JP3402974B2 - Flatbed printing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention transfers a pattern formed on a flat plate to the outer peripheral surface of a transfer cylinder (hereinafter referred to as "blanket cylinder"), and further transfers the pattern onto a printing medium. The flatbed printing press configured to
It can be applied to various printing machines such as an offset type, an intaglio type, and a letterpress type.

[0002]

2. Description of the Related Art FIG. 7 is a conceptual diagram illustrating a configuration example of a conventional flatbed offset printing press, FIG. 8 is a conceptual diagram illustrating a structural example of a flatbed offset printing press, and FIG. 9 is a general flatbed offset printing press. It is a conceptual diagram explaining the whole schematic structure. In a general flatbed offset printing machine, as shown in FIG. 9, a pair of left and right tracks 10a and 10b is laid on a pedestal 9, and a print medium 4 is placed between the pair of tracks 10a and 10b. A printing platen 5 and a printing platen 2 on which the printing plate 1 is mounted are arranged, and the printing platen 5 is formed by extending the printing platen 2.
An ink supply roller group 11 is arranged on the gantry 9 on the side opposite to the side (the right end in the figure). Also, the trajectories 10a, 10
On a traveling carriage 6 traveling on b, a blanket cylinder 3 and an inking roller 7 which are mounted so as to be able to move up and down are provided.

The blanket cylinder 3 and the inking roller 7 are rotatably supported by a lever 13, and the lever 13 is pivotally attached to a pair of frames 12a, 12b and 12a, 12b forming a traveling carriage 6, respectively. Has been done. A cam follower 14 that rolls on the guide surface is suspended below the levers 13a and 13b, and an air cylinder that lowers the inking roller 7 above the levers 13a and 13b to apply a pressing force. 15a and 15b are attached. The blanket cylinder 3 is supported by an eccentric bearing, and the eccentric bearing can be rotated by an air cylinder.

Under the above structure, when the traveling carriage 6 reciprocates on the tracks 10a and 10b by the ball screw 8 of the carriage traveling driving means, the ink is fed from the swing roller 16 of the ink supply roller group 11 to the ink forming roller 7 in the process. Ink A in the pool
Is transferred and supplied, and the ink A kneaded from the rocking roller 16
The inking roller 7 that has received the rotation advances to the printing plate surface 2 side while rotating as the traveling carriage 6 travels, and the cam followers 14 and 14 rolling on the guide surface enter the printing plate surface 2. Just before, it descends by the guide groove. Along with this, the inking roller 7 descends to a position where it comes into contact with the upper surface of the printing plate surface plate 2, and then the air cylinders 15a, 1
5b applies a printing pressure onto the printing plate 1 on the printing platen 2 to transfer the ink A. Then, after the blanket cylinder 3 descends and rolls on the plate 1, it moves to a position on the printing plate 4 on the printing platen 5 and rolls on the plate 4 to roll the printing plate 1.
The pattern received from is transferred to the printing medium 4.

After the operator has carried out the printing medium 4 on which printing has been completed, the operator carries in a new printing medium 4 and performs alignment (registration), and after the setting at the predetermined position is completed. , Start next printing. Thereafter, the same operation is sequentially repeated to print the desired number of sheets. As a typical example of the flatbed printing machine, as illustrated in FIG. 8A, in a process of transferring and supplying the ink A through the ink supply roller group 11, the ink is appropriately kneaded to form a predetermined ink film. There is a lithographic offset printing machine of a type in which after the formation, the ink A is transferred to the inking roller 7 via the swing roller 16 and the ink A is supplied to the printing plate 1 of the printing platen plate 2. Alternatively, FIG.
As illustrated in (b), there is a gravure offset printing machine of the type in which ink is directly supplied from the doctor 17 to the printing plate 1 of the printing plate surface plate 2 and the excess ink is scraped off by the doctor 17.
Further, FIG. 7 shows the most common one-color printing type having only one printing platen 2, one blanket cylinder 3 corresponding thereto, and one printing platen 5 on which the material to be printed 4 is placed. 1 shows a flatbed offset printing machine.

