JP6821925B2 - Image forming device - Google Patents

Description

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

Conventionally, in an image forming apparatus, a foil of gold, silver, white or the like is transferred to a toner image forming portion that forms a toner image and an adhesive image on a sheet and an adhesive image on the sheet formed by the toner image forming portion. Those provided with a foil transfer unit are known (see, for example, Patent Document 1). The toner image forming portion includes five accommodating portions, and a developing roller and a photosensitive drum corresponding to each accommodating portion. Black, yellow, magenta, cyan, and adhesives for foil bonding are housed in the five toner housings.

Japanese Unexamined Patent Publication No. 2012-215836

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

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 that transfers a foil.

In order to achieve the above object, the image forming apparatus of the present invention includes a first accommodating portion for accommodating an adhesive made of powder having adhesiveness to a foil, and a second accommodating portion for accommodating black toner. A plurality of third accommodating portions for accommodating toners other than black, a first photosensitive drum provided corresponding to the first accommodating portion and forming an electrostatic latent image, and a second accommodating portion corresponding to the second accommodating portion. A second photosensitive drum on which an electrostatic latent image is formed, a plurality of third photosensitive drums provided corresponding to each of the plurality of third accommodating portions, and a plurality of third photosensitive drums on which an electrostatic latent image is formed, and a first photosensitive drum. The first developing roller, which comes into contact with the drum and supplies an adhesive to the electrostatic latent image on the first photosensitive drum to form an adhesive image, and the second photosensitive drum come into contact with each other to form an adhesive image on the second photosensitive drum. A second developing roller that supplies black toner to the electrostatic latent image to form a black toner image, and a third photosensitive drum that is provided corresponding to each third photosensitive drum and comes into contact with the third photosensitive drum. A plurality of third developing rollers that supply a toner other than black to the above electrostatic latent image to form a toner image other than black, a transfer member that transfers the adhesive image and the toner image to a sheet, and a first photosensitive drum. , A fuser provided on the downstream side of the second photosensitive drum and the third photosensitive drum in the transport direction of the sheet to heat-fix the adhesive image and the toner image transferred to the sheet to the sheet, and foil on the adhesive image of the sheet. A foil transfer portion for adhering the foil to the adhesive image and a separation mechanism are provided by contacting the toner image with the toner and heating the toner image.
Then, 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 from each other when the foil is not transferred. As a result, deterioration of the adhesive that forms the image that transfers the foil can be suppressed.

In order to achieve the above object, the image forming apparatus of the present invention includes a first accommodating portion for accommodating an adhesive made of powder having adhesiveness to the foil, and a second accommodating portion for accommodating black toner. A plurality of third accommodating portions for accommodating toners other than black, a first photosensitive drum provided corresponding to the first accommodating portion and forming an electrostatic latent image, and a second accommodating portion corresponding to the second accommodating portion. A second photosensitive drum on which an electrostatic latent image is formed, a plurality of third photosensitive drums provided corresponding to each of the plurality of third accommodating portions, and a plurality of third photosensitive drums on which an electrostatic latent image is formed, and a first photosensitive drum. A first developing roller that supplies an adhesive to an electrostatic latent image on a drum to form an adhesive image, and a black toner is supplied to an electrostatic latent image on a second photosensitive drum to form a black toner image. A plurality of third developing rollers, which are provided corresponding to each of the third photosensitive drums, and supply toner other than black to the electrostatic latent image on the third photosensitive drum to form a toner image other than black. By bringing the foil into contact with the developing roller, the belt in contact with the first photosensitive drum, the second photosensitive drum, and the third photosensitive drum, and the adhesive image of the sheet, and heating the adhesive image, the foil is formed on the adhesive image. It is provided with a foil transfer portion to be bonded and a separation mechanism.
Then, 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 from each other when the foil is not transferred. As a result, deterioration of the adhesive that forms the image that transfers the foil can be suppressed.

