JP2017156724A - Image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image forming apparatus that can suppress deterioration of an adhesive forming an image to which a foil is transferred.SOLUTION: An image forming apparatus comprises: a first photoconductor drum 51A that is provided with respect to a first storage part storing an adhesive; a second photoconductor drum 51B that is provided with respect to a second storage part storing a black toner; a plurality of photoconductor drums 51C that are provided with respect to a plurality of respective third storage parts storing toners other than the black toner; a first developing roller 53A that supplies an adhesive to an electrostatic latent image on the first photoconductor drum 51A to form an adhesive image; a second developing roller 53B that supplies a black toner to an electrostatic latent image on the second photoconductor drum 51B to form a black toner image; a plurality of third developing rollers 53C that supply toners other than the black toner to electrostatic latent images on the third photoconductor drums 51C to form toner images other than the black toner image; a transfer member; a fixing unit; a foil transfer part; and a separation mechanism that separates the first developing roller 53A and first photoconductor drum 51A from each other.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an image forming apparatus including a foil transfer unit.

  Conventionally, in an image forming apparatus, a toner image forming unit that forms a toner image and an adhesive image on a sheet, and a foil of gold, silver, white, or the like is transferred to an adhesive image on the sheet formed by the toner image forming unit. What is provided with the foil transfer unit is known (for example, refer patent document 1). The toner image forming unit includes five storage units, a developing roller and a photosensitive drum corresponding to each storage unit. The five toner accommodating portions accommodate black, yellow, magenta, cyan, and foil adhesives.

JP 2012-215836 A

  However, the above-described technique has a problem in that even when the foil is not transferred, the developing roller and the photosensitive drum corresponding to the accommodating portion for accommodating the adhesive rotate, so that the adhesive deteriorates.

  Therefore, an object of the present invention is to provide an image forming apparatus capable of suppressing deterioration of an adhesive that forms an image to which a foil is transferred.

In order to achieve the above-described object, an image forming apparatus according to the present invention includes a first storage unit that stores an adhesive made of powder that has adhesiveness to a foil, and a second storage unit that stores black toner. A plurality of third accommodating portions for accommodating toner other than black, a first photosensitive drum provided corresponding to the first accommodating portion and forming an electrostatic latent image, and provided corresponding to the second accommodating portion. And a plurality of third photosensitive drums provided corresponding to the second photosensitive drums on which the electrostatic latent images are formed, and the plurality of third accommodating portions, respectively, and the first photosensitive drums. A first developing roller that contacts the drum and supplies an adhesive to the electrostatic latent image on the first photosensitive drum to form an adhesive image; and a second photosensitive drum that contacts the second photosensitive drum. A second developing roller that supplies black toner to the electrostatic latent image to form a black toner image, and each third photosensitive drum A plurality of third developing rollers that are provided correspondingly and that contact the third photosensitive drum and supply toner other than black to the electrostatic latent image on the third photosensitive drum to form a toner image other than black; A transfer member that transfers the adhesive image and the toner image to the sheet; an adhesive image that is provided on the downstream side of the first photosensitive drum, the second photosensitive drum, and the third photosensitive drum in the sheet conveyance direction; A fixing unit that heat-fixes the toner image on the sheet, a foil transfer unit that bonds the foil to the adhesive image by bringing the foil into contact with the adhesive image of the sheet and heating the adhesive image, and a separation mechanism. Prepare.
The separation mechanism separates the first developing roller and the first photosensitive drum.

  According to the image forming apparatus configured as described above, the first developing roller and the first photosensitive drum can be separated when the foil is not transferred. As a result, it is possible to suppress deterioration of the adhesive that forms the image to which the foil is transferred.

In order to achieve the above-described object, an image forming apparatus according to the present invention includes a first storage unit that stores an adhesive made of powder that has adhesiveness to a foil, and a second storage unit that stores black toner. A plurality of third accommodating portions for accommodating toner other than black, a first photosensitive drum provided corresponding to the first accommodating portion and forming an electrostatic latent image, and provided corresponding to the second accommodating portion. And a plurality of third photosensitive drums provided corresponding to the second photosensitive drums on which the electrostatic latent images are formed, and the plurality of third accommodating portions, respectively, and the first photosensitive drums. A first developing roller that forms an adhesive image by supplying an adhesive to the electrostatic latent image on the drum, and a black toner image is formed by supplying black toner to the electrostatic latent image on the second photosensitive drum. And a second developing roller for each of the third photosensitive drums. A plurality of third developing rollers that form a toner image other than black by supplying the toner, a belt that contacts the first photosensitive drum, the second photosensitive drum, and the third photosensitive drum, and foil on the adhesive image of the sheet A foil transfer unit that bonds the foil to the adhesive image by heating the adhesive image by contacting the adhesive image and a separation mechanism are provided.
The separation mechanism separates the first photosensitive drum and the belt.

  According to the image forming apparatus configured as described above, the first photosensitive drum and the belt can be separated when the foil is not transferred. As a result, it is possible to suppress deterioration of the adhesive that forms the image to which the foil is transferred.

In order to achieve the above-described object, an image forming apparatus according to the present invention includes a first storage unit that stores an adhesive made of powder that has adhesiveness to a foil, and a second storage unit that stores black toner. A plurality of third accommodating portions for accommodating toner other than black, a first photosensitive drum provided corresponding to the first accommodating portion and forming an electrostatic latent image, and provided corresponding to the second accommodating portion. And a plurality of third photosensitive drums provided corresponding to the second photosensitive drums on which the electrostatic latent images are formed, and the plurality of third accommodating portions, respectively, and the first photosensitive drums. A first developing roller that forms an adhesive image by supplying an adhesive to the electrostatic latent image on the first photosensitive drum in a state of being separated from the drum, and a second photosensitive drum in a state of being separated from the second photosensitive drum. A second developing roller that supplies black toner to the upper electrostatic latent image to form a black toner image; A plurality of third developing rollers for supplying a non-black toner to the electrostatic latent image on the third photosensitive drum in a state of being separated from the third photosensitive drum, and a sheet adhesive A foil transfer unit that contacts the foil with the image and heats the adhesive image to bond the foil to the adhesive image.
Then, the image forming apparatus stops driving the first developing roller when the foil is not transferred.

  According to the image forming apparatus configured as described above, since the first developing roller is stopped when the foil is not transferred, deterioration of the adhesive that forms the image to which the foil is transferred can be suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, deterioration of the adhesive agent which forms the image which transfers foil can be suppressed.