[0006]

However, in the above-described conventional flatbed printing machine, one printing plate surface plate 2, one blanket cylinder 3 corresponding to the printing platen surface, and the substrate 4 to be printed 1 are placed.
Since only the printing platen 5 of the base is provided, the time required for the replacement and replacement of the printing medium 4 with respect to the time required for the printing work (actual operating time), that is, the loading, unloading and alignment of the printing substrate 4. A large amount of time is spent on accompanying indirect work such as (registration), and there is a problem in that the printing capacity per sheet cannot be increased and the productivity cannot be improved. Generally, in ink supply, pattern transfer from the printing plate to the blanket cylinder, and printing, shortening the time by increasing the current rotation speed of the blanket cylinder leads to a decrease in aesthetic quality. It was difficult to shorten. Therefore, shortening of the indirect work time has been a target issue of increasing efficiency.

The present invention has been made in view of the above circumstances, and an object thereof is to reduce the indirect time ratio required for ancillary work and improve the operating rate in order to address the above problems. An object of the present invention is to provide a flatbed printing machine capable of performing the above.

[0008]

In order to solve the problems of the above-mentioned prior art, the present invention proposes a flatbed printing machine according to claims 1 to 6, and wastes other than actual transfer. Time is shortened, and one plate is reciprocally used for the traveling carriage so that the printing material on the other side can be carried out and carried in and the position (registration) can be adjusted in parallel during actual printing. This is a development of a printing machine configured to use the two provided blanket cylinders separately for forward and backward movements, respectively, and perform printing on a corresponding printing medium.

According to the present invention, since the flatbed printing machine has the above-mentioned structure, the ink can be continuously transferred to the plate surface, and immediately after that, the plate surface ink can be transferred to the blanket cylinder. Wasteful time other than transfer can be shortened, and a series of work related to replacement and replacement of printed materials such as loading, unloading and alignment (registration) of printing materials can be performed simultaneously or in parallel with some printing operations. The printing time per sheet can be greatly shortened, and the productivity can be improved.

In addition to the above, according to the present invention, as a means for coping with a problem caused by using one plate in a reciprocating manner, different blanket cylinders share the pattern transfer at the time of forward and backward, In addition, printing is performed on an object to be printed that is located downstream in the traveling direction of the traveling carriage (blanket cylinder), so there is no risk of image transfer deviations on the outer peripheral surface of the blanket cylinder due to backlash of the drive system, etc. Can be printed.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail based on the embodiments shown in FIGS. Here, FIG. 1 is a conceptual diagram illustrating a structural example (first example) of a flatbed offset printing press according to an embodiment of the present invention, and FIG. 2 is a concept illustrating an operating state of the flatbed offset printing press in FIG. Figure,
3 is a conceptual diagram illustrating a structural example (second example) of the flatbed offset printing press according to the embodiment of the present invention, and FIG.
FIG. 5 is a conceptual diagram for explaining an operating state of the flatbed offset printing press in FIG. 5, FIG.
FIG. 6 is a conceptual diagram for explaining a system example of the ink supply means.

The flatbed offset printing machine according to the embodiment of the present invention comprises a single printing platen plate 2 on which a flat plate 1 is mounted, an ink supply means R for supplying ink to the printing plate 1 and a cover. Two printing surface plates 5a on which the printing bodies 4a and 4b are placed,
5b respectively. And blanket body 3
The a and 3b and the ink supply means R can be reciprocally moved in the printing direction via the traveling carriage 6, and can be attached to and detached from each surface plate 2 or 5 at a required position. Based on the above structure, the configuration, operation, and effect of the flatbed offset printing machine according to the embodiment of the present invention will be described below.

(First Embodiment) As shown in FIG. 1, a flatbed offset printing machine according to a first embodiment of the present invention is positioned before and after a printing platen 2 on which a printing plate 1 is mounted. ,
A set of printing surface plates 5 on which the printed materials 4 are placed are provided, and the ink supply means R and the printed materials 4a, 4a,
Two sets of blanket cylinders 3a and 3b corresponding to 4b are provided. The ink supply means R is arranged between the front and rear blanket cylinders 3a and 3b.