In order to achieve the above object, the image forming apparatus of the present invention includes a first accommodating portion for accommodating an adhesive made of powder having adhesiveness to the foil, and a second accommodating portion for accommodating black toner. A plurality of third accommodating portions for accommodating toners other than black, a first photosensitive drum provided corresponding to the first accommodating portion and forming an electrostatic latent image, and a second accommodating portion corresponding to the second accommodating portion. A second photosensitive drum on which an electrostatic latent image is formed, a plurality of third photosensitive drums provided corresponding to each of the plurality of third accommodating portions, and a plurality of third photosensitive drums on which an electrostatic latent image is formed, and a first photosensitive drum. A first developing roller that supplies an adhesive to the electrostatic latent image on the first photosensitive drum to form an adhesive image while being separated from the drum, and a second photosensitive drum that is 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, and an electrostatic latent image on the third photosensitive drum while being separated from the corresponding third photosensitive drum. A plurality of third developing rollers that supply non-black toner to form a non-black toner image and a foil are brought into contact with the adhesive image of the sheet, and the adhesive image is heated to form a foil on the adhesive image. It is provided with a foil transfer part to be bonded.
Then, when the foil is not transferred, the image forming apparatus stops driving the first developing roller.

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 forming the image for transferring the foil can be suppressed.

According to the present invention, deterioration of the adhesive forming an image for transferring the foil can be suppressed.

It is a figure which shows the schematic structure of the color printer in 1st Embodiment. It is a figure which shows all the photosensitive drums, all cartridges and a separation mechanism, and is the figure (a) which shows the state when a linear motion cam is in a 1st position, and the state when a linear motion cam is in a 2nd position. It is a figure (b) which shows. It is a figure which shows all the photosensitive drums, all cartridges and a separation mechanism, and is the figure (a) which shows the state when a linear motion cam is in a 4th position, and the state when a linear motion cam is in a 5th position. It is a figure (b) which shows. It is a flowchart which shows the control operation of a control part. It is a figure which shows all the photosensitive drums, all cartridges, and the separation mechanism in 2nd Embodiment, and is the figure (a) which shows the state when a linear motion cam is in a 1st position, and the figure (a) which shows the linear motion cam in a 3rd position It is a figure (b) which shows the state when it is in a position | It is a figure which shows all the photosensitive drums, all cartridges and a separation mechanism, and is the figure (a) which shows the state when a linear motion cam is in a 4th position, and the state when a linear motion cam is in a 5th position. It is a figure (b) which shows. It is a flowchart which shows the control operation of a control part. It is a map showing the relationship between the combination of each flag and the position of the linear motion cam. It is a figure which shows all the photosensitive drums, all cartridges, and the separation mechanism in 3rd Embodiment, and is the figure (a) which shows the state when a linear motion cam is in a 2nd position, and the figure (a) which shows the state | It is a figure (b) which shows the state when it is in a position | It is a figure which shows all the photosensitive drums, all cartridges and a control part in 4th Embodiment, and is the figure (a) which shows the state at the time of color printing and foil printing, and color printing is performed, and foil printing is performed. A diagram (b) showing a state when there is no printing, a diagram (c) showing a state when monochrome printing and foil printing are performed, and a diagram (d) showing a state when monochrome printing is performed and foil printing is not performed. is there. It is a figure which shows the modification of a color printer.

[First Embodiment]
Next, the 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". Further, the vertical direction in FIG. 1 is defined as "up and down".

As shown in FIG. 1, the color printer 1 as an example of the 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.

An discharge tray 11 on which the paper S as an example of the sheet discharged to the outside of the machine is placed is provided on the upper part of the housing 10. Specifically, the housing 10 includes a top cover 12 as an example of a cover that covers the upper part of the device. The discharge tray 11 is provided on the top cover 12.

The paper feed unit 30 is provided at the lower part of the housing 10. The paper feed unit 30 includes a paper storage unit 31 as an example of the sheet storage unit and a paper feed mechanism 32. The paper accommodating unit 31 accommodates the paper S. The paper feeding mechanism 32 includes a paper feeding 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 feeding mechanism 32 conveys the paper S accommodated in the paper accommodating portion 31 forward, then obliquely upward in the front, and further obliquely upward in the rear. Therefore, the transport direction of the paper S in the paper storage unit 31 is the front-back 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 arranged to face the corresponding photosensitive drum 51. The LED unit 5 exposes the surface of the photosensitive drum 51 by blinking the light emitting portion based on the image data, and the photosensitive drum 51 is exposed. An electrostatic latent image is formed on top.

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 accommodating portion 52A accommodates the adhesive. The adhesive consists of a powder that is adhesive to the foil. In this embodiment, the adhesive melts when heated and adheres to the foil when melted. The first developing roller 53A contacts 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 accommodating portion 52B accommodates 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 accommodating portion 52C and a third developing roller 53C. The three third accommodating portions 52C accommodate toners other than black, specifically, toners of each color of yellow, magenta, and cyan. The three third developing rollers 53C are provided corresponding to the third photosensitive drum 51C, and come into contact with the third photosensitive drum 51C to supply toner other than black to the electrostatic latent image on the third photosensitive drum 51C. To form a toner image other than black.