1 is a diagram illustrating a schematic configuration of a color printer according to a first embodiment. FIG. 4A is a diagram illustrating all photosensitive drums, all cartridges, and a separation mechanism, and is a diagram illustrating a state when the linear cam is in the first position, and a state when the linear cam is in the second position. FIG. FIG. 4A is a diagram illustrating all photosensitive drums, all cartridges, and a separation mechanism, and is a diagram illustrating a state when the linear cam is in the fourth position, and a state when the linear cam is in the fifth position. FIG. It is a flowchart which shows the control action of a control part. FIG. 6A is a diagram illustrating all photosensitive drums, all cartridges, and a separation mechanism in the second embodiment, and is a diagram illustrating a state when the linear cam is in the first position, and FIG. FIG. 5B is a diagram showing a state when the linear motion cam is located, and FIG. 6C is a diagram showing a state when the linear motion cam is in the second position. FIG. 4A is a diagram illustrating all photosensitive drums, all cartridges, and a separation mechanism, and is a diagram illustrating a state when the linear cam is in the fourth position, and a state when the linear cam is in the fifth position. FIG. It is a flowchart which shows the control action of a control part. It is a map which shows the relationship between the combination of each flag, and the position of a linear motion cam. FIG. 10A is a diagram illustrating all the photosensitive drums, all the cartridges, and the separation mechanism in the third embodiment, and is a diagram illustrating a state where the linear cam is in the second position, and FIG. (B) which shows a state when it exists in FIG. 5, (c) which shows a state when a linear motion cam exists in a 5th position. It is a figure which shows all the photosensitive drums in a 4th embodiment, all the cartridges, and a control part, Comprising: The figure (a) which shows the state at the time of performing color printing and foil printing, Color printing is performed, and foil printing is performed (B) showing a state when there is no printing, (c) showing a state when performing monochrome printing and foil printing, and (d) showing a state when performing monochrome printing and no foil printing. is there. It is a figure which shows the modification of a color printer.

[First Embodiment]
Next, a first embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the following description, the description will be made with reference to the user who uses the color printer 1. That is, the right side in FIG. 1 is “front”, the left side is “rear”, the front side is “left”, and the back side is “right”. Also, the vertical direction in FIG.

  As shown in FIG. 1, the color printer 1 as an example of an image forming apparatus mainly includes a housing 10, a paper feeding unit 30, a toner image forming unit 40, and a foil transfer unit 90.

  A discharge tray 11 on which a sheet S as an example of a sheet discharged outside the apparatus is placed is provided on the upper portion of the housing 10. Specifically, the housing 10 includes a top cover 12 as an example of a cover that covers an upper portion of the apparatus. The discharge tray 11 is provided on the top cover 12.

  The paper feeding unit 30 is provided in the lower part of the housing 10. The paper supply unit 30 includes a paper storage unit 31 as an example of a sheet storage unit and a paper supply mechanism 32. The paper storage unit 31 stores the paper S. The paper feed mechanism 32 includes a paper feed roller and the like, and conveys the paper S stored in the paper storage unit 31 to the toner image forming unit 40. In the present embodiment, the paper feed mechanism 32 transports the paper S stored in the paper storage unit 31 forward, then transports it diagonally forward, and then transports it diagonally upward rearward. Therefore, the transport direction of the paper S in the paper storage unit 31 is the front-rear direction.

  The toner image forming unit 40 includes five LED units 5, five cartridges 50, five photosensitive drums 51, a charger (not shown), a transfer unit 70, and a fixing device 80.

  The five LED units 5 are provided corresponding to the five photosensitive drums 51, respectively. Each LED unit 5 is disposed to face the corresponding photosensitive drum 51. The LED unit 5 exposes the surface of the photosensitive drum 51 by blinking the light emitting unit based on the image data, and the photosensitive drum 51. An electrostatic latent image is formed thereon.

  The five cartridges 50 are arranged in parallel in the front-rear direction. The five cartridges 50 include a first cartridge 50A, a second cartridge 50B, and three (plural) third cartridges 50C.

  The first cartridge 50A has a first accommodating portion 52A and a first developing roller 53A. The first storage portion 52A stores an adhesive. The adhesive is made of a powder having adhesiveness to the foil. In this embodiment, the adhesive melts when heated and adheres to the foil when melted. The first developing roller 53A is in contact with the first photosensitive drum 51A and supplies an adhesive to the electrostatic latent image on the first photosensitive drum 51A to form an adhesive image.

  The second cartridge 50B has a second accommodating portion 52B and a second developing roller 53B. The second storage unit 52B stores black toner. The second developing roller 53B contacts the second photosensitive drum 51B and supplies black toner to the electrostatic latent image on the second photosensitive drum 51B to form a black toner image.

  The third cartridge 50C has a third housing portion 52C and a third developing roller 53C. The three third storage units 52C store toners other than black, specifically, yellow, magenta, and cyan toners. The three third developing rollers 53C are provided corresponding to the third photosensitive drums 51C, and contact the third photosensitive drums 51C to supply toner other than black to the electrostatic latent image on the third photosensitive drums 51C. Thus, a toner image other than black is formed.

  The five photosensitive drums 51 include a first photosensitive drum 51A provided corresponding to the first accommodating portion 52A, a second photosensitive drum 51B provided corresponding to the second accommodating portion 52B, and three third accommodating portions 52C. And three third photosensitive drums 51C provided corresponding to each of the above.

  The transfer unit 70 is provided between the paper feeding unit 30 and the five photosensitive drums 51 in the vertical direction. The transfer unit 70 includes a driving roller 71, a driven roller 72, a conveyance belt 73, and five transfer rollers 74 as an example of a transfer member.

  The driving roller 71 and the driven roller 72 are disposed above and in parallel with the front side of the paper storage unit 31. The conveyor belt 73 is an endless belt. The conveyor belt 73 is wound around the driving roller 71 and the driven roller 72 and is stretched between the driving roller 71 and the driven roller 72. The outer surface of the conveyor belt 73 faces each photosensitive drum 51 from below. The conveyor belt 73 is disposed above the sheet storage unit 31 and is configured to convey the sheet S supplied from the sheet feeding unit 30 from the front to the back on the surface facing the photosensitive drum 51.

  In addition, five transfer rollers 74 that sandwich the conveyor belt 73 between the photosensitive drums 51 are arranged inside the conveyor belt 73 so as to face the photosensitive drums 51. The transfer roller 74 is applied with a transfer bias, and transfers the adhesive image on the first photosensitive drum 51A and the toner image on the second photosensitive drum 51B or the third photosensitive drum 51C to the paper S.

  The fixing device 80 is provided downstream of the first photosensitive drum 51A, the second photosensitive drum 51B, and the third photosensitive drum 51C in the transport direction of the paper S. The fixing device 80 mainly includes a heating roller 81 and a pressure roller 82 that is disposed opposite to the heating roller 81 and presses the heating roller 81, so that the sheet S passes between the heating roller 81 and the pressure roller 82. Is provided.