In the flatbed offset printing machine having the above structure, after the ink is applied onto the printing plate 1 through the ink supply means R as an initial state, the traveling carriage 6 is moved to the left side in the drawing as shown in FIG. 2 (a). By moving and moving the blanket cylinder 3a downwardly onto the printing plate 1, the pattern is transferred to the outer peripheral surface of the blanket cylinder 3a, and the blanket cylinder 3a is rolled while being brought into contact with the object to be printed 4a. Move it and transfer the pattern on the outer surface. While the blanket cylinder 3a is following the ink on the plate 1 while transferring the ink, the ink supply means R reapplies the ink on the plate 1 and then moves up to stand by at a predetermined position.

After the predetermined printing is completed on the printing medium 4a through the blanket cylinder 3a, the traveling carriage 6 travels to the right side (in the direction of the arrow) in the figure, as shown in FIG. 2B.
The pattern of the printing plate 1 is transferred to the outer peripheral surface of the lowered blanket cylinder 3b, and the ink supply means R is lowered to apply the ink for the next printing onto the printing plate 1. After that, the ink supply means R is raised and made to stand by. As shown in FIG. 2C, the blanket cylinder 3b transfers the pattern onto the material 4b to be printed by the traveling movement of the traveling carriage 6, and after the predetermined printing is completed, the blanket cylinder 3b is raised to a predetermined position and made to stand by. To be

Subsequently, as shown in FIG. 2 (d), the traveling carriage 6 is moved to the left side (the direction of the arrow) in the figure, and the lowered blanket cylinder 3a is brought into contact with the printing plate 1 to bring the blanket cylinder 3a into contact therewith. The pattern of the printing plate 1 is transferred to the outer peripheral surface of the printing plate 1, and the ink supply means R is lowered to apply the ink for the next printing onto the printing plate 1. After that, ink supply means R
Is raised and made to wait. By repeating the same operation thereafter, each of the printing materials 4 adhered to both sides of the printing plate 1
Printing can be performed alternately on a and 4b.

This printing machine is capable of printing on different printed materials 4 when the traveling carriage 6 travels back and forth, and since there is little time loss for traveling movement,
Productivity can be improved. In addition, it is equipped with blanket cylinders 3a and 3b which correspond to the respective printed bodies 4a and 4b mounted on the front side and the rear side of the plate 1, and are moved from the plate 1 by moving to the left side in the drawing. To the blanket cylinder 3a,
Further, the pattern is set to be transferred to the printing medium 4a, and the pattern is set to be transferred from the plate 1 to the blanket cylinder 3b and further to the printing medium 4b by moving to the right side in the drawing. Therefore, a back-and-forth positional displacement due to backlash or the like generated in the traveling drive means of the traveling carriage 6 does not occur, and an error is eliminated, so that high-quality printing can be performed. In addition, one side of the printing plate 1, for example, the printed body 4a on the other side, which has completed printing, can be replaced and replaced during printing on the printed body 4a, and the operating rate can be greatly improved.

(Second Embodiment) In the flatbed offset printing machine of the present embodiment, as shown in FIG. 3, after the printing is completed on the first printing material (left side in the drawing) 4a, the second printing material is printed. Four
When the printing carriage 1 is moved to a position where ink is supplied to the printing plate 1 for printing on the sheet b, or an operation for receiving a pattern from the printing plate 1 to the second printing object 4b is started, In the printing platen 5a, the gap dimension S between the printing plate platen 2 and the printing platen 5a or 5b has a positional relationship such that the printing-completed body 4a can be taken out without being obstructed by the traveling carriage 6.
Is set. In the flatbed offset printing machine according to the second embodiment, the printing plate surface plate 2 on which the printing plate 1 is mounted is also used.
1 set of printing platens 5 placed on the front and the back of the printing medium 4 respectively, on which the printing medium 4 is placed, and two sets corresponding to the ink supply means R and the printing mediums 4a and 4b on the traveling carriage 6. The blanket cylinders 3a and 3b are provided, and the basic configuration of the flatbed offset printing machine is the same as that of the first embodiment shown in FIG.

In the flatbed offset printing machine having the above-described structure, the printing medium 4a or the printing medium 4 on which the traveling carriage 6 has completed printing is printed.
Immediately after passing over b, it is possible to immediately perform preparations for a series of next printings, such as taking out the printing medium 4 and carrying in and positioning (registering) the next printing medium. Since it can be taken for a long time, the operator can have a margin.

