevant portion of the image read-out that is in automatic mode;
Fig. 4 B is the expanded view of the relevant portion of Fig. 4 A;
Fig. 5 A is second side cross-sectional view that illustrates another relevant portion of the image read-out that is in manual mode;
Fig. 5 B is the expanded view of the relevant portion of Fig. 5 A;
Fig. 5 C is the partial enlarged drawing of position that expression is in the valve of manual mode;
Fig. 5 D is the partial enlarged drawing of position that expression is in the valve of automatic mode;
Fig. 6 is the perspective view that illustrates the structure of the driver portion that is in automatic mode;
Fig. 7 illustrates the details of carriage;
Fig. 8 is the perspective view that illustrates the structure of the driver portion that is in manual mode;
Fig. 9 illustrates the position relation between locking component and the feeder;
Figure 10 A is the perspective view that illustrates the structure of the manuscript pressing plate that is used for image read-out;
Figure 10 B illustrates the valve of when valve is opened window, seeing from direction shown in the arrow M shown in Fig. 5 B;
Figure 11 is the perspective view that illustrates the structure of manuscript pressing plate;
Figure 12 is the perspective view that illustrates valve;
Figure 13 illustrates all places of carriage in the platform scanner device;
Figure 14 is the time diagram of the work of pictorial images reading device;
Figure 15 illustrates the modification of valve 33;
Figure 16 A is the sectional view of structure of the image read-out of diagram second embodiment;
Figure 16 B is the expanded view of the relevant portion of Figure 16 A;
Figure 17 is the perspective view of structure of driver portion of the image read-out of diagram second embodiment;
Figure 18 is the perspective view of the structure of diagram manuscript pressing plate;
Figure 19 A be the diagram image read-out that is in automatic mode relevant portion structure first launch sectional view;
Figure 19 B is to direction perspective view that observe, when valve is opened window shown in the arrow P of valve shown in Figure 19 A from Figure 19 A;
Figure 20 be the diagram image read-out that is in manual mode relevant portion structure second launch sectional view;
Figure 21 A is the side cross-sectional view of the 3rd embodiment of the relevant portion of the diagram image read-out that is in automatic mode;
Figure 21 B is the partial enlarged drawing that illustrates the position of the valve that is in manual mode;
Figure 21 C is the partial enlarged drawing that illustrates the position of the valve that is in automatic mode;
Figure 22 is the perspective view of structure of the manuscript pressing plate of the diagram image read-out that is in manual mode;
Figure 23 illustrates the position of action bars;
Figure 24 illustrates all places of carriage in the platform scanner device.
Embodiment
To embodiments of the invention be described referring to accompanying drawing below.
First embodiment
{ general structure }
Fig. 1 is the front view of image formation system 100.Fig. 2 is the left view of image formation system 100.
Fig. 3 illustrates the structure of the image formation system of first embodiment.
Referring to Fig. 3, image formation system 100 comprises image processing system 1 and is arranged on the image read-out 13 on the image processing system 1.Image formation system for example adopts the form of multi-function printers (MFP) such as photocopier or facsimile machine.Image formation system 100 can adopt any other device form; As long as image formation system 100 comprises the image read-out 13 of the image that is used to read manuscript (for example, printed paper) and gets final product with the image processing system 1 that is used for print image on print media such as paper.
Image formation unit 8 comprises 4 imaging drum units, and 4 imaging drum units form the toner image of respective color and toner image is transferred on the print media.Photographic fixing part 9 will be transferred to the toner image on the print media.Carton 2 holds a folded print media therein, and print media is fed into image formation unit 8 page by page.
Image formation unit 8 comprises a plurality of imaging drum units, and each imaging drum unit charges, makes public, develops and transfer process the image of respective color.When print media passed through the imaging drum unit, the toner image of each color was transferred on the stacked aligned with each otherly print media.Carrying warm-up mill and photographic fixing backer roll between the point of print media through being limited to photographic fixing part 9 of toner image, at this photographic fixing point, the toner image of each color fuses into full-colour image.
Distributing roller 10 and 11 is provided with along the medium transmission path, and the print media of discharging from photographic fixing part 9 is transmitted this medium transmission path.Distributing roller 11 is discharged to print media and discharges on the pallet 12.
Image read-out 13 is arranged on the image processing system 1, and comprises manuscript feeding pallet 17, manuscript feeding part 14, discharge pallet 19 and platform scanner 15.Manuscript feeding part 14 is connected to platform scanner device 15 with hinging manner, so that manuscript feeding part 14 can pivot with respect to platform scanner device 15.When manuscript feeding part 14 pivots away from platform scanner device 15, allow the user manuscript to be placed on the platform 20 of platform scanner device 15 with the hand feed manuscript.When manuscript feeding part 14 when platform scanner device 15 pivots, do not allow the user that manuscript is placed on the platform 20 but allow it that manuscript is placed on the manuscript feeding pallet 17 with feeding manuscript page or leaf automatically.Manuscript feeding pallet 17 supports the manuscript page or leaf above that, and comprises guider 18, and guider 18 extends and setting relatively along the direction that is roughly parallel to the manuscript direct of travel, between them, places the manuscript page or leaf.The manuscript page or leaf that guider 18 will be placed on the manuscript feeding pallet 17 imports image read-out 13.Manuscript feeding part 14 is fed into image reading position 62 (Fig. 4 B) with the manuscript page or leaf, and in image reading position 62, the image of manuscript is read through hole 16a by image reading section 105 optically.Each when the image of manuscript page or leaf has been read, this manuscript page or leaf just is discharged to discharges on the pallet 19.