  In the toner image forming unit 40, first, the surface of each photosensitive drum 51 is uniformly charged by a charger and then exposed by the LED unit 5. As a result, the exposed portion of the electric charge is removed, and electrostatic latent images based on the image data are formed on the first photosensitive drum 51A, the second photosensitive drum 51B, and the third photosensitive drum 51C. Thereafter, the first developing roller 53A supplies an adhesive to the electrostatic latent image on the first photosensitive drum 51A. Then, an adhesive image is formed on the first photosensitive drum 51A. The second developing roller 53B supplies black toner to the electrostatic latent image on the second photosensitive drum 51B. Then, a black toner image is formed on the second photosensitive drum 51B. The third developing roller 53C supplies toner other than black to the electrostatic latent image on the third photosensitive drum 51C. Then, a toner image other than black is formed on the third photosensitive drum 51C.

  Next, the sheet S supplied on the conveyance belt 73 passes between each photosensitive drum 51 and each transfer roller 74. At this time, the first photosensitive drum 51A, the second photosensitive drum 51B, and the third photosensitive drum 51C come into contact with the sheet S conveyed by the conveying belt 73, so that the adhesive image formed on each photosensitive drum 51 and The toner image is transferred onto the paper S. Then, the fixing device 80 heat-fixes the adhesive image and the toner image transferred onto the paper S to the paper S.

  The foil transfer unit 90 is provided above the fixing device 80. The foil transfer unit 90 includes a first reel 91, a second reel 92, and a foil transfer unit 93.

  The first reel 91 is wound with a foil tape F having a foil before being transferred. The foil tape F has a foil layer formed on a tape-like support. The second reel 92 is disposed above the first reel 91. The second reel 92 is a reel that winds up the foil tape F that has passed through the foil transfer portion 93.

  The foil transfer unit 93 includes a first foil transfer roller 93A and a second foil transfer roller 93B that is disposed to face the first foil transfer roller 93A and presses the first foil transfer roller 93A. The first foil transfer roller 93A is heated by a heat source (not shown). The temperature of the first foil transfer roller 93A is set to a temperature at which the adhesive melts but the toner does not melt. The first foil transfer roller 93A and the second foil transfer roller 93B sandwich the foil tape F wound between the first reel 91 and the second reel 92. The foil transfer unit 93 is configured to convey the foil on the foil tape F in contact with the surface on which the adhesive image of the paper S sent out from the fixing device 80 is formed. Thereby, the foil transfer part 93 transfers foil to an adhesive agent image by heating an adhesive agent image.

  The paper S sent out from the foil transfer unit 90 is discharged to the discharge tray 11 by the paper discharge roller 13.

Next, a specific configuration around the toner image forming unit 40 will be described.
The first photosensitive drum 51 </ b> A, the second photosensitive drum 51 </ b> B, and the third photosensitive drum 51 </ b> C are disposed above the paper storage unit 31. In addition, the first photosensitive drum 51A, the second photosensitive drum 51B, and the third photosensitive drum 51C are arranged along the transport direction of the paper S from the upstream side of the transport direction of the paper S, the three third photosensitive drums 51C, the second photosensitive drum 51C. The drum 51B and the first photosensitive drum 51A are arranged in this order.

  The first cartridge 50A is smaller than the second cartridge 50B and smaller than the third cartridge 50C. Specifically, the first cartridge 50A is smaller in the vertical direction than the second cartridge 50B and the third cartridge 50C. The upper end of the first cartridge 50A is provided at a position lower than the upper end of the second cartridge 50B, and is provided at a position lower than the upper end of the third cartridge 50C. Thus, the housing 10 can be downsized by reducing the size of the first cartridge 50A that is not frequently used.

  The top cover 12 is disposed above the transport belt 73, more specifically, above the five cartridges 50. The top cover 12 has an inclined portion 12A that is inclined so as to be positioned downward toward the downstream side of the conveyance belt 73 in the conveyance direction of the paper S, that is, the rear side, at a portion disposed on the front side of the paper discharge roller 13. doing.

  The first cartridge 50A is located below the inclined portion 12A. Specifically, the first cartridge 50A is disposed under the lower portion of the rear portion of the inclined portion 12A. Thus, the housing 10 can be downsized by disposing the first cartridge 50A smaller than the other cartridges 50B and 50C under the inclined portion 12A.

  The color printer 1 includes a duct 14 and a fan 15 for discharging the air around the fixing device 80 to the outside of the apparatus. The duct 14 is provided between the first cartridge 50A located on the most downstream side in the transport direction of the paper S and the fixing device 80, and extends in the left-right direction. The fan 15 is provided on the right side wall 16 of the housing 10 on the right side of the duct 14. The fan 15 is configured to suck the air in the duct 14 and discharge it outside the housing 10.

  The first cartridge 50A is disposed closer to the duct 14 than the second cartridge 50B and the third cartridge 50C. Thus, by arranging the first cartridge 50A smaller than the other cartridges 50B and 50C at a position close to the duct 14, the first cartridge 50A can be arranged even if the space around the duct 14 is small. As a result, the space in the housing 10 can be used without waste.

  As shown in FIG. 2A, the color printer 1 includes a separation mechanism 100 and a control unit 200 that controls the separation mechanism 100.

  The separation mechanism 100 is a mechanism that separates the first developing roller 53A and the first photosensitive drum 51A, the second developing roller 53B and the second photosensitive drum 51B, and the third developing roller 53C and the third photosensitive drum 51C. The separation mechanism 100 includes a linear cam 300, a gear 110, and a motor M.

  The linear cam 300 is disposed at a position facing the five cartridges 50 in the left-right direction. The linear cam 300 is a plate-like member that is long in the front-rear direction, and is supported so as to be slidable in the front-rear direction with respect to the housing 10. Further, the linear cam 300 has gear teeth (not shown) that mesh with the gear 110 at the rear end. The linear cam 300 is located at a first position (position shown in FIG. 2A), a second position located rearward of the first position (position shown in FIG. 2B), and rearward of the second position. It is possible to move between a fourth position (position shown in FIG. 3A) and a fifth position located behind the fourth position (position shown in FIG. 3B).

  The linear cam 300 has a first cam portion 310, a second cam portion 320, and three third cam portions 330 on the surface facing the cartridge 50. Each of the cam portions 310, 320, and 330 is formed in a rib shape. Further, each of the cartridges 50A, 50B, and 50C has a boss 54 on a side surface facing the linear motion cam 300.

  As shown in FIGS. 2A and 2B and FIGS. 3A and 3B, the first cam portion 310 includes a first horizontal portion 311 extending in the front-rear direction and a front end of the first horizontal portion 311. It has an inclined portion 312 that extends obliquely upward in the front direction and a second horizontal portion 313 that extends forward from the upper end of the inclined portion 312. The first horizontal portion 311 is provided so as to be disposed under the boss 54 of the first cartridge 50A when the linear cam 300 is located at the first position. The first horizontal portion 311 is provided at a position where the first developing roller 53A can contact the first photosensitive drum 51A when positioned below the boss 54 of the first cartridge 50A. The second horizontal portion 313 is provided so as to contact the boss 54 of the first cartridge 50A when the linear cam 300 is located at the second position, the fourth position, and the fifth position.