The embodiment (not shown) of the present invention according to claim 3 proposes a position control means for the printing platen 5 on which the material to be printed 4 is placed.・ Y ・
Q, that is, the fine adjustment can be performed in the front-back direction, the lateral width direction, and the horizontal turning direction of the device via the register device even during operation. In the embodiment of the present invention, a servomotor or the like is incorporated at least as a moving means for the printing platen 5 in the printing direction (front-back direction), and control is performed in relation to the movement (position) of the traveling carriage 6. Is
Each printing platen 5 is capable of accurately correcting the position even during operation in accordance with the characteristics of the corresponding blanket cylinder 3.

Next, an embodiment (not shown) of the present invention according to claim 4 is one in which a servomotor or the like is incorporated in each of the blanket cylinders 3a, 3b provided on the traveling carriage 6,
Based on the printing direction position of the printing plate surface plate 2 or the printing surface plate 5, a necessary correction (fine adjustment) such as a rotational phase position at which the blanket cylinder 3 engages can be accurately performed even during operation. ing. These claims 3 and 4
With this configuration, it is possible to reliably correct the positional deviation between the printing medium 4 and the blanket cylinder 3 during registration, and it is possible to perform clear high-quality printing.

The embodiments of the present invention according to claims 5 and 6 propose an example of operation control of the flatbed offset printing press. As shown in FIG. 4 (a), the control device of claim 5 finishes printing on the printing object 4 a by the blanket cylinder 3 a as the traveling carriage 6 advances, raises the blanket cylinder 3 a, and As shown in (a), the traveling traveling speed of the traveling carriage 6 that is reversed is increased, and the speed is reduced from immediately before the blanket cylinder 3b for the printing object 4b is engaged with the plate 1 at the central position to the normal printing speed. is doing. In FIG. 4A, the relationship between the speeds Vo and V is Vo <V.

After that, the traveling carriage 6 is moved to the right side in the figure at the set speed (reverse), ink is applied to the printing plate 1 through the ink supply means R, and the ink supply means R is raised and then again. The traveling speed of the traveling carriage 6 is increased so that the blanket cylinder 3b is decelerated to a normal printing speed immediately before the blanket cylinder 3b is engaged with the printing medium 4b. Also, the blanket cylinder 3
After the printing on the printing object 4b is completed at b, the traveling carriage 6
When the vehicle is traveling in reverse (forward), the traveling speed is controlled to be increased in the direction opposite to that in the backward traveling.
As described above, the traveling time of the traveling carriage 6 when the blanket cylinder 3 and the ink supply means R are not operated can be shortened by moving the traveling carriage 6 in an accelerated / decelerated manner, and productivity is improved. Can be planned.

On the other hand, in the sixth aspect, as shown in (a) or (b) of FIG. 4B, the traveling state of the traveling carriage 6 can be controlled. Normally, in flatbed offset printing machines, in order to perform more stable and reliable printing,
In many cases, the pattern is repeatedly transferred to the same substrate 4 a plurality of times. As a means for this, in FIG. 4B, (a), the traveling carriage 6 is reciprocated over the entire area of the pedestal 9 in the printing direction. 4B is a method of performing printing, and FIG. 4B shows that after the printing on one side is completed, the traveling carriage 6 is reciprocated to one side before or after the gantry 9 in the printing direction including the printing plate 1. Similarly, a control device for controlling to perform printing on the other printing medium 4 is provided. This method is particularly applicable to FIG.
By combining and setting with the control device shown in
There is an advantage that the printing time per sheet can be further shortened. Further, according to the drive control of the traveling carriage 6 shown in (b) of FIG. 4B, a sufficient working time can be obtained when replacing and exchanging the printing target 4 on the non-operating side. An example of the arrangement of the blanket cylinder 3 and the ink supply means R provided on the traveling carriage 6 is shown in FIG.