{ structure of image read-out }
The structure of image read-out 13 will be described below.
Fig. 4 A is first side cross-sectional view that illustrates the relevant portion of the image read-out 13 that is in first pattern or automatic mode.Fig. 4 B is the expanded view of the relevant portion of Fig. 4 A.Fig. 5 A is second side cross-sectional view that illustrates another relevant portion of the image read-out 13 that is in second pattern or manual mode.Fig. 5 B is the expanded view of the relevant portion of Fig. 5 A.Fig. 5 C is the partial enlarged drawing of position that expression is in the valve 33 of manual mode.Fig. 5 D is the partial enlarged drawing of position that expression is in the valve 33 of automatic mode.Fig. 6 is the perspective view that illustrates the structure of the driver portion that is in automatic mode.
Automatic mode is a kind of mode of operation of image read-out 13, and in this pattern, manuscript feeding part 14 is fed into image with one page or multipage manuscript and reads regional A, reads regional A at this image, and manuscript reading section 105 reads the image of manuscript.In automatic mode, carriage 16 remains on image reading position 62 places shown in Fig. 4 A and the 4B, and image reading section 105 reads the image of manuscript.
Manual mode is the another kind of mode of operation of image read-out 13, and in this pattern, the user manually is placed on the manuscript page or leaf on the platform 20, so that the image of manuscript is read by image reading section 105.In manual mode, carriage 16 moves along guide rail 16a with direction shown in the arrow C of constant speed in Fig. 5 A with respect to platform 20, after reading one page manuscript, returns to the direction opposite with arrow C then.
Referring to Fig. 4 A and Fig. 6, feeder (hopper) the 28 feasible leading edge flattened that are supported on the manuscript page or leaf on the manuscript feeding pallet 17.Feeder 28 is arranged between the position of position and Fig. 5 A of Fig. 4 A and pivots around an axle 28a (Fig. 6), and by spring 29 application of force upwards.Feed rolls 22 is fed into image read-out 13 page by page with the manuscript page or leaf.Separating pad 31 is pushed against on feed rolls 22 by spring 30, and cooperates so that uppermost page or leaf is separated from the manuscript heap with feed rolls 22.Delivery roll 23 is transferred to image page by page with the manuscript page or leaf and reads a little 62.When the image of one page had read through image reading section 105, distributing roller 25 was just discharged this page manuscript.The 26 pairs of manuscript pressing members of spring or paper-weight 27 application of forces so that paper-weight 27 flexibly is pressed against manuscript on the transparent guide device 61, allow the manuscript page or leaf through image reading position 62 simultaneously.Manuscript faces down before the ground and then through image reading position 62, wherein the image-side of manuscript is slided on transparent guide device 61.Paper-weight 27 extends to the direction that is approximately perpendicular to the manuscript direct of travel.Feed rolls 22, delivery roll 23 and distributing roller 25 are respectively around driving shaft 35,36 and 37 rotations.Delivery roll 23, distributing roller 25, paper-weight 27 and colourless transparent guide device 61 constitute the manuscript feed mechanism.
Fig. 7 illustrates the details of carriage 16.The image reading section 105 that is installed on the carriage 16 moves to feeding direction (the C direction among Fig. 5 A) with carriage 16, scans the image of manuscript simultaneously along the horizontal direction that is approximately perpendicular to feeding direction.
Referring to Fig. 7, light source or cold-cathode tube 100 send light and give manuscript.The electrode of cold-cathode tube 100 should be the electrode of long-life, low-power consumption, like molybdenum electrode, but also can be the electrode of any kind.Incide on the mirror 101a then to mirror 101b by the light of manuscript reflection.Image read system 105 comprises sensor element 103, like charge-coupled device (CCD) or complementary metal oxide semiconductors (CMOS) (CMOS); With such as lens 102 optical elements such as grade and such as light guides such as mirror 101a and 101b.Lens 102 will be by the optical convergence of mirror 101b reflection on imageing sensor 103.Imageing sensor 103 adopts the form of charge-coupled device (CCD) and the light that will receive to convert digital signal into.
In automatic mode, valve 33 moves and opens window 101 (Fig. 4 A, Fig. 4 B and Fig. 5 D).Carriage 16 remains on the image reading position 62, reads manuscript so that image reading section 105 sees through window 101.Image reading section 105 only reads the part that window 101 is directly faced read sensor 105 that sees through in the manuscript image.When manuscript moved through window 101, image reading section 105 saw through the image that window 101 reads manuscript.Should be noted that image reading position 62 is in the image that is defined on the platform 20 and reads in the regional A (Figure 13), in manual mode, read sensor 105 reads among the regional A at this image and moves to read the image of manuscript.Transmit in the narrow path that manuscript limits between transparent guide device 61 and paper-weight 27.Spring 26 allows manuscript to pass through narrow path downwards to paper-weight 27 application of forces so that paper-weight 27 is pressed against manuscript simultaneously on the transparent guide device 61.