  The second cam portion 320 is provided at a position facing the second cartridge 50B. The second cam portion 320 includes a first horizontal portion 321 extending in the front-rear direction, an inclined portion 322 extending obliquely upward and forward from the front end of the first horizontal portion 321, and a second horizontal portion 323 extending forward from the upper end of the inclined portion 322. And have. The first horizontal portion 321 is provided so as to be disposed under the boss 54 of the second cartridge 50B when the linear cam 300 is located at the first position, the second position, and the fourth position. The first horizontal portion 321 is provided at a position where the second developing roller 53B can contact the second photosensitive drum 51B when positioned below the boss 54 of the second cartridge 50B. The second horizontal portion 323 is provided so as to be able to contact the boss 54 of the first cartridge 50A when the linear cam 300 is located at the fifth position.

  The three third cam portions 330 are respectively provided at positions facing the third cartridge 50C. The third cam portion 330 includes a first horizontal portion 331 that extends in the front-rear direction, an inclined portion 332 that extends obliquely upward from the front end of the first horizontal portion 331, and a second horizontal portion 333 that extends forward from the upper end of the inclined portion 332. And have. The first horizontal portion 331 is provided so as to be disposed under the boss 54 of the third cartridge 50C when the linear motion cam 300 is located at the first position and the second position. The first horizontal portion 331 is provided at a position where the third developing roller 53C can come into contact with the third photosensitive drum 51C when positioned below the boss 54 of the third cartridge 50C. The second horizontal portion 333 is provided so as to be able to contact the boss 54 of the third cartridge 50C when the linear cam 300 is located at the fourth position and the fifth position.

  The gear 110 is rotatably supported by the housing 10. The gear 110 is provided to rotate when a driving force is input from the motor M.

  The control unit 200 includes a CPU, a RAM, a ROM, an input / output interface (not shown), and the like, and executes control based on print data input from a personal computer, a preset program, and the like. Note that while the color printer 1 is turned on, the control unit 200 periodically receives print data.

  The control unit 200 is configured to control the motor M to move the linear cam 300 between the first position, the second position, the fourth position, and the fifth position.

  The control unit 200 is configured to determine whether to perform color printing or monochrome printing, and to determine whether to perform foil printing to transfer the foil. Specifically, it is configured to determine whether the print data includes black image data, metal color image data, and color image data. For example, the control unit 200 expands the print data into bitmap data, and determines whether or not black dots, dots corresponding to metal colors, and dots of colors other than black and metal colors are included. When the dot corresponding to the metal color is included, the control unit 200 determines that the received print data includes the metal color image data. In addition, when the dots of colors other than black and metal colors are included, the control unit 200 determines that the received print data includes color image data.

  Then, the control unit 200 determines to perform foil printing when the received print data includes image data of a metal color. When the received print data includes color image data, the control unit 200 determines to perform color printing. When the received print data does not include color image data, the control unit 200 determines to perform monochrome printing. .

  When determining that the color printing and the foil printing are to be performed, the control unit 200 positions the linear cam 300 at the first position. When the control unit 200 performs color printing and determines not to perform foil printing, the control unit 200 positions the linear cam 300 at the second position. When the control unit 200 performs monochrome printing and determines that foil printing is not performed, that is, when only black image data is included in the print data, the linear cam 300 is positioned at the fourth position. Moreover, the control part 200 positions the linear cam 300 in a 5th position after performing printing.

An example of the processing of the control unit 200 configured as described above will be described with reference to the flowchart of FIG.
When receiving the print data, the control unit 200 executes the program according to the flowchart shown in FIG.

  When receiving the print data, the control unit 200 determines whether or not the print data includes metal color image data (S3).

  If it is determined in step S3 that the print data includes metal color image data (S3, Yes), the control unit 200 moves the linear cam 300 to the first position (S4).

  If it is determined in step S3 that the print data does not include metal color image data (S3, No), the control unit 200 determines whether the print data includes color image data. (S5).

  If it is determined in step S5 that the print data includes color image data (S5, Yes), the control unit 200 moves the linear cam 300 to the second position (S6).

  If it is determined in step S5 that the print data does not include color image data (S5, No), the control unit 200 moves the linear cam 300 to the fourth position (S7).

  After moving the linear cam 300 in steps S4, S6, and S7, the control unit 200 executes printing (S8). After executing printing, the control unit 200 moves the linear cam 300 to the fifth position (S2) and ends the control.

The operation and effect of the color printer 1 configured as described above will be described.
When the print data includes metallic color image data and color image data, the linear cam 300 moves to the first position as shown in FIG. When the linear cam 300 is in the first position, the first horizontal portions 311, 321, 331 of the cam portions 310, 320, 330 are located under the bosses 54 of the cartridges 50 </ b> A, 50 </ b> B, 50 </ b> C. Thereby, the first developing roller 53A and the first photosensitive drum 51A, the second developing roller 53B and the second photosensitive drum 51B, and the third developing roller 53C and the third photosensitive drum 51C are in contact with each other. Then, an adhesive or toner is supplied from the developing rollers 53A, 53B, and 53C to the corresponding photosensitive drums 51A, 51B, and 51C.

  When the print data does not include metal color image data but includes color image data, the linear cam 300 moves to the second position as shown in FIG. For example, when the linear cam 300 moves from the first position to the second position, the inclined portion 312 of the first cam portion 310 pushes up the boss 54 of the first cartridge 50A. When the linear cam 300 is in the second position, the second horizontal portion 313 of the first cam portion 310 contacts the boss 54 of the first cartridge 50A from below. As a result, the first developing roller 53A and the first photosensitive drum 51A are separated from each other. On the other hand, when the linear motion cam 300 is in the second position, the second cam portion 320 and the third cam portion 330 have the first horizontal portions 321 and 331 positioned below the bosses 54 of the cartridges 50B and 50C. Yes. Therefore, the second developing roller 53B and the second photosensitive drum 51B and the third developing roller 53C and the third photosensitive drum 51C are in contact with each other. Thus, toner is supplied from the second developing roller 53B and the third developing roller 53C to the second photosensitive drum 51B and the third photosensitive drum 51C.

  If the print data contains neither metal color image data nor color image data, that is, if the print data contains only black image data, as shown in FIG. The linear cam 300 moves to the fourth position. At this time, the second horizontal portion 313 of the first cam portion 310 contacts the boss 54 of the first cartridge 50A from below. As a result, the first developing roller 53A and the first photosensitive drum 51A are separated from each other. Further, for example, when the linear motion cam 300 moves from the third position to the fourth position, the inclined portion 332 of the third cam portion 330 pushes up the boss 54 of the third cartridge 50C. When the linear cam 300 is in the fourth position, the second horizontal portion 333 of the third cam portion 330 contacts the boss 54 of the third cartridge 50C from below. As a result, the third developing roller 53C and the third photosensitive drum 51C are separated from each other. On the other hand, when the linear cam 300 is in the fourth position, the second horizontal portion 321 of the second cam portion 320 is located below the boss 54 of the second cartridge 50B. Therefore, the second developing roller 53B and the second photosensitive drum 51B are in contact with each other. As a result, black toner is supplied from the second developing roller 53B to the second photosensitive drum 51B.