In the arrangement example of FIG. 5A, one set of ink supply means R is arranged at an intermediate position between the blanket cylinders 3a and 3b, and after the ink is supplied from the ink supply means R to the plate 1. , The patterns are alternately transferred to the blanket cylinders 3a and 3b at both ends. On the other hand, FIG.
In the arrangement example of FIG. 2, two sets of ink supply means R, which correspond respectively to the blanket cylinders 3a and 3b, are arranged at both ends, and the ink supply means is provided while the traveling carriage 6 is traveling leftward in the drawing. After supplying the ink from Ra to the printing plate 1, the pattern is transferred to the blanket cylinder 3a, and the ink is supplied from the ink supplying means Rb to the printing plate 1 in the course of moving the traveling carriage 6 to the right side in the figure, and then the blanket. It is configured to transfer the design to the body 3b. The patterns transferred to the outer peripheral surfaces of the blanket cylinders 3a and 3b are printed on the printing medium 4 located downstream of the traveling carriage 6 in the traveling direction.
It is exclusively transferred to and printing is completed.

In this system, two sets of ink supply means R are structurally provided.
However, it is difficult to replace the blanket cylinder 3 due to the provision of the ink jet printer. However, it is possible to transfer the pattern to the blanket cylinders 3a and 3b immediately after the ink is supplied (applied) onto the printing plate 1. This has the advantage that the unevenness of ink density is reduced.

Further, FIG. 6 shows an example of the system of the ink supply means R, and FIG. 6 (a) shows the ink from the ink reservoir via the ink supply roller group 11 to the inking roller 7a,
It is a system in which it is transferred to 7b and further supplied onto the printing plate 1. 6B is a gravure system in which ink is supplied onto the printing plate 1 through the doctor 17 and excess ink is scraped by the doctor 17, and one set of doctors 17 is installed, or one point is installed. As shown by the chain line, two sets of doctors 17a,
17b is provided and selectively used depending on the traveling direction of the traveling carriage 6. In addition, there are various types of ink supply means other than those exemplified, such as a letterpress type and an intaglio type printer.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and is based on the technical idea of the present invention without departing from the scope of the present invention. Various modifications and changes are possible. For example, it is also possible to use a flatbed printing machine configured by appropriately combining some or all of the configurations of claims 1 to 6.

[0029]

As described above, in the flatbed printing machine according to the present invention, one printing plate surface plate, one blanket cylinder corresponding thereto, and only one printing surface plate on which the material to be printed are placed are combined. The conventional flatbed printing machine has the following configuration. (1) One printing plate is used twice in the reciprocating motion of a traveling carriage equipped with two blanket cylinders, and a dedicated blanket cylinder is made to correspond (engage) with each other during forward movement and backward movement. (2) Printing is performed on the printing medium located downstream in the traveling direction of the blanket cylinder to which the pattern is transferred from the printing plate, that is,
Two blanket cylinders are used separately for printing on the corresponding printing medium in the forward direction and the reverse direction. (3) The printing platen can be moved in the T, Y, and Q directions, and the rotation phase of the blanket cylinder can be adjusted during operation. (4) The traveling speed of the traveling carriage is increased in a region where the ink supply means and the blanket cylinder are not in contact with each other. (5) The traveling range of the traveling carriage is controlled so that printing can be performed a plurality of times on the entire frame or only on the front side or the rear side including the printing plate.

According to the present invention, since the flatbed printing machine is configured and controlled as described above, the ratio of the indirect time required for loading, unloading and alignment (registration) of the material to be printed to the actual printing time is greatly reduced. Can be made. That is, (a) It is possible to perform the replacement and replacement work of the printing material on the other side in parallel with the time during the printing operation. (B) During operation, the slight deviation of the pattern transfer due to the tailoring state of the blanket cylinder differs for each blanket cylinder, but fine adjustment can be made for this. (C) It is possible to reduce unnecessary time when the traveling vehicle is not operating. With these functions, the time required for printing per sheet can be shortened, and the productivity can be greatly improved.

(D) Since separate blanket cylinders for forward (forward) and backward (reverse) are prepared, there is no risk of error due to rolling deviation between forward and reverse due to backlash of the drive system. , High-precision printing is now possible. (E) By adopting a blanket cylinder for exclusive use, it is possible to solve the problem of sharing the normal and reverse rotation directions. That is, the effect of backlash, that is, when a pattern shifted on the blanket cylinder is transferred to the printing object, an unclear image transfer occurs. However, according to the present invention, it is possible to prevent such a clear printing object. Is obtained. The properties of the blanket cylinder are not always the same in the normal rotation and the reverse rotation, and transfer deviation of the pattern occurs, but according to the present invention, this can be prevented, so that a clear printing material can be obtained.