Opaque guider instead transparent guide device 61 uses, and in the case, window 101 can be the pure opening (for example, slit) that in opaque guider, forms.Opening should extend along the length direction that is approximately perpendicular to manuscript page or leaf direct of travel, and has the length greater than the manuscript width.Opening should have enough wide width, makes that image reading section 105 can see through the image that hole 16a reads manuscript when manuscript moves with respect to image reading section 105.
In manual mode, valve 33 along continuous straight runs are moved to the left, and 62 places close window 101 fully in image reading position, shown in Fig. 5 A, Fig. 5 B and Fig. 5 C.
{ driver portion }
The driver portion of image read-out 13 will be described below.
Fig. 6 is the perspective view that illustrates the structure of the driver portion that is in automatic mode.
Fig. 8 is the perspective view that illustrates the structure of the driver portion that is in manual mode.
Fig. 9 illustrates the position relation between locking component 38 and the feeder 28.
Referring to Fig. 6 and Fig. 8, driving shaft 35,36 (Fig. 4 A), 37 (Fig. 4 A) and 39 are installed on the base frame 43 of image read-out 13.The gear that is used to drive valve 33 comprises the first gear 32a and the second gear 32b, and the first gear 32a and the second gear 32b are arranged on the relative both sides in manuscript path.Gear 32a and 32b are installed on the driving shaft 39.The axle 28a of feeder 28 also is installed on the base frame 43.
Image read-out 13 comprises CD-ROM drive motor 34, CD-ROM drive motor 34 drives driving shaft 35-37 and 39, be connected to locking component 38 on the driving shaft 35, detect the manuscript on the feeder 28 transducer 42, be installed to torque limiter 40 on the driving shaft 39, be formed on the base frame 43 and with rib 43a (Fig. 9) and the gear 44 and the 54-60 of locking component 38 butts.
When the user is placed on 28 last times of feeder with one page or multipage manuscript, manuscript is depressed transducer 42, thereby transducer 42 detects manuscript.The gear 54 that is connected on the driving shaft 35 drives feed rolls 22 and locking component 38 rotations (Fig. 9).The gear 56 that is connected on the driving shaft 36 drives delivery roll 23 (Fig. 5 A) rotation.Gear 60 is connected on the driving shaft 37 and drives distributing roller 25 rotations.
Gear 55-59 is a bidentate wheel type, and the actuating force of CD-ROM drive motor 34 is passed to gear 54,56 and 60.Gear 58 and gear 57 and 59 engagements.Gear 57 and gear 56 engagements.Gear 59 and gear 44,55 and 60 engagements.
Manuscript is fed in the automatic mode of image reading position 62 in manuscript feeding part 14, CD-ROM drive motor 34 is to the rotation of direction shown in the hollow arrow F of Fig. 6, and valve 33 (Figure 12) moves to the direction shown in the arrow N.CD-ROM drive motor 34 driven wheels 54, gear 54 make locking component 38 rotate to the direction shown in the arrow L (Fig. 9) then.Thereby locking component 38 release feeders 28 allow feeder 28 to rotate to the direction shown in the hollow arrow G (Fig. 6) around axle 28a.Feeder 28 up moves to the direction shown in the arrow K (Fig. 9).
The user manuscript manually is placed in the manual mode on the platform 20, CD-ROM drive motor 34 is to the rotation of the direction shown in the hollow arrow H of Fig. 8, thereby valve 33 moves to the B direction.Because locking component 38 locking feeders 28, feeder 28 rotates to the direction shown in the hollow arrow I around axle 28c.
Figure 10 A is the perspective view that illustrates the structure of the manuscript pressing plate 21 that is used for image read-out 13.
Figure 10 B illustrates the valve of when valve 33 is opened window 101, seeing from the direction shown in the arrow M of Fig. 5 B 33.
Figure 11 is the perspective view that illustrates the structure of manuscript pressing plate 21.
Figure 12 is the perspective view that illustrates valve 33.
Referring to Figure 10 A, 10B and 11, image read-out 13 comprises the lid 41 of sealing platform 20 and the manuscript feed mechanism that is made up of delivery roll 23, distributing roller 25, paper-weight 27 and transparent guide device 61.Lid 41 is included in elongated orifices 41a and the 41b that wherein relative position forms.Valve 33 comprises post 33a and 33b (Figure 12), and post 33a and 33b loosely fit into respectively among elongated orifices 41a and the 41b, thereby valve 33 can slide with respect to lid 41.Valve 33 can be taked the form of white plastic plate or tabular component, reflects white sheet and is attached on the valve 33.
Get back to Fig. 6 and 8, when the torque greater than predetermined value is applied to 40 last times of torque limiter, torque limiter 40 allows gears 44 to rotate with the idle running mode, thereby actuating force is not passed to first and second gear 32a and the 32b from gear 44.The predetermined value of torque should be for example 300gcm, and it is greater than the value that is enough to open and close valve 33.
In automatic mode, valve 33 is opened, shown in Figure 10 B and 11, to open window 101.In manual mode, valve 33 is closed, shown in Figure 10 A, to close window 101.