  Thus, in this embodiment, when foil printing is not performed, the first developing roller 53A that is not used and the first photosensitive drum 51A are separated from each other. Thereby, deterioration of an adhesive agent can be suppressed.

  In the present embodiment, when monochrome printing is performed, the third developing roller 53C that is not used and the third photosensitive drum 51C are separated from each other. Thereby, deterioration of toner other than black can be suppressed.

  When the printing is completed, the linear cam 300 moves to the fifth position as shown in FIG. At this time, the inclined portion 322 of the second cam portion 320 pushes up the boss 54 of the second cartridge 50B. When the linear cam 300 is in the fifth position, the second horizontal portions 313, 323, 333 of the cam portions 310, 320, 330 contact the bosses 54 of the cartridges 50A, 50B, 50C from below. As a result, the first developing roller 53A and the first photosensitive drum 51A, the second developing roller 53B and the second photosensitive drum 51B, and the third developing roller 53C and the third photosensitive drum 51C are separated from each other.

  As described above, when the printing is completed, all the developing rollers 53A, 53B, and 53C are separated from the photosensitive drums 51A, 51B, and 51C, so that deterioration of the adhesive and the toner when the warming operation is performed after that is performed. Can be suppressed.

[Second Embodiment]
Next, a second embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the present embodiment, the linear cam 300 is configured to be movable also to a third position (position in FIG. 5B) that is a position in front of the first position. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIGS. 5A to 5C and FIGS. 6A and 6B, the linear cam 300 has a first position (position shown in FIG. 5A) and a second position (FIG. 5B). c), a third position, a fourth position (position of FIG. 6A), and a fifth position (position of FIG. 6B).

  As shown in FIG. 5B, the first horizontal portion 311A of the first cam portion 310A extends rearward longer than the first horizontal portion 311 in the first embodiment, and the linear cam 300 is located at the third position. In this case, the first cartridge 50A is formed so as to be positioned below the boss 54.

  The first horizontal portion 321A of the second cam portion 320A extends rearwardly longer than the first horizontal portion 321 in the first embodiment, and the second cartridge 50B also has the second cartridge 50B when the linear cam 300 is located at the third position. It is formed so as to be located under the boss 54.

  Each of the third cam portions 330A includes a second inclined portion 334 that extends rearward and obliquely upward from the rear end of the first horizontal portion 331, and a third horizontal portion 335 that extends rearward from the upper end of the second inclined portion 334. doing. The third horizontal portion 335 is provided so as to come into contact with the boss 54 of the third cartridge 50C when the linear cam 300 is located at the third position.

  When the print data includes only black image data and metal color image data, the control unit 200 determines to perform monochrome printing and foil printing. When the control unit 200 determines to perform monochrome printing and foil printing, the controller 200 is configured to position the linear cam 300 at the third position.

Specifically, as shown in FIG. 7, the control unit 200, in step S3, the print data, if it is determined that contains image data of the metallic color (S3, Yes), the first flag F _M 1 (S31). On the other hand, the control unit 200, in step S3, the print data, if it is determined that the information does not include an image data of the metallic color (S3, No), the first flag _{F M} is zero (S32). Incidentally, the first flag F _M, when the power of the color printer 1 is turned from OFF to ON is set to zero. The first flag _{F M} is, for example, is stored in the RAM.

Step S31, S32 after setting the first flag _{F M,} control unit 200, the print data to determine whether it contains the color image data (S5). In step S5, the print data, if it is determined that contains color image data (S5, Yes), the control unit 200, a second flag _{F C} and 1 (S51). On the other hand, in step S5, when it is determined that the print data does not include color image data (S5, No), the control unit 200 sets the second flag _{F C} is zero (S52). Note that the second flag F _C is when the power of the color printer 1 is turned from OFF to ON is set to zero. The second flag _{F C} is stored in, for example, the RAM.

Then, the control unit 200, based on the first flag _{F M} and the second flag _{F C,} moves the translation cam 300 (S9), and executes printing (S8). After executing printing, the control unit 200 moves the linear cam 300 to the fifth position (S2) and ends the control.

Here, the control unit 200 stores a map as shown in FIG. 8 in the ROM, and in step S9, the position of the linear cam 300 is set with reference to this map. This map is a first flag _{F M} is 1, and when the second flag _{F C} is 1, sets the position of the translation cam 300 in the first position, the first flag _{F M} is 1 and, when the second flag F _C is zero, and is configured to set the position of the translation cam 300 in the third position. Also, the map is a first flag F _M is zero, and when the second flag F _C is 1, sets the position of the translation cam 300 in the second position, the first flag F _M is zero There, and, when the second flag F _C is zero, and is configured to set the position of the translation cam 300 in the fourth position.

In the second embodiment, the print data, if it contains the image data and the metallic color image data of the color, the first flag F _M becomes 1, the second flag F _C is 1, FIG. 5 ( As shown in a), the linear cam 300 moves to the first position. Therefore, all the developing rollers 53A, 53B, and 53C come into contact with the corresponding photosensitive drums 51A, 51B, and 51C. As a result, the adhesive or toner is supplied from the developing rollers 53A, 53B, and 53C to the corresponding photosensitive drums 51A, 51B, and 51C.

The print data, if only the image data and the metallic color image data of black is included, the first flag F _M and the second flag F _C are both 1, as shown in FIG. 5 (b), The linear cam 300 moves to the third position. For example, when the linear cam 300 moves from the first position to the third position, the second inclined portion 334 of the third cam portion 330 pushes up the boss 54 of the third cartridge 50C. When the linear cam 300 is in the third position, the third horizontal portion 335 of the third cam portion 330 contacts the boss 54 of the third cartridge 50C from below. As a result, the third developing roller 53C and the third photosensitive drum 51C are separated from each other. On the other hand, when the linear cam 300 is in the third position, the first horizontal portion 311A of the first cam portion 310A is located below the boss 54 of the first cartridge 50A, and the first horizontal portion of the second cam portion 320A. 321A is located under the boss 54 of the second cartridge 50B. Therefore, the first developing roller 53A and the first photosensitive drum 51A and the second developing roller 53B and the second photosensitive drum 51B come into contact with each other. As a result, the adhesive is supplied from the first developing roller 53A to the first photosensitive drum 51A, and the black toner is supplied from the second developing roller 53B to the second photosensitive drum 51B.

  As described above, when monochrome printing and foil printing are performed, the unused third developing roller 53C is separated from the third photosensitive drum 51C. Thereby, deterioration of toner other than black can be suppressed.