[Brief description of drawings]

FIG. 1 is a conceptual diagram illustrating a structure of a flatbed offset printing press according to a first embodiment of the present invention, FIG.
Is a plan view thereof, and (b) is a side view thereof.

FIG. 2 is a conceptual diagram illustrating an operating state of the flatbed offset printing machine in FIG. 1, and (a) and (b) are side views thereof.

FIG. 3 is a conceptual diagram illustrating the structure of a flatbed offset printing press according to a second embodiment of the present invention, FIG.
Is a plan view thereof, and (b) is a side view thereof.

4A and 4B are conceptual diagrams illustrating an operating state of the flatbed offset printing machine in FIG. 3, in which FIG. 4A is a side view thereof, and FIG.
[Fig. 3] is a travel range diagram of a traveling vehicle.

FIG. 5 is a conceptual diagram illustrating an arrangement example of a blanket cylinder and an ink supply unit provided in the traveling carriage according to the embodiment of the present invention, and (a) and (b) are side views thereof.

FIG. 6 is a conceptual diagram illustrating a system example of an ink supply unit according to an embodiment of the present invention, and (a) and (b) are side views thereof.

FIG. 7 is a conceptual diagram illustrating a configuration example of a conventional flatbed offset printing machine, in which (a) is a plan view and (b) is a side view thereof.

FIG. 8 is a conceptual diagram illustrating a structural example of a flatbed offset printing machine, and (a) and (b) are side views thereof.

FIG. 9 is a conceptual diagram illustrating an example of the overall schematic configuration of a general flatbed offset printing machine, in which (a) is a side view thereof,
(B) is the front view, (c) is the enlarged side view.

[Explanation of symbols]

1 printing plate 2 Printing plate 3 blanket body 4 Printed material 5 Printing surface plate 6 traveling cart 7 Inking roller 8 Ball screw (carrying drive means) 9 mounts 10 orbits 11 Ink supply roller group 12 frames 13 lever 14 Kamufoloa 15 Air cylinder 16 rocking rollers 17 Doctor R ink supply means S Surface plate gap size

Claims (6)

(57) [Claims] 1. A flatbed printing machine for forming a pattern on a flat plate, transferring the pattern to an outer peripheral surface of a transfer cylinder provided on a traveling carriage, and further transferring the pattern onto a printing medium. A printing platen on which the material to be printed is placed is arranged on each of the front and rear sides of one printing plate platen, and two transfer cylinders are provided on the traveling carriage to correspond to each printing platen. One side receives a pattern from the printing plate when the traveling carriage moves forward, and the other side of the transfer cylinder receives the pattern from the printing plate when the traveling carriage moves backward, and transfers the pattern from each transfer cylinder to a corresponding printing medium. A flatbed printing press characterized by being configured as described above. 2. The ink is supplied to the printing plate when printing on the second printing material after the printing on the first printing material is completed so that the gap between the printing plate surface plate and the printing surface plate is completed. Or when the traveling carriage is moved from the printing plate to a position where the operation for receiving the pattern is received from the printing plate to the second printing medium, the printing medium that has been printed on the first printing platen is not obstructed by the traveling carriage. The flatbed printing machine according to claim 1, wherein the positional relationship is set so that the flatbed printing machine can be taken out. 3. Each printing surface plate on which the substrate to be printed is placed,
The flatbed printing machine according to claim 1 or 2, further comprising an adjusting device capable of finely adjusting the front-rear direction, the lateral width direction, and the horizontal turning direction of the device during operation. 4. The transfer cylinder is equipped with a phase control device that is driven by a servomotor or the like, and that performs necessary correction of the engagement phase position and the like on the printing platen and the printing platen. The flatbed printing machine according to claim 1 or 2. 5. A control device for increasing the traveling speed of the traveling carriage is provided at a position where neither the transfer cylinder nor the ink supply means engages with the printing plate surface plate or the printing surface plate. Claims 1 to 4 characterized
The flatbed printing machine according to any one of 1. 6. The printing range of the traveling carriage is set to selectively carry out a plurality of repetitive printings on front and rear sides of the printing plate surface plate, and on a front side or a rear side of the printing plate surface plate. The flatbed printing machine according to any one of claims 1 to 5, further comprising a control device capable of performing the control.