Figure 13 illustrates all places of carriage 16 in platform scanner device 15.When the image read operation did not start, carriage 16 was in position H, and position H is an initial position.In automatic mode, when the user presses start button with scanning or when duplicating manuscript, carriage 16 is moved to position E from initial position H, and on the E of this position, image reading section 105 reads the image through the manuscript that reads position 62.In manual mode, the B place begins to read the image of manuscript and the C place stops to read in the position to image reading section 105 in the position.Carriage 16 slows down after through position C and stops at G place, position.Distance B between position C and the position G be longer than between position B and the position E apart from F.
{ operation principle of image formation system }
{ operation principle of image processing system }
The operation principle of the image formation system 100 of aforementioned structure will be described below.The operation principle of image processing system 1 is at first described.
Feed rolls 3 is from carton 2 feeding print media (for example, paper) page by page.Print media is transferred to image formation unit 8 through delivery roll 5 and 7, and image formation unit 8 is transferred to the toner image of each color on the print media then.Print media with toner image is advanced to photographic fixing part 9 then.Print media is through the photographic fixing point, and toner image becomes full-colour image by heat with fusing by pressure at photographic fixing point place.Then, print media is discharged to through distributing roller 10 and 11 and discharges pallet 12.This has just accomplished the work of image processing system 1.
{ operation principle of image read-out }
{ automatic mode }
The operation principle of image read-out 13 will be described now.The operation principle of image read-out 13 in automatic mode described earlier.
Figure 14 is the time diagram of the work of pictorial images reading device 13.
When the user is placed on 17 last times of manuscript feeding pallet with manuscript, manuscript slides and transducer 42 is pressed down to transducer 42 on manuscript feeding pallet 17, thereby transducer 42 detects manuscript (t0 constantly).Subsequently, the user depresses start button (not shown) for example reads manuscript with order image (ts constantly).Then, CD-ROM drive motor 34 rotates to the direction shown in the hollow arrow F of Fig. 6.When manuscript is not placed on manuscript feeding pallet 17 last times (that is, when transducer 42 does not detect manuscript), even send the order of reading manuscript by the user, can judge on feeder 28 does not have manuscript yet.Thereby CD-ROM drive motor 34 does not rotate.
When CD-ROM drive motor 34 when F direction (Fig. 6) is rotated, gear 44,54-59 and 60 rotate to the direction shown in the arrow of Fig. 6.Be connected to locking component 38 on the driving shaft 35 to the directions rotation identical, be connected to the rib 43a (Fig. 9) that forms on the base frame 43 then and go up to stop with gear 54.This makes locking component 38 break away from from feeder 28, thus release feeder 28.
Because the first gear 32a and the second gear 32b and the locking component 38 that are installed on the driving shaft 39 rotate simultaneously, valve 33 slides to the N of Fig. 6 direction.When the post 33a of valve 33 and 33b were connected to the length direction end of covering the elongated orifices 41a that forms in 41 and 41b respectively, big load was applied on the driving shaft 39, thereby valve 33 can not continue to move again.As a result, torque limiter 40 allows gear 44 to rotate with the idle running mode, thereby actuating force no longer passes to the first gear 32a and the second gear 32b from gear 44.Thereby the first and second gear 32a and 32b stop the rotation.This makes that valve 33 stops to slide, and valve 33 is opened window 101 (t1 constantly).Thereby window 101 comes out, and is shown in figure 11.
When feeder 28 was unlocked, the active force of spring 29 made feeder 28 pivot to the direction shown in the hollow arrow G (Fig. 6) around axle 28a, thereby allows manuscript closely to contact feed rolls 22.Feed rolls 22 with manuscript from manuscript feeding pallet 17 page by page to delivery roll 23 feedings.Subsequently, delivery roll 23 is fed into manuscript the image reading position 62 of hole 16b top of the image reading section 105 of standby, shown in Fig. 4 A.Then, image reading section 105 starts read (t2 constantly) of manuscript image.Paper-weight 27 is pressed against manuscript on the window 101 of transparent guide device 61, allows manuscript to pass through image reading position 62 simultaneously.
After the image of manuscript had been read, delivery roll 25 was discharged to manuscript and discharges on the pallet 19.Like this, manuscript is fed into image reading position 62 from manuscript feeding pallet 17, thereby image reading section 105 reads the image (t2 is to moment t4 constantly) of manuscript.
When all manuscript pages or leaves all when 17 feedings of manuscript feeding pallet are gone out, transducer 42 is got back to position shown in Figure 8 (transducer 42 projects upwards), the detection output of transducer 42 becomes " closing " (t3 constantly).
When the last page of manuscript during through image reading position, the manuscript image read completions (moment t4).Thereafter, the 34 rotation scheduled times of CD-ROM drive motor, (t5 constantly) stops when the last page of manuscript has been discharged then.
Then, CD-ROM drive motor 34 stops the rotation the scheduled time, and CD-ROM drive motor 34 temporarily rotates (t6 constantly) to the rightabout shown in the hollow arrow H (Fig. 8) under the control of program then.This makes gear 44,54-59 and 60 rotate to the direction shown in the arrow of Fig. 8.Then, be connected to locking component 38 on the driving shaft 35, promote feeder 28 downwards, thereby feeder 28 pivot to the direction shown in the hollow arrow I around an axle 28a with the directions rotation identical with gear 54.So just, lock feeder 28.