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. It is composed of three third photosensitive drums 51C provided corresponding to each of the above.

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

The drive roller 71 and the driven roller 72 are arranged in parallel above the paper accommodating portion 31 so as to be separated from each other in the front-rear direction. The transport belt 73 is an endless belt. The transport belt 73 is wound around the drive roller 71 and the driven roller 72, and is in a state of being stretched between the drive roller 71 and the driven roller 72. The outer surface of the transport belt 73 faces each photosensitive drum 51 from below. The transport belt 73 is arranged above the paper accommodating portion 31, and is adapted to transport the paper S supplied from the paper feeding unit 30 from the front to the rear on the surface facing the photosensitive drum 51.

Further, inside the transport belt 73, five transfer rollers 74 that sandwich the transport belt 73 with each photosensitive drum 51 are arranged so as to face each photosensitive drum 51. A transfer bias is applied to the transfer roller 74 so that 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 are transferred to the paper S.

The fuser 80 is provided on the downstream side in the transport direction of the paper S from the first photosensitive drum 51A, the second photosensitive drum 51B, and the third photosensitive drum 51C. The fuser 80 mainly includes a heating roller 81 and a pressure roller 82 that is arranged to face the heating roller 81 and presses the heating roller 81 so that the paper S passes between the heating roller 81 and the pressure roller 82. It is provided in.

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 electric charge of the exposed portion is removed, and an electrostatic latent image based on the image data is formed on the first photosensitive drum 51A, the second photosensitive drum 51B, and the third photosensitive drum 51C. After that, 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 paper S supplied on the transport belt 73 passes between each photosensitive drum 51 and each transfer roller 74. At this time, when the first photosensitive drum 51A, the second photosensitive drum 51B, and the third photosensitive drum 51C come into contact with the paper S conveyed by the conveying belt 73, the adhesive image formed on each photosensitive drum 51 and the adhesive image The toner image is transferred onto the paper S. Then, the fixing device 80 heat-fixes the adhesive image and the toner image transferred to 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.

A foil tape F having a foil before being transferred is wound on the first reel 91. In the foil tape F, a foil layer is formed on a tape-shaped support. The second reel 92 is arranged 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 unit 93.

The foil transfer unit 93 has a first foil transfer roller 93A and a second foil transfer roller 93B that is arranged 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 a foil tape F wound between the first reel 91 and the second reel 92. The foil transfer unit 93 is adapted to bring the foil on the foil tape F into contact with the surface on which the adhesive image of the paper S sent out from the fixing device 80 is formed. As a result, the foil transfer unit 93 transfers the foil to the adhesive image by heating the adhesive 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 51A, the second photosensitive drum 51B, and the third photosensitive drum 51C are arranged above the paper accommodating portion 31. Further, the first photosensitive drum 51A, the second photosensitive drum 51B, and the third photosensitive drum 51C have three third photosensitive drums 51C and a second photosensitive drum 51C from the upstream side in the conveying direction of the paper S along the conveying direction of the paper S. 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. In this way, the housing 10 can be downsized by reducing the size of the first cartridge 50A, which is rarely used.

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

The first cartridge 50A is located below the inclined portion 12A. Specifically, the first cartridge 50A is arranged below the lower portion of the rear portion of the inclined portion 12A. By arranging the first cartridge 50A, which is smaller than the other cartridges 50B and 50C, under the inclined portion 12A in this way, the housing 10 can be miniaturized.

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

The first cartridge 50A is arranged at a position closer to the duct 14 than the second cartridge 50B and the third cartridge 50C. By arranging the first cartridge 50A, which is 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 inside the housing 10 can be used without waste.

Further, 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 for separating 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 motion cam 300, a gear 110, and a motor M.

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

The linear motion cam 300 has a first cam portion 310, a second cam portion 320, and three third cam portions 330 on a 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, respectively.

As shown in FIGS. 2 (a) and 2 (b) and 3 (a) and 3 (b), 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 extending obliquely upward in the front direction and a second horizontal portion 313 extending forward from the upper end of the inclined portion 312. The first horizontal portion 311 is provided so as to be arranged under the boss 54 of the first cartridge 50A when the linear motion 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 come into contact with the first photosensitive drum 51A when it is located below the boss 54 of the first cartridge 50A. The second horizontal portion 313 is provided so as to come into contact with the boss 54 of the first cartridge 50A when the linear motion 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 diagonally upward 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 arranged under the boss 54 of the second cartridge 50B when the linear motion 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 come into contact with the second photosensitive drum 51B when it is located below the boss 54 of the second cartridge 50B. The second horizontal portion 323 is provided so as to come into contact with the boss 54 of the first cartridge 50A when the linear motion cam 300 is located at the fifth position.