The print data is not included in the image data of the metallic color, if it contains the image data of the color, the first flag F _M is zero, because the second flag F _C is 1, and FIG. 5 (c) As shown, the linear cam 300 moves to the second position. Therefore, the first developing roller 53A and the first photosensitive drum 51A are separated from each other. On the other hand, the second developing roller 53B and the second photosensitive drum 51B and the third developing roller 53C and the third photosensitive drum 51C come into contact with each other. As a result, black toner is supplied from the second developing roller 53B to the second photosensitive drum 51B, and toner other than black is supplied from the third developing roller 53C to the third photosensitive drum 51C.

The print data, if the image data of the metallic color even not included color image data, the first flag F _M and the second flag F _C are both zero, as shown in FIG. 6 (a), a straight The moving cam 300 moves to the fourth position. Therefore, the first developing roller 53A and the first photosensitive drum 51A and the third developing roller 53C and the third photosensitive drum 51C are separated from each other. On the other hand, the second developing roller 53B and the second photosensitive drum 51B come into contact with each other. As a result, black toner is supplied from the second developing roller 53B to the second photosensitive drum 51B.

  When printing is completed, the linear cam 300 moves to the fifth position as shown in FIG. As a result, the first developing roller 53A and the first photosensitive drum 51A, the second developing roller 53B and the second photosensitive drum 51B, and the third developing roller 53C and the third photosensitive drum 51C are separated from each other.

[Third Embodiment]
Next, a third embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the present embodiment, the separation mechanism 100 is configured to separate the first photosensitive drum 51 </ b> A from the conveyance belt 73. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 9A, the first cartridge 50A supports the first photosensitive drum 51A. The second cartridge 50B supports the second photosensitive drum 51B. The third cartridge 50C supports the third photosensitive drum 51C.

  When the linear cam 300 is in the first position, it brings all the photosensitive drums 51 into contact with the transport belt 73 (see FIG. 2A).

  When the linear cam 300 is in the second position, the first photosensitive drum 51 </ b> A is separated from the transport belt 73. Further, the linear cam 300 brings the second photosensitive drum 51 </ b> B and the third photosensitive drum 51 </ b> C into contact with the conveyance belt 73 when in the second position. As described above, when the adhesive is not used, the deterioration of the adhesive can be suppressed by separating the first photosensitive drum 51 </ b> A from the transport belt 73.

  As shown in FIG. 9B, the linear cam 300 separates the first photosensitive drum 51 </ b> A and the third photosensitive drum 51 </ b> C from the transport belt 73 when in the fourth position. On the other hand, the linear cam 300 brings the second photosensitive drum 51 </ b> B into contact with the transport belt 73 when in the fourth position. As described above, when the toner other than the adhesive and black is not used, the first photosensitive drum 51A and the third photosensitive drum 51C are separated from the conveyance belt 73, thereby suppressing deterioration of the toner other than the adhesive and black. Can do.

  Then, as shown in FIG. 9C, the linear motion cam 300 separates all the photosensitive drums 51 </ b> A, 51 </ b> B, 51 </ b> C from the conveying belt 73 when in the fifth position. As described above, after the printing is completed, the photosensitive drums 51A, 51B, and 51C are separated from the conveyance belt 73, so that it is possible to suppress deterioration of the adhesive and the toner in the subsequent warming operation or the like.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In this embodiment, when the foil is not transferred, the driving of the first developing roller 53A is stopped. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 10A, the first developing roller 53A supplies an adhesive to the electrostatic latent image on the first photosensitive drum 51A in a state of being separated from the first photosensitive drum 51A, thereby generating an adhesive image. It is provided to form. The second developing roller 53B is provided to supply black toner to the electrostatic latent image on the second photosensitive drum 51B to form a black toner image in a state of being separated from the second photosensitive drum 51B. . The third developing roller 53C is provided so as to form a toner image other than black on the electrostatic latent image on the third photosensitive drum 51C while being separated from the third photosensitive drum 51C.

  The controller 200 is configured to control the rotation / stop of the first developing roller 53A, the second developing roller 53B, and the third developing roller 53C. For example, if a motor for driving the first developing roller 53A, a motor for driving the second developing roller 53B, and a motor for driving the third developing roller 53C are provided, the control unit 200 controls these motors. It may be configured. The motor, a transmission mechanism that transmits the driving force of the motor to the first developing roller 53A, a transmission mechanism that transmits the driving force of the motor to the second developing roller 53B, and the driving force of the motor to the third developing roller 53C. In the case where a transmission mechanism for transmission is provided, the control unit 200 may be configured to control each transmission mechanism.

  When the control unit 200 determines that color printing and foil printing are to be performed, the control unit 200 rotates all the developing rollers 53A, 53B, and 53C.

  When it is determined that the color printing is performed and the foil printing is not performed, the control unit 200 rotationally drives the second developing roller 53B and the third developing roller 53C as illustrated in FIG. Further, the control unit 200 stops driving the first developing roller 53A. Thereby, deterioration of the adhesive which is not used for printing can be suppressed.

  When it is determined that monochrome printing and foil printing are to be performed, the control unit 200 rotationally drives the first developing roller 53A and the second developing roller 53B as illustrated in FIG. Further, the control unit 200 stops driving the third developing roller 53C. Thereby, it is possible to suppress deterioration of toner other than black that is not used for printing.

  When the control unit 200 performs monochrome printing and determines not to perform foil printing, the control unit 200 rotationally drives the second developing roller 53B as illustrated in FIG. The control unit 200 stops driving the first developing roller 53A and the third developing roller 53C. As a result, it is possible to suppress deterioration of an adhesive that is not used for printing and toner other than black.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment. About a concrete structure, it can change suitably in the range which does not deviate from the meaning of this invention. In addition, about the component similar to the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the first embodiment and the second embodiment, the control unit 200 has positioned the linear cam 300 at the first position or the third position when the print data includes image data of metal color. The configuration of the control unit is not limited to this. For example, the control unit determines whether or not there is an area designation for transferring the foil in the print data, and if there is an area designation for transferring the foil in the print data, the control cam 300 is moved to the first position or the third position. You may be comprised so that it may be located in a position.

  Here, the area designation will be described. In this embodiment, on the screen of a device that transmits print data, such as a personal computer, an area in which the foil is transferred to the image in the enclosed area by surrounding a part of the image to be printed by a user operation. You can specify. When transmitting the print data, the apparatus that transmits the print data also transmits the coordinate data in which the area is specified. When receiving the coordinate data, the control unit 200 determines that there is an area designation for transferring the foil in the print data. And the control part 200 forms the dot other than white which exists in the range which coordinate data shows, using an adhesive agent.

  The control unit may be configured to position the linear cam 300 at the first position or the third position when the print data includes the foil layer data.

  Specifically, on the screen of a device that transmits print data, such as a personal computer, foil layer data having only image data to transfer the foil and toner image layer data having only image data to which the foil is not transferred are created. be able to. Then, a device such as a personal computer transmits the created layer data as print data to the control unit. Then, the control unit determines whether or not the print data includes foil layer data. If the print data includes foil layer data, the control unit determines to perform foil printing.