When locking component 38 rotations, the first gear 32a and the second gear 32b that are fixed on the driving shaft 39 rotate simultaneously.As shown in Figure 8, valve 33 is to the window 101 of B direction (Fig. 8) slip to close transparent guide device 61, shown in Figure 10 A.Then, CD-ROM drive motor 34 stop the rotation (constantly t7).
{ manual mode }
The operation principle of image read-out 13 under manual mode will be described below.
In manual mode, manuscript be placed on the platform 20 and thereby transducer 42 detect less than manuscript.Valve 33 remains on such position: valve 33 closes window 101, as Fig. 5 A, 8 and 10A shown in.
When the user depressed that for example the start button (not shown) reads the image of manuscript with order, carriage 16 moved to the direction shown in the arrow C of Fig. 5 A with constant speed.Image reading section 105 moves with carriage 16, reads the image that is placed on the manuscript on the platform 20 simultaneously.
The view data that is read by image read-out 13 is transmitted to image processing system 1, and image processing system 1 starts image and forms.
As stated, in automatic mode, image reading section 105 remains on image reading position 62 places and reads the image of manuscript.In manual mode, image read sensor 105 is striden the image that is limited on the platform 20 and is read regional A and move.The image of image reading position 62 on platform 20 reads in the regional A.As a result, the overall dimension of image read-out 13 can be less.
In addition, valve 33 is to open and close with CD-ROM drive motor 34 interlocking relationship.This simple mechanism provides the even reflection of light from the image-side of manuscript, guarantees that image reading section 105 reads the image of manuscript exactly.
{ modification of first embodiment }
Figure 15 illustrates the modification of valve 33.Valve 33 can be replaced by another valve 433 shown in Figure 15.Valve 433 is equivalent to valve 33 and the structure of manuscript pressing plate 21 as single.Valve 433 is to move with CD-ROM drive motor 34 interlocking relationship.
{ second embodiment }
The manuscript feeding part 14 of second embodiment and the difference of first embodiment are, adopt falp value 46.With the identical Reference numeral of first embodiment components identical mark, and save its description.The operation principle identical and the description of advantage have also been omitted with first embodiment.
Figure 16 A is the sectional view of structure of the image read-out 13 of diagram second embodiment.
Figure 16 B is the expanded view of the relevant portion of Figure 16 A.
Figure 17 is the perspective view of structure of the driver portion of pictorial images reading device 13.
Figure 18 is the perspective view of the structure of diagram manuscript pressing plate 21.
Figure 19 A be shown in the colourless transparent region 46a of valve 46 in the automatic mode be positioned at image reading position 62 (Figure 16 B) image read-out 13 when locating the relevant portion structure first launch sectional view.
Figure 19 B is to the perspective view that observe, when valve is opened window of direction shown in the arrow P of valve shown in Figure 19 A from Figure 19 A.
Figure 20 be transparent region 46a image read-out 13 during of being shown in valve 46 in the manual mode away from image reading position 62 the relevant portion structure second launch sectional view.
Give in the automatic mode of image reading position 62 at manuscript feeding part 14 feeding manuscripts; Shown in Figure 16 B, transparent region 46a occupies image reading position 62, in image reading position 62; This transparent region 46a, paper-weight 27 and image reading section 105 are aligned with each other, shown in Figure 16 B.Should be noted that the image of image reading position 62 on being limited to platform 20 reads in the zone.Image reading section 105 reads the image of the manuscript that moves through image reading position, and this image is seen through transparent guide device 61, platform 20 and transparent region 46a and reads.Manuscript is transmitting through the close clearance between transparent guide device 61 and paper-weight 27 after the image reading position 62.26 pairs of paper-weights 27 of spring are towards the transparent region 46a application of force, and paper-weight 27 is pressed against manuscript and allows manuscript to pass through said gap on the transparent guide device 61 simultaneously.
Manuscript is placed in the manual mode on the platform 20 the user, valve 46 moves to the position on image reading position 62 right sides.In other words, transparent region 46a no longer is between platform 20 and the transparent guide device 61, but is in the rear of manuscript pressing plate 21, and is shown in figure 18.
Referring to Figure 17,19A, 19B and 20, roller 48 and 53 is installed on the base frame 43, can rotate with the idle running mode around its rotating shaft.Roller 48 and 53 is beneficial to level and smooth the moving that valve 46 carries out to D and E direction, and prevents the damage and the contamination of valve 46.
Referring to Figure 18, torque limiter 50 and 52 is respectively installed to driving shaft 45 and 47.When the torque greater than predetermined value is applied to driving shaft 45 and 47 last times, torque limiter 50 and 52 allows gears 49 and 51 free-runing operation, and gear 49 and 51 is respectively installed on spools 45 and 47.The predetermined value of torque should be selected as for example 300gcm greater than the torque that is enough to move valve 46.
The remainder of structure is identical with first embodiment and save its description.