Each of the three third cam portions 330 is provided at a position facing the third cartridge 50C. The third cam portion 330 includes a first horizontal portion 331 extending in the front-rear direction, an inclined portion 332 extending diagonally upward from the front end of the first horizontal portion 331, and a second horizontal portion 333 extending forward from the upper end of the inclined portion 332. And have. The first horizontal portion 331 is provided so as to be arranged 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 it is located below the boss 54 of the third cartridge 50C. The second horizontal portion 333 is provided so as to be in contact with the boss 54 of the third cartridge 50C when the linear motion 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 so as to rotate when a driving force is input from the motor M.

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

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

The control unit 200 is configured to determine whether to perform color printing or monochrome printing, and also to determine whether or not to perform foil printing to transfer the foil. Specifically, it is configured to determine whether or not the print data includes black image data, metallic 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 a metallic color, and dots of a color other than black and metallic colors are included. Then, when the dots corresponding to the metal color are included, the control unit 200 determines that the received print data includes the image data of the metal color. Further, when the control unit 200 includes dots of colors other than black and metallic colors, the control unit 200 determines that the received print data includes color image data.

Then, the control unit 200 determines that the foil printing is performed when the received print data includes the image data of the metallic color. Then, the control unit 200 determines that color printing is performed when the received print data includes color image data, and determines that monochrome printing is performed when the received print data does not include color image data. ..

When the control unit 200 determines that color printing and foil printing are to be performed, the control unit 200 positions the linear motion cam 300 at the first position. When the control unit 200 performs color printing and determines that foil printing is not performed, the control unit 200 positions the linear cam 300 at the second position. The control unit 200 positions the linear cam 300 at the fourth position when it determines that monochrome printing is performed and foil printing is not performed, that is, when the print data contains only black image data. Further, the control unit 200 positions the linear motion cam 300 at the fifth position after printing is executed.

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

Upon receiving the print data, the control unit 200 determines whether or not the print data includes the image data of the metallic color (S3).

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

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

When it is determined in step S5 that the print data includes color image data (S5, Yes), the control unit 200 moves the linear motion 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 motion cam 300 to the fourth position (S7).

After moving the linear motion cam 300 in steps S4, S6, and S7, the control unit 200 executes printing (S8). After printing is executed, the control unit 200 moves the linear motion 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 the metallic color image data and the color image data, the linear motion cam 300 moves to the first position as shown in FIG. 2A. 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 below the boss 54 of each cartridge 50A, 50B, 50C. 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 come into contact with each other. Then, the adhesive or toner is supplied from the developing rollers 53A, 53B, 53C to the corresponding photosensitive drums 51A, 51B, 51C.

When the print data does not include the metallic color image data and includes the color image data, the linear motion cam 300 moves to the second position as shown in FIG. 2B. 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. Then, when the linear motion cam 300 is in the second position, the second horizontal portion 313 of the first cam portion 310 comes into contact with 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 first horizontal portions 321 and 331 of the second cam portion 320 and the third cam portion 330 are located below the boss 54 of each of the cartridges 50B and 50C. There is. Therefore, 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, toner is supplied to the second photosensitive drum 51B and the third photosensitive drum 51C from the second developing roller 53B and the third developing roller 53C.

When the print data does not include the metallic color image data or the color image data, that is, when the print data contains only the black image data, as shown in FIG. 3A, The linear motion cam 300 moves to the fourth position. At this time, the second horizontal portion 313 of the first cam portion 310 comes into contact with 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 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. Then, when the linear cam 300 is in the fourth position, the second horizontal portion 333 of the third cam portion 330 comes into contact with 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 motion cam 300 is in the fourth position, the first 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 come into contact with each other. As a result, black toner is supplied to the second photosensitive drum 51B from the second developing roller 53B.

As described above, in the present embodiment, when the foil printing is not performed, the unused first developing roller 53A and the first photosensitive drum 51A are separated from each other. As a result, deterioration of the adhesive can be suppressed.

Further, in the present embodiment, when monochrome printing is performed, the unused third developing roller 53C and the third photosensitive drum 51C are separated from each other. As a result, deterioration of toner other than black can be suppressed.