  In the embodiment, the transfer roller 74 is exemplified as the transfer member, but the transfer member is not limited to this. For example, as shown in FIG. 11, the transfer member may be a secondary transfer roller 75.

  Specifically, the transfer unit 70B includes a driving roller 71, a driven roller 72, an intermediate transfer belt 73B, five transfer rollers 74, and a secondary transfer roller 75 as an example of a transfer member.

  The driving roller 71 and the driven roller 72 are disposed above the photosensitive drums 51A, 51B, 51C. The driven roller 72 is disposed in front of the drive roller 71. The intermediate transfer belt 73B is provided above the sheet storage unit 31, more specifically, above the photosensitive drums 51A, 51B, and 51C. The intermediate transfer belt 73 </ b> B is wound around the driving roller 71 and the driven roller 72 and is stretched between the driving roller 71 and the driven roller 72. The intermediate transfer belt 73B has an outer surface in contact with each photosensitive drum 51, and a transfer roller 74 is disposed inside the intermediate transfer belt 73B so as to sandwich the intermediate transfer belt 73B with the photosensitive drum 51. Further, the intermediate transfer belt 73 </ b> B conveys the paper S supplied from the paper supply unit 30 toward the fixing device 80 with the secondary transfer roller 75. The secondary transfer roller 75 is provided on the rear side of the drive roller 71, and is disposed to face the drive roller 71 via the intermediate transfer belt 73B. The secondary transfer roller 75 is applied with a transfer bias.

  The adhesive image or toner image formed on each photosensitive drum 51 is sequentially superimposed on the intermediate transfer belt 73B. The sheet S conveyed from the sheet feeding unit 30 is conveyed between the intermediate transfer belt 73B and the secondary transfer roller 75, so that the adhesive image and the toner image on the intermediate transfer belt 73B are transferred to the sheet S. Transcribed. Thereafter, the sheet S passes through the fixing device 80, whereby the adhesive image and the toner image are thermally fixed.

  Also in this color printer 1B, a separation mechanism 100 and a control unit 200 are provided. When performing color printing and foil printing, the linear motion cam 300 moves to the first position so that all the developing rollers 53A, 53B, and 53C come into contact with the corresponding photosensitive drums 51A, 51B, and 51C. When color printing is performed and foil printing is not performed, the first developing roller 53A and the first photosensitive drum 51A are separated by moving the linear cam 300 to the second position. When monochrome printing is performed but foil printing is not performed, the first cam 53A and the first photosensitive drum 51A and the third developing roller 53C and the third photosensitive drum 51C are moved by the linear motion cam 300 moving to the fourth position. Separate. When print data is not received, the linear motion cam 300 moves to the fifth position, so that all the developing rollers 53A, 53B, and 53C are separated from the photosensitive drums 51A, 51B, and 51C.

  In the color printer 1B, the first cartridge 50A, the second cartridge 50B, and the third cartridge 50C are arranged below the intermediate transfer belt 73B along the conveyance direction of the sheet S in the sheet storage unit 31, that is, the front-rear direction. Yes. The first cartridge 50A, the second cartridge 50B, and the third cartridge 50C are arranged in the order of the second cartridge 50B, the three third cartridges 50C, and the first cartridge 50A from the front. That is, the first cartridge 50A is provided at a position closer to the secondary transfer roller 75 than the second cartridge 50B and the third cartridge 50C.

  The first cartridge 50A is smaller in the arrangement direction of the first cartridge 50A, the second cartridge 50B, and the third cartridge 50C, that is, in the front-rear direction, than in the front-rear direction of the second cartridge 50B. It is smaller than the size of the cartridge 50C in the front-rear direction. Thereby, size reduction of the front-back direction of the housing | casing 10 is possible.

  The photosensitive drums 51A, 51B, 51C and the cartridges 50A, 50B, 50C may be arranged above the intermediate transfer belt 73B along the front-rear direction.

  In the embodiment, the surface of the photosensitive drum 51 is exposed by the LED unit 5, but the apparatus for exposing the surface of the photosensitive drum 51 is not limited to this. For example, the surface of the photosensitive drum 51 is exposed by laser light. An exposure apparatus may be used.

  In the embodiment, the fixing device 80 includes the heating roller 81 and the pressure roller 82, but the configuration of the fixing device is not limited to this. For example, the fixing device may include a heating unit having a halogen heater, a fixing belt, a nip plate, and the like, and a pressure roller that sandwiches the paper S between the heating unit.

DESCRIPTION OF SYMBOLS 1 Color printer 51A 1st photosensitive drum 51B 2nd photosensitive drum 51C 3rd photosensitive drum 52A 1st accommodating part 52B 2nd accommodating part 52C 3rd accommodating part 53A 1st developing roller 53B 2nd developing roller 53C 3rd developing roller 74 Transfer Roller 80 Fixing device 93 Foil transfer part 100 Separation mechanism S Paper

Claims (16)