{ operation principle of image read-out }
{ automatic mode }
The operation principle of the image read-out 13 of second embodiment will be described below.At first, the operation principle of image read-out 13 in automatic mode described.
Referring to Figure 17, when manuscript is placed on 17 last times of manuscript feeding pallet, manuscript is depressed transducer 42, thereby transducer 42 detects manuscript.Subsequently, the image of manuscript is read in user's order, and CD-ROM drive motor 34 rotates to the direction shown in the arrow J then.When not having manuscript on the manuscript feeding pallet 17, even the image of manuscript is read in user's order, CD-ROM drive motor 34 does not rotate yet.
CD-ROM drive motor 34 driven wheels 49,51 and 54-60 rotate to the direction shown in the arrow of Figure 17 respectively.Be connected to locking component 38 on the driving shaft 35 with the directions rotation identical, be connected to the rib 43a that forms on the base frame 43 to stop (Fig. 9) up to locking component 38 with gear 54.Thereby locking component 38 breaks away from from feeder 28, thus release feeder 28.
When locking component 38 rotation, driving shaft 45 with 47 rotating with locking component 38 identical directions, thereby valve 46 is sent to the direction shown in the arrow D shown in Figure 17, the 19A and 20.When transparent region 46a arrived the image reading position 62 shown in Figure 16 B and 18, valve 46 was twined fully, can not send to equidirectional again.Thereby valve 46 can not be sent to the D direction, between driving shaft 45 and 47, keeps tensioning.Because load is applied on driving shaft 45 and 47, torque limiter 50 and 52 makes gear 49 and 51 rotate with the idle running mode, and valve 46 keeps tight.
In case feeder 28 releases, then the active force of spring 29 makes feeder 28 around axle 28a rotation, thereby manuscript closely contacts with feed rolls 22.Feed rolls 22 is feeding manuscript page by page from manuscript feeding pallet 17 towards delivery roll 23.Delivery roll 23 is further advanced to image reading position 62 (Figure 16 B) with manuscript.Paper-weight 27 is pressed against manuscript on the transparent guide device 61, thereby image reading section 105 reads the image of manuscript.
In case reading of manuscript image accomplished, then CD-ROM drive motor 34 under the control of control program temporarily to rotate with the opposite direction of J direction (Figure 17).Thereby driving shaft 45 and 47 rotates in the opposite direction, thereby valve 46 is sent to the E direction shown in Figure 17, the 19A and 20.Thereby transparent region 46a prevents that away from image reading position 62 image reading section 105 from reading manuscript.
{ manual mode }
To describe the operation principle of image read-out 13 in manual mode below, in this manual mode, the user is placed on the platform 20 manuscript to read the image of manuscript.
When the user is placed on 20 last times of platform with manuscript, transducer 42 detects closes less than manuscript and falp value 46.
In response to user's order, carriage 16 moves with constant speed with respect to manuscript on guide rail 16a.The image reading section 105 that is installed on the carriage 16 moves with carriage 16, reads in the image of the manuscript of standby on the platform 20 simultaneously.
The remainder of structure is worked in the same manner as in the first embodiment, saves its description.
As stated, second embodiment adopts falp value 46 to replace the valve 33 of first embodiment.Valve 46 moves, and makes transparent region 46a move to and reads the image reading section 105 and the gap between the transparent guide device 61 at 62 places, position or shift out this gap.When employing has the falp value 46 of little thickness, when image reading section 105 can have the valve 33 of big thickness than employing more near manuscript.
The 3rd embodiment
With the identical Reference numeral of first embodiment components identical mark, and save its description.Also omit the operation principle identical and the description of advantage with first embodiment.
Figure 21 A is the side cross-sectional view that illustrates the relevant portion of the image read-out 13 that is in automatic mode.Figure 21 B is the partial enlarged drawing that illustrates the position of the manuscript pressing plate 129 that is in manual mode.Figure 21 C is the partial enlarged drawing that illustrates the position of the manuscript pressing plate 129 that is in automatic mode.
Referring to Figure 21 A, platform scanner device 15 also comprise the position of detecting manuscript pressing plate 129 transducer 200, butt manuscript pressing plate 129 retainer 202 and towards the spring 201 of 202 pairs of manuscript pressing plate 129 application of forces of retainer.
Reflect white sheet 129a and be attached on the manuscript pressing plate 129, and stride entire image and read regional A extension, so that in manual mode, manuscript is pressed against on the platform 20.Reflect white sheet 129a extension and form the part except that reading position 62 among the regional A with overlay image, in automatic mode, image read-out reads the image that reads manuscript on the position 62 at this.
Transducer 200 comprises bar 200a, and this bar 200a engages manuscript pressing plate 129 to detect the position of manuscript pressing plate 129.Spring 201 always to manuscript pressing plate 129 towards retainer 202 application of forces, thereby manuscript pressing plate 129 butt retainer 202 in manual mode.On the P of position, bar 200a makes transducer 200 export " opening " signals, representes manuscript pressing plate 129 butt retainers 202 and is in standby.Thereby the controller (not shown) will not allow image read-out 13 with automatic mode operation.In case receive " opening " signal from transducer 200, controller just sends to order gives carriage 16 so that it moves towards some B shown in Figure 24, and at this B, the image of manuscript is read in image reading section 105 beginnings with manual mode.