Then, when printing is completed, the linear motion cam 300 moves to the fifth position as shown in FIG. 3 (b). At this time, the inclined portion 322 of the second cam portion 320 pushes up the boss 54 of the second cartridge 50B. Then, when the linear motion cam 300 is in the fifth position, the second horizontal portions 313, 323, 333 of the cam portions 310, 320, 330 come into contact with the boss 54 of each cartridge 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.

In this way, when printing is completed, all the developing rollers 53A, 53B, 53C are separated from the photosensitive drums 51A, 51B, 51C, so that deterioration of the adhesive and toner when the warming operation is performed thereafter is prevented. It can be suppressed.

[Second Embodiment]
Next, the 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 also configured to be movable to a third position (position in FIG. 5B), which is a position in front of the first position. In the present embodiment, the same components as those in the first embodiment will be designated by the same reference numerals, and the description thereof will be omitted.

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

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

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

Each third cam portion 330A has a second inclined portion 334 extending diagonally upward from the rear end of the first horizontal portion 331 and a third horizontal portion 335 extending 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 motion cam 300 is located at the third position.

When the print data includes only black image data and metallic color image data, the control unit 200 determines that monochrome printing and foil printing are performed. Then, the control unit 200 is configured to position the linear motion cam 300 at the third position when it is determined that monochrome printing and foil printing are performed.

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 It is set to 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 printing is executed, the control unit 200 moves the linear motion 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 motion 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 motion cam 300 moves to the first position. Therefore, all the developing rollers 53A, 53B, 53C come into contact with the corresponding photosensitive drums 51A, 51B, 51C. As a result, the adhesive or toner is supplied from the developing rollers 53A, 53B, 53C to the corresponding photosensitive drums 51A, 51B, 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 motion 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. Then, when the linear cam 300 is in the third position, the third horizontal portion 335 of the third cam portion 330 comes into contact with 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 motion 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 below 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 come into contact with the second photosensitive drum 51B. 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.

In this way, when monochrome printing and foil printing are performed, the unused third developing roller 53C is separated from the third photosensitive drum 51C. As a result, 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 in, the linear motion 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 dynamic 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. 6B. 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, the 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 51A and the transfer belt 73. In the present embodiment, the same components as those in the first embodiment will be designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 9A, the first cartridge 50A supports the first photosensitive drum 51A. Further, 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, all the photosensitive drums 51 are brought into contact with the transport belt 73 (see FIG. 2A).

When the linear cam 300 is in the second position, the first photosensitive drum 51A is separated from the transport belt 73. Further, when the linear motion cam 300 is in the second position, the second photosensitive drum 51B and the third photosensitive drum 51C are brought into contact with the transport belt 73. In this way, when the adhesive is not used, the deterioration of the adhesive can be suppressed by separating the first photosensitive drum 51A from the transport belt 73.

As shown in FIG. 9B, when the linear motion cam 300 is in the fourth position, the first photosensitive drum 51A and the third photosensitive drum 51C are separated from the transport belt 73. On the other hand, when the linear motion cam 300 is in the fourth position, the second photosensitive drum 51B is brought into contact with the transport belt 73. In this way, when the adhesive and the toner other than black are not used, the deterioration of the adhesive and the toner other than black is suppressed by separating the first photosensitive drum 51A and the third photosensitive drum 51C from the transport belt 73. Can be done.

Then, as shown in FIG. 9C, when the linear motion cam 300 is in the fifth position, all the photosensitive drums 51A, 51B, and 51C are separated from the transport belt 73. By separating the photosensitive drums 51A, 51B, and 51C from the transport belt 73 after the printing is completed in this way, it is possible to prevent the adhesive and toner from deteriorating due to the subsequent warming operation or the like.

[Fourth Embodiment]
Next, the fourth embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the present embodiment, the driving of the first developing roller 53A is stopped when the foil is not transferred. In the present embodiment, the same components as those in the first embodiment will be designated by the same reference numerals, and the description thereof will be 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 to obtain the adhesive image. It is provided to form. The second developing roller 53B is provided so as to supply black toner to the electrostatic latent image on the second photosensitive drum 51B in a state of being separated from the second photosensitive drum 51B to form a black toner image. .. 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 in a state of being separated from the third photosensitive drum 51C.

The control unit 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, when 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 in. Further, the motor, a transmission mechanism for transmitting the driving force of the motor to the first developing roller 53A, a transmission mechanism for transmitting 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. When a transmission mechanism for transmission is provided, the control unit 200 may be configured to control each transmission mechanism.