A first housing portion for housing an adhesive made of powder having adhesiveness to the foil;
A second containing portion for containing black toner;
A plurality of third storage portions for storing toner other than black;
A first photosensitive drum provided corresponding to the first housing portion and forming an electrostatic latent image;
A second photosensitive drum which is provided corresponding to the second housing portion and forms an electrostatic latent image;
A plurality of third photosensitive drums provided corresponding to each of the plurality of third accommodating portions and forming an electrostatic latent image;
A first developing roller that contacts the first photosensitive drum and supplies an adhesive to the electrostatic latent image on the first photosensitive drum to form an adhesive image;
A second developing roller in contact with the second photosensitive drum and supplying black toner to the electrostatic latent image on the second photosensitive drum to form a black toner image;
A non-black toner image is formed by supplying toner other than black to the electrostatic latent image on the third photosensitive drum provided in correspondence with each third photosensitive drum and in contact with the third photosensitive drum. A plurality of third developing rollers,
A transfer member for transferring the adhesive image and the toner image to a sheet;
A fixing device provided on the downstream side of the first photosensitive drum, the second photosensitive drum, and the third photosensitive drum in the sheet conveyance direction, and thermally fixing the adhesive image and the toner image transferred to the sheet to the sheet;
A foil transfer portion for transferring the foil to the adhesive image by contacting the foil with the adhesive image of the sheet and heating the adhesive image;
An image forming apparatus comprising: a separation mechanism that separates the first developing roller and the first photosensitive drum. A first cartridge having the first housing portion and the first developing roller;
The separation mechanism has a linear cam,
The image forming apparatus according to claim 1, wherein the linear cam includes a first cam portion that can contact a part of the first cartridge. A second cartridge having the second housing portion and the second developing roller;
A plurality of third cartridges having the third housing portion and the third developing roller,
The linear motion cam has a second cam portion that can contact a part of the second cartridge, and a third cam portion that can contact a part of the third cartridge. , Movable between a third position, a fourth position and a fifth position;
The linear cam is
When in the first position, the first developing roller and the first photosensitive drum, the second developing roller and the second photosensitive drum, the third developing roller and the third photosensitive drum are brought into contact with each other,
When in the second position, the second developing roller, the second photosensitive drum, the third developing roller, and the third photosensitive drum are brought into contact with each other, and the first developing roller and the first photosensitive drum are separated from each other. Let
When in the third position, the first developing roller, the first photosensitive drum, the second developing roller, and the second photosensitive drum are brought into contact with each other, and the third developing roller and the third photosensitive drum are respectively brought into contact with each other. Spaced apart,
When in the fourth position, the second developing roller and the second photosensitive drum are brought into contact with each other, and the first developing roller, the first photosensitive drum, the third developing roller, and the third photosensitive drum are separated from each other. Let
When in the fifth position, the first developing roller and the first photosensitive drum, the second developing roller and the second photosensitive drum, and the third developing roller and the photosensitive drum are separated from each other. The image forming apparatus according to claim 2, wherein the image forming apparatus is an image forming apparatus. A control unit for controlling the separation mechanism;
The controller determines whether to perform color printing or monochrome printing, determines whether to perform foil printing to transfer the foil, and determines that color printing and foil printing are to be performed. The image forming apparatus according to claim 3, wherein a cam is positioned at the first position.   The image forming apparatus according to claim 4, wherein when the control unit performs color printing and determines not to perform foil printing, the control unit positions the linear cam at the second position.   6. The image forming apparatus according to claim 4, wherein when the control unit determines to perform monochrome printing and foil printing, the control unit positions the linear cam at the third position.   The control unit according to any one of claims 4 to 6, wherein when the monochrome printing is performed and it is determined that the foil printing is not performed, the linear cam is positioned at the fourth position. The image forming apparatus described.   The control unit determines whether the print data includes black image data, metal color image data, and color image data, and the print data includes only black image data and metal color image data. Is included, the linear cam is positioned at the third position, and if only black image data is included in the print data, the linear cam is positioned at the fourth position. The image forming apparatus according to claim 7.   The controller determines whether or not there is an area designation for transferring the foil in the print data, and if there is an area designation for transferring the foil in the print data, the linear motion cam is moved to the first position or the third position. 8. The image forming apparatus according to claim 4, wherein the image forming apparatus is positioned at a position.   The control unit determines whether or not the print data includes foil layer data having only an image to which the foil is transferred, and when the print data includes the foil layer data, the linear motion cam is moved to the first position or The image forming apparatus according to claim 4, wherein the image forming apparatus is located at a third position.   The image forming apparatus according to claim 3, wherein the first cartridge is smaller than the second cartridge and smaller than the third cartridge. A duct for discharging the air around the fixing device to the outside of the machine;
The image forming apparatus according to claim 11, wherein the first cartridge is disposed at a position closer to the duct than the second cartridge and the third cartridge. A sheet accommodating portion for accommodating the sheet;
A conveying belt disposed above the sheet accommodating portion and conveying the sheet;
A discharge tray on which sheets discharged outside the apparatus are placed,
The first photosensitive drum, the second photosensitive drum, and the third photosensitive drum are brought into contact with the sheet conveyed by the conveying belt, so that the adhesive image and the toner image are transferred to the sheet.
The first photosensitive drum, the second photosensitive drum, and the third photosensitive drum are located above the sheet storage unit, from the upstream side in the sheet conveyance direction, from the third photosensitive drum, the second photosensitive drum, and the first photosensitive drum. Arranged in the order of the photosensitive drum along the sheet conveyance direction,
The discharge tray is provided on a cover that covers an upper portion of the device disposed above the conveyor belt,
The cover has an inclined portion that is inclined so as to be positioned downward toward the downstream side in the conveyance direction of the sheet of the conveyance belt,
The first cartridge is located under the inclined portion,
The upper end of the first cartridge is provided at a position lower than the upper end of the second cartridge, and is provided at a position lower than the upper end of the third cartridge. Item 13. The image forming apparatus according to any one of items 12. A sheet accommodating portion for accommodating the sheet;
An intermediate transfer belt that is provided above the sheet container and onto which the adhesive and toner are transferred,
The transfer member transfers the adhesive and toner transferred to the intermediate transfer belt to a sheet,
The first cartridge, the second cartridge, and the third cartridge are arranged along a sheet conveyance direction in the sheet storage portion,
The first cartridge is provided at a position closer to the transfer member than the second cartridge and the third cartridge, and the size of the first cartridge, the second cartridge, and the third cartridge in the arrangement direction is 13. The image forming apparatus according to claim 3, wherein the size of the second cartridge is smaller than the size of the third cartridge in the arrangement direction, and the size of the third cartridge is smaller than the size of the third cartridge in the arrangement direction. A first housing portion for housing an adhesive made of powder having adhesiveness to the foil;
A second containing portion for containing black toner;
A plurality of third storage portions for storing toner other than black;
A first photosensitive drum provided corresponding to the first housing portion and forming an electrostatic latent image;
A second photosensitive drum which is provided corresponding to the second housing portion and forms an electrostatic latent image;
A plurality of third photosensitive drums provided corresponding to each of the plurality of third accommodating portions and forming an electrostatic latent image;
A first developing roller for supplying an adhesive to the electrostatic latent image on the first photosensitive drum to form an adhesive image;
A second developing roller for supplying black toner to the electrostatic latent image on the second photosensitive drum to form a black toner image;
A plurality of third developing rollers provided corresponding to the respective third photosensitive drums, supplying a toner other than black to the electrostatic latent image on the third photosensitive drum to form a toner image other than black;
A belt in contact with the first photosensitive drum, the second photosensitive drum, and the third photosensitive drum;
A foil transfer part that bonds the foil to the adhesive image by contacting the foil to the adhesive image of the sheet and heating the adhesive image;
An image forming apparatus comprising: a separation mechanism that separates the first photosensitive drum from the belt. A first housing portion for housing an adhesive made of powder having adhesiveness to the foil;
A second containing portion for containing black toner;
A plurality of third storage portions for storing toner other than black;
A first photosensitive drum provided corresponding to the first housing portion and forming an electrostatic latent image;
A second photosensitive drum which is provided corresponding to the second housing portion and forms an electrostatic latent image;
A plurality of third photosensitive drums provided corresponding to each of the plurality of third accommodating portions and forming an electrostatic latent image;
A first developing roller that forms an adhesive image by supplying an adhesive to the electrostatic latent image on the first photosensitive drum in a state of being separated from the first photosensitive drum;
A second developing roller that supplies black toner to the electrostatic latent image on the second photosensitive drum in a state of being separated from the second photosensitive drum to form a black toner image;
A plurality of third developing rollers for supplying toner other than black to the electrostatic latent image on the third photosensitive drum in a state of being separated from the corresponding third photosensitive drum to form a toner image other than black;
A foil transfer portion that contacts the foil to the adhesive image of the sheet and heats the adhesive image to bond the foil to the adhesive image;
An image forming apparatus, wherein when the foil is not transferred, driving of the first developing roller is stopped.

Images