The Q place in the position, bar 200a make transducer 200 outputs represent manuscript pressing plates 129 " closing " signal away from retainer 202.Thereby the controller (not shown) allows image read-out 13 with automatic mode operation.
Figure 22 is the perspective view that diagram is in the structure of the manuscript pressing plate 129 that the image read-out of manual mode uses.
Figure 23 diagram is from the position of the outstanding action bars 141 of manuscript pressing plate 129.
Figure 24 representes all places of carriage 16 in platform scanner device 15.
Shown in Figure 22 and 23, action bars 141 is discharged the opening 142 in the pallet 19 (Figure 24) and is extended to and cover 41 outside through being formed on, and lid 41 is sealed platform 20 and manuscript feed mechanism.Discharge pallet 19 and comprise projection 145, projection 145 has the skewed surface 143 and retainer surface 144 of a part that limits opening 142.Action bars 141 can move in opening 142, and spring 201 is towards 202 pairs of manuscript pressing plate 129 application of forces of retainer.To making action bars 141 climb up skewed surface 143 to the tractive of action bars 141, fall into opening 146 then to engage retainer surface 144 away from the direction of retainer 202.When action bars 141 fell into opening 146, manuscript pressing plate 129 was positioned, and made image read-out 13 ready for the work under the automatic mode.Action bars 141, opening 142, skewed surface 143, retainer surface 144, projection 145 and opening 146 constitute selection mechanism.
When the user is placed on 28 last times of feeder with one page or multipage manuscript, manuscript is depressed transducer 42 (Figure 21 A), and transducer 42 detects manuscript then.In automatic mode, in case receive the detection signal of transducer 42, carriage 16 just moves to position E from position H shown in Figure 24, the E place in the position, and image reading section 105 reads the image through the manuscript of image reading position 62 tops.Should be noted that image reading position 62 is in the image that is limited on the platform 20 and reads in the regional A.
In manual mode, the user operates action bars 141 so that action bars 141 breaks away from from retainer surface 144, thereby spring 201 is towards retainer 202 tractive manuscript pressing plates 129.
Thereby manuscript pressing plate 129 keeps engaging with retainer 202 butts.Thereby bar 200a is in position P (Figure 21 A, Figure 21 B), and reflects white sheet 129a between image reading position 62 and image reading section 105.In response to the output of transducer 200, the controller (not shown) makes that H moves to position B carriage 16 from the position, the B place in the position, and image read-out 13 waits for that the user sends the order of reading the manuscript on the platform 20.
Manuscript is placed on the image that is limited on the platform 20 when reading among the regional A the user, controller control carriage 16 strides across image from a B and reads regional A and move to a C.After point of arrival C, carriage 16 further advances to a G, slows down simultaneously.Thereafter, controller control carriage 16 turns back to initial position H.This has just accomplished reading of manuscript page or leaf image.
Table 1 has shown the output of transducer 200 and 203 and has been used to read the relation between the work of manuscript image.
Table 1
| Transducer 200 | " close " | " close " | " open " | " open " |
| Transducer 203 | " open " | " close " | " open " | " close " |
| Image reads | Automatic mode | There is not image to read | Manual mode | Manual mode |
When transducer 200 output " opening " signals, image read-out is ready to carry out image with manual mode and reads.When transducer 200 output " closing " signals and transducer 203 output " opening " signals, image read-out is prepared to carry out image with automatic mode and is read.
In the 3rd embodiment, the image that the image reading position 62 under the automatic mode (that is, shown in Figure 24 position E) is limited under the manual mode reads in the regional A.This makes that the overall dimension of scanner is less.The position of manuscript pressing plate 21 can manually be set, thereby through simple mechanism uniform light reflection is provided.
Although described the present invention above, obviously the present invention can be with many mode modification.These modification are not thought to depart from scope of the present invention, and it will be apparent to those skilled in the art that all this modification are included in the scope of claim.
Claims (10)
1. image read-out comprises:
Image reading section (105), said image reading section (105) reads the image of manuscript;
Sweep mechanism (16), when the manuscript standby, said sweep mechanism (16) makes image reading section (105) move with respect to manuscript;
Manuscript feed mechanism (23,27,61), when image reading section (105) standby, said manuscript feed mechanism (23,27,61) makes manuscript mobile with respect to image reading section (105);
Light-passing board (20), manuscript is gone up standby at said light-passing board (20) when image reading section moves with respect to manuscript, said light-passing board (20) be in the plane between said manuscript feed mechanism (23,27,61) and the said image reading section (105) and
Valve (33,46,129); Be in the plane between said manuscript feed mechanism (23,27,61) and the said light-passing board (20); When manuscript is mobile with respect to the image reading section (105) of standby; Said valve (33,46,129) can move to primary importance, and valve on primary importance (33,46,129) is opened window (101), allows said image reading section (105) to see through the image that window (101) reads manuscript; When manuscript when said light-passing board (20) is gone up standby and image reading section (105) and is moved with respect to the manuscript of standby; Said valve (33,46,129) can move to the second place; Valve on the second place (33,46,129) is closed said window; Do not allow said image reading section (105) to see through the image that window (101) reads manuscript, but said image reading section (105) can directly see through the image that said light-passing board (20) reads manuscript.