Then, when the control unit 200 determines that color printing and foil printing are to be performed, all the developing rollers 53A, 53B, and 53C are rotationally driven.

When the control unit 200 performs color printing and determines that foil printing is not performed, the control unit 200 rotationally drives the second developing roller 53B and the third developing roller 53C as shown in FIG. 10B. Further, the control unit 200 stops driving the first developing roller 53A. As a result, deterioration of the adhesive not used for printing can be suppressed.

When the control unit 200 determines that monochrome printing and foil printing are performed, the control unit 200 rotationally drives the first developing roller 53A and the second developing roller 53B, as shown in FIG. 10 (c). Further, the control unit 200 stops driving the third developing roller 53C. As a result, deterioration of toner other than black that is not used for printing can be suppressed.

When the control unit 200 performs monochrome printing and determines that foil printing is not performed, the control unit 200 rotationally drives the second developing roller 53B as shown in FIG. 10 (d). Further, the control unit 200 stops driving the first developing roller 53A and the third developing roller 53C. As a result, deterioration of the adhesive not used for printing and the toner other than black can be suppressed.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments. The specific configuration can be appropriately changed without departing from the spirit of the present invention. The same components as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the first embodiment and the second embodiment, the control unit 200 positions the linear motion cam 300 at the first position or the third position when the print data includes the image data of the metallic 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 linear motion cam 300 is set to the first position or the third position. It may be configured to be positioned at a position.

Here, the area designation will be described. In this form, on the screen of a device for transmitting print data such as a personal computer, a region for transferring the foil to the image in the enclosed portion by enclosing a part of the image to be printed by the user's operation. Can be specified. The device that transmits the print data also transmits the coordinate data in which the area is specified when the print data is transmitted. When the control unit 200 receives the coordinate data, the control unit 200 determines that there is an area designation for transferring the foil in the print data. Then, the control unit 200 forms dots other than white within the range indicated by the coordinate data by using an adhesive.

Further, the control unit may be configured to position the linear motion 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 for transmitting print data such as a personal computer, foil layer data having only image data for transferring foil and toner image layer data having only image data for not transferring foil 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 the foil layer data, and if the print data includes the foil layer data, determines that foil printing is performed.

In the above embodiment, the transfer roller 74 has been 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 drive 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 drive roller 71 and the driven roller 72 are arranged above the photosensitive drums 51A, 51B, and 51C. The driven roller 72 is arranged in front of the driving roller 71. The intermediate transfer belt 73B is provided above the paper accommodating portion 31, more specifically, above the photosensitive drums 51A, 51B, and 51C. The intermediate transfer belt 73B is wound around the drive roller 71 and the driven roller 72, and is in a state of being stretched between the drive roller 71 and the driven roller 72. The outer surface of the intermediate transfer belt 73B is in contact with each photosensitive drum 51, and the transfer roller 74 is arranged 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 73B conveys the paper S supplied from the paper feeding 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 arranged to face the drive roller 71 via the intermediate transfer belt 73B. A transfer bias is applied to the secondary transfer roller 75.

The adhesive image or toner image formed on each photosensitive drum 51 is sequentially superimposed on the intermediate transfer belt 73B. Then, the paper S conveyed from the paper feed 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 paper S. Transcribed. After that, the paper S passes through the fixing device 80, so that the adhesive image and the toner image are heat-fixed.

The color printer 1B is also provided with a separation mechanism 100 and a control unit 200. Then, in the case of color printing and foil printing, the linear motion cam 300 moves to the first position, so that all the developing rollers 53A, 53B, 53C come into contact with the corresponding photosensitive drums 51A, 51B, 51C. When color printing is performed and foil printing is not performed, the linear motion cam 300 moves to the second position, so that the first developing roller 53A and the first photosensitive drum 51A are separated from each other. When monochrome printing is performed and foil printing is not performed, the linear motion cam 300 moves to the fourth position, so that the first developing roller 53A and the first photosensitive drum 51A and the third developing roller 53C and the third photosensitive drum 51C move. Separate. Further, when the print data is not received, the linear motion cam 300 moves to the fifth position, so that all the developing rollers 53A, 53B, 53C are separated from the photosensitive drums 51A, 51B, 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 transport direction of the paper S in the paper accommodating portion 31, that is, the front-rear direction. There is. 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 size of the first cartridge 50A 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 is smaller than the size in the front-rear direction of the second cartridge 50B, and the third cartridge 50A is used. It is smaller than the size of the cartridge 50C in the front-rear direction. As a result, the housing 10 can be miniaturized in the front-rear direction.

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

In the above 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, and for example, the surface of the photosensitive drum 51 is exposed by laser light. It may be an exposure device.

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

1 Color Printer 51A 1st Photosensitive Drum 51B 2nd Photosensitive Drum 51C 3rd Photosensitive Drum 52A 1st Storage 52B 2nd Storage 52C 3rd Storage 53A 1st Development Roller 53B 2nd Development Roller 53C 3rd Development Roller 74 Transfer Roller 80 Fixer 93 Foil transfer part 100 Separation mechanism S paper

Claims (14)

With the first photosensitive drum
With the second photosensitive drum
With multiple third photosensitive drums,
A first developing roller that comes into contact with the first photosensitive drum and supplies an adhesive made of powder having adhesiveness to the foil to the electrostatic latent image on the first photosensitive drum to form an adhesive image. When,
A second developing roller that comes into contact with the second photosensitive drum and supplies black toner to the electrostatic latent image on the second photosensitive drum to form a black toner image.
It is provided corresponding to each of the third photosensitive drums, and in contact with the third photosensitive drum, a toner other than black is supplied to the electrostatic latent image on the third photosensitive drum to form a toner image other than black. With a plurality of third developing rollers
A transfer member that transfers the adhesive image and the toner image to the 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 transport direction of the sheet, and thermally fixing the adhesive image and the toner image transferred to the sheet to the sheet.
A foil transfer part that transfers the foil to the adhesive image by bringing the foil into contact with the adhesive image of the sheet and heating the adhesive image.
A separation mechanism having a linear motion cam, which is at least one of 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 third photosensitive drum. It is equipped with a separation mechanism that separates the drums.
The linear motion cam
It is movable between the 1st position , the 2nd position, the 3rd position, the 4th position and the 5th position.
When in the first 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 third photosensitive drum are brought into contact with each other.
When in the second position, the second developing roller and the second photosensitive drum and 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 me
When in the third position, the first developing roller and the first photosensitive drum and 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 separated from each other. Let me
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 and the first photosensitive drum and the third developing roller and the third photosensitive drum are separated from each other. Let me
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 third photosensitive drum are separated from each other.
When sliding from the fifth position to the first position in one direction, the first developing roller and the first photosensitive drum are separated from each other, and the second developing roller and the second photosensitive drum are brought into contact with each other. through the,
When sliding in one direction from the fifth position to the first position, the fifth position, the fourth position, the second position, and the first position are moved in this order.
An image forming apparatus characterized in that when it slides and moves from the fifth position to the third position in one direction, it passes through the first position . A control unit for controlling the separation mechanism is provided.
The control unit determines whether to perform color printing or monochrome printing, determines whether to perform foil printing to transfer the foil, and when it is determined to perform color printing and foil printing, the direct motion The image forming apparatus according to claim 1 , wherein the cam is positioned at the first position. The image forming apparatus according to claim 2 , wherein when the control unit performs color printing and determines that foil printing is not performed, the linear motion cam is positioned at the second position. The image forming apparatus according to claim 2 or 3 , wherein when the control unit performs monochrome printing and determines that foil printing is not performed, the linear motion cam is positioned at the fourth position. .. A control unit for controlling the separation mechanism is provided.
The image according to any one of claims 1 to 4, wherein when the control unit determines to perform monochrome printing and foil printing, the linear motion cam is positioned at the third position. Forming device. The control unit determines whether or not the print data includes black image data, metallic color image data, and color image data, and the print data includes only black image data and metallic color image data. If is included, the linear motion cam is positioned at the third position, and if the print data contains only black image data, the linear motion cam is positioned at the fourth position. The image forming apparatus according to claim 5 . 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 linear motion cam is placed in the first position or the third position. The image forming apparatus according to claim 5 or 6 , wherein the image forming apparatus is located in. The control unit
It is possible to create foil layer data having only image data for transferring foil and toner image layer data having only image data for not transferring foil.
A claim characterized in that it is determined whether or not the print data includes the foil layer data, and when the print data includes the foil layer data, the linear motion cam is positioned at the first position or the third position. The image forming apparatus according to any one of claims 5 to 7 . A first accommodating portion provided corresponding to the first photosensitive drum and accommodating the adhesive,
A second accommodating portion provided corresponding to the second photosensitive drum and accommodating black toner,