2. image read-out according to claim 1 is characterized in that, said manuscript feed mechanism (23,27,61) comprises CD-ROM drive motor (34), and
Wherein valve (33,46) is to move to the said primary importance or the said second place with said CD-ROM drive motor (34) interlocking relationship.
3. image read-out according to claim 2 is characterized in that, said valve (33) is formed by flaky material.
4. image read-out according to claim 2 is characterized in that, said valve (46) is formed by flexible sheet material.
5. image read-out according to claim 1 is characterized in that, when said manuscript in image reads the zone during standby, said sweep mechanism (16) makes image reading section (105) read at image and moves with respect to said manuscript in regional; And
Wherein, when said manuscript was mobile with respect to the image reading section (105) of standby, said image reading section (105) was positioned at said image and reads in the zone.
6. image read-out according to claim 5 is characterized in that, also comprises manuscript supporting member (20), and image reads zone (A) and is limited on the said manuscript supporting member (20); And
Wherein, said valve (129,433) extends with the mode that covers said image at least and read zone (A) and manuscript is pressed against on the said manuscript supporting member (20);
Wherein, when said image read-out (13) moved the pattern work of the image that reads manuscript with manuscript standby and said image reading section (105) with respect to said manuscript, manuscript was placed on said image and reads in the zone (A).
7. image read-out according to claim 6; It is characterized in that said pattern is first pattern, said image read-out also comprises selection mechanism (141-146); It is with the said first pattern work or with the second pattern work that said image read-out is selected in said selection mechanism (141-146); In said second pattern, manuscript moves with respect to the said image reading section (105) of standby, and said image reading section (105) sees through the image that window reads manuscript.
8. image read-out according to claim 6 is characterized in that, said manuscript feed mechanism comprises CD-ROM drive motor and said valve (129,433) as manuscript is pressed against the manuscript pressing plate on the manuscript supporting member,
Wherein this manuscript pressing plate (129,433) is to move to the said primary importance or the said second place with CD-ROM drive motor (34) interlocking relationship.
9. an image processing system is equipped with image read-out according to claim 1, and the manuscript image on the print media is printed, and this article manuscript base picture is read by above-mentioned image read-out.
10. an image formation system comprises the described image processing system of claim 9.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007208049A JP4486986B2 (en) | 2007-08-09 | 2007-08-09 | Image reading apparatus and image forming apparatus |
| JP2007208049 | 2007-08-09 | ||
| JP2007-208049 | 2007-08-09 | ||
| JP2008022883 | 2008-02-01 | ||
| JP2008-022883 | 2008-02-01 | ||
| JP2008022883A JP4521037B2 (en) | 2008-02-01 | 2008-02-01 | Image reading apparatus and composite apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101365037A CN101365037A (en) | 2009-02-11 |
| CN101365037B true CN101365037B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810129476XA Expired - Fee Related CN101365037B (en) | 2007-08-09 | 2008-07-31 | Image reading apparatus, image forming apparatus and image forming system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4486986B2 (en) |
| CN (1) | CN101365037B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4847556B2 (en) | 2009-05-19 | 2011-12-28 | 株式会社沖データ | Paper conveying apparatus, image reading apparatus, and image forming apparatus |
| US9342018B2 (en) * | 2013-05-17 | 2016-05-17 | Oki Data Corporation | Image forming apparatus with automatic size determination |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5323219A (en) * | 1992-04-10 | 1994-06-21 | Konica Corporation | Copying machine having an automatic document feeder with original positioning means |
| US5448340A (en) * | 1992-11-27 | 1995-09-05 | Mita Industrial Co., Ltd. | Image reading device with dual exposure modes |
| US5546168A (en) * | 1992-12-28 | 1996-08-13 | Canon Kabushiki Kaisha | Image forming apparatus with selective operation in document-fix reading mode and document-move reading mode |
| US5912747A (en) * | 1994-01-19 | 1999-06-15 | Minolta Co., Ltd. | Scanning device which scans a document in a reverse moving action |
-
2007
- 2007-08-09 JP JP2007208049A patent/JP4486986B2/en active Active
-
2008
- 2008-07-31 CN CN200810129476XA patent/CN101365037B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5323219A (en) * | 1992-04-10 | 1994-06-21 | Konica Corporation | Copying machine having an automatic document feeder with original positioning means |
| US5448340A (en) * | 1992-11-27 | 1995-09-05 | Mita Industrial Co., Ltd. | Image reading device with dual exposure modes |
| US5546168A (en) * | 1992-12-28 | 1996-08-13 | Canon Kabushiki Kaisha | Image forming apparatus with selective operation in document-fix reading mode and document-move reading mode |
| US5912747A (en) * | 1994-01-19 | 1999-06-15 | Minolta Co., Ltd. | Scanning device which scans a document in a reverse moving action |
Non-Patent Citations (2)
| Title |
|---|
| JP平1-311762A 1989.12.15 |
| JP特开平6-46219A 1994.02.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101365037A (en) | 2009-02-11 |
| JP4486986B2 (en) | 2010-06-23 |
| JP2009044521A (en) | 2009-02-26 |
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