A plurality of third accommodating portions provided corresponding to the third photosensitive drum and accommodating toner other than black,
A first cartridge having the first accommodating portion and the first developing roller,
A second cartridge having the second accommodating portion and the second developing roller, and
A plurality of third cartridges having the third accommodating portion and the third developing roller are provided.
The linear motion cam
A first cam portion that can contact a part of the first cartridge and
A second cam portion that can contact a part of the second cartridge and
The image forming apparatus according to any one of claims 1 to 8 , further comprising a third cam portion that can come into contact with a part of the third cartridge. The image forming apparatus according to claim 9 , wherein the first cartridge is smaller than the second cartridge and smaller than the third cartridge. A duct for exhausting the air around the fuser to the outside of the machine is provided.
The first cartridge, an image forming apparatus according to claim 9 or claim 10, characterized in that it is located closer to the duct than the second cartridge and third cartridge. A seat storage unit that houses the seat and
A transport belt, which is arranged above the seat accommodating portion and transports the sheet,
Equipped with a discharge tray on which sheets discharged outside the machine are placed,
When the first photosensitive drum, the second photosensitive drum, and the third photosensitive drum come into contact with the sheet transported by the transport belt, 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 the third photosensitive drum, the second photosensitive drum, and the first photosensitive drum from the upstream side in the sheet transport direction above the sheet accommodating portion. Arranged in the order of the photosensitive drum along the sheet transport direction,
The discharge tray is provided on a cover that covers the upper part of the device arranged above the transport belt.
The cover has an inclined portion that is inclined so as to be positioned downward toward the downstream side in the conveying direction of the seat of the conveying belt.
The first cartridge is located below the slope and
The ninth aspect of the present invention is characterized in that the upper end portion of the first cartridge is provided at a position lower than the upper end portion of the second cartridge and is provided at a position lower than the upper end portion of the third cartridge. Item 2. The image forming apparatus according to any one of items 11 . A seat storage unit that houses the seat and
An intermediate transfer belt, which is provided above the sheet accommodating portion and on which the adhesive and toner are transferred, is provided.
The transfer member transfers the adhesive and toner transferred to the intermediate transfer belt to the sheet.
The first cartridge, the second cartridge, and the third cartridge are arranged along the sheet conveying direction in the sheet accommodating 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 in the arrangement direction of the first cartridge, the second cartridge, and the third cartridge is the size. The image forming apparatus according to any one of claims 9 to 11 , wherein the image forming apparatus is smaller than the size of the second cartridge in the alignment direction and smaller than the size of the third cartridge in the alignment direction. With the first photosensitive drum
With the second photosensitive drum
With multiple third photosensitive drums,
A first developing roller that forms an adhesive image by supplying an adhesive made of powder that has adhesiveness to the foil to the electrostatic latent image on the first photosensitive drum.
A second developing roller that supplies a 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 each of the third photosensitive drums and 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 that comes into contact with the first photosensitive drum, the second photosensitive drum, and the third photosensitive drum.
A foil transfer part that adheres the foil to the adhesive image by bringing the foil into contact with the adhesive image of the sheet and heating the adhesive image.
A separation mechanism having a linear motion cam, the separation mechanism for separating at least one of the first photosensitive drum and the belt, the second photosensitive drum and the belt, and the third photosensitive drum and the belt. Prepare,
The linear motion cam
It is movable between the 1st position , the 2nd position, the 3rd position, the 4th position and the 5th position.
When in the first position, the first photosensitive drum, the second photosensitive drum, and the third photosensitive drum are brought into contact with the belt, respectively.
When in the second position, the second photosensitive drum and the third photosensitive drum are brought into contact with the belt, respectively, and the first photosensitive drum is separated from the belt.
When in the third position, the first photosensitive drum and the second photosensitive drum are brought into contact with the belt, and the third photosensitive drum is separated from the belt.
When in the fourth position, the second photosensitive drum is brought into contact with the belt, and the first photosensitive drum and the third photosensitive drum are separated from the belt.
When in the fifth position, the first photosensitive drum, the second photosensitive drum, and the third photosensitive drum are separated from the belt.
When sliding in one direction from the fifth position to the first position, the first photosensitive drum is separated from the belt and the second photosensitive drum is brought into contact with the belt .
When sliding in one direction from the fifth position to the first position, the fifth position, the fourth position, the second position, and the first position are moved in this order.
An image forming apparatus characterized in that when it slides and moves from the fifth position to the third position in one direction, it passes through the first position .

Images