JP4019836B2 - Sheet transport system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention conveys the sheet-like recording material for transferring an image to an image transfer means, and transfers the image of the sheet-like recording material by a registration roller for synchronizing the conveyance of the sheet-like recording material and the image transfer position. The present invention relates to a sheet conveyance system that adjusts the conveyance timing to the means.
[0002]
[Prior art]
In an image forming apparatus that transfers a color image formed on an image recording medium in an image forming unit to a sheet-like recording material, such as a copying machine or a printer, the color image formed on the image recording medium reaches the image transfer unit A sheet conveying system that supplies a sheet-like recording material to the image transfer unit in accordance with the timing is used.
[0003]
In this type of sheet conveyance system, the sheet-like recording material is accommodated in a tray, and a registration roller for adjusting the conveyance timing of the sheet-like recording material is provided upstream of the image transfer unit in the sheet conveyance direction. Even if the leading end in the transport direction reaches the registration roller, the registration roller does not transport the sheet and temporarily stops the front end in the transport direction of the sheet.
[0004]
In addition, a loop forming roller is provided on the upstream side in the conveyance direction of the registration roller, and the leading edge of the sheet recording material is placed on the registration roller in order to prevent the leading edge deviation and skew of the sheet when supplying the image transfer portion of the sheet recording material. Even after reaching, the sheet-shaped recording material is conveyed to the registration roller side by a predetermined amount to form a deflection, and the sheet-shaped recording material is bent in a predetermined bending direction between the registration roller and the loop forming roller. Form a loop.
[0005]
As described above, when the thick paper is transported through the transport path that prevents the leading edge deviation or skew of the sheet-like recording material by forming the loop, if the thick paper is bent between the registration roller and the loop forming roller, the loop is not formed and is not formed. End up. Further, when the sheet-like recording material has perforations, the sheet-like recording material is broken at the perforations when the sheet-like recording material is bent.
[0006]
If the sheet-like recording material is bent, it causes a paper jam or other conveyance jam, resist failure, and image transfer failure.
[0007]
Therefore, based on the thickness information of the sheet-like recording material, the amount by the loop forming roller after the leading edge of the sheet-like recording material reaches the registration roller is adjusted, and the amount of loop formation between the registration roller and the conveying roller is adjusted. There has been proposed a technique for preventing the conveyance jam by changing (described in Japanese Patent Laid-Open No. 1-2226653).
[0008]
When transporting thick paper, it is necessary to balance the force with which the registration roller stops the leading edge of the thick paper and the force with which the thick paper is bent. However, the load on the registration roller increases and the leading edge of the thick paper protrudes from the registration roller. In addition, resist failure and damage to the registration roller are caused.
[0009]
Therefore, a technique for reducing the load on the registration roller by using a cardboard guide for curving the cardboard between the registration roller and the conveyance roller during conveyance of the cardboard has been proposed (Japanese Patent Laid-Open No. 6-156818).
[0010]
[Problems to be solved by the invention]
However, even if the loop formation amount of the sheet-like recording material is adjusted by the above method and the load on the registration roller is reduced by the thick paper guide, if the sheet-like recording material has a direction to be easily broken, the loop is formed. Depending on the direction, the sheet-like recording material will be broken immediately.
[0011]
An object of the present invention is to obtain a sheet conveying system that prevents the folding at the time of conveying a sheet-like recording material in consideration of the above facts.
[0012]
[Means for Solving the Problems]
  According to the first aspect of the present invention, a sheet-like recording material for transferring an image is conveyed to an image transfer means, and sheet-like recording is performed by a registration roller for synchronizing the conveyance of the sheet-like recording material and the image transfer position. A sheet conveyance system for adjusting a conveyance timing of a material to the image transfer unit, wherein the sheet-shaped recording material is conveyed by adjusting a conveyance timing of the sheet-shaped recording material by the registration roller. A transport unit having a plurality of transport paths having different bending directions with respect to the transport direction, a transport path selecting unit that selects the transport path based on information on a preset bending direction that is easy to break or a bending direction that is difficult to break, and the transport Informing means for informing the transport route selected by the route selecting means;The sheet-like recording material is accommodated in the tray that is stacked and accommodated in the conveyance direction upstream position of the conveyance path and in the tray that is located upstream of the conveyance path different from the conveyance path notified by the notification means. A deflection amount changing means for changing a deflection amount in the conveying direction of the sheet-shaped recording material,It is characterized by having.
[0013]
According to the first aspect of the present invention, the conveying means includes the plurality of conveying paths having different bending directions with respect to the conveying direction of the sheet-like recording material generated by adjusting the conveyance timing of the sheet-like recording material by the registration rollers. The sheet-shaped recording material is conveyed, and the conveyance path selection unit selects the conveyance path based on information on a preset bending direction that is easy to break or a bending direction that is difficult to break, and is selected by the conveyance path selection unit by a notification unit. The conveyance path is notified.
[0014]
  Therefore, the conveying path is selected based on the preset bending direction of the sheet-like recording material or the bending direction of the sheet-like recording material, and the notifying means is notified, and the sheet-like recording material is notified by the notified conveying path. By conveying the sheet, it is possible to prevent the sheet-like recording material from being broken during conveyance.
  In addition, the sheet-like recording is recorded on a tray that stores the sheet-like recording material in a stacking position upstream of the conveyance path, and on a tray that is located upstream of a conveyance path different from the conveyance path notified by the notification unit. It further comprises a deflection amount changing means for changing the deflection amount in the conveying direction of the sheet-like recording material when the material is accommodated.
According to a third aspect of the present invention, the tray provided at the upstream position in the conveying direction of the conveying path according to the first or second aspect stores the sheet-like recording material in a stacked manner, and a deflection amount changing means. When the sheet-like recording material is accommodated in the tray positioned upstream of the conveyance path different from the conveyance path notified by the notification means, the amount of deflection in the conveyance direction of the sheet-like recording material is changed.
Therefore, when the sheet-like recording material is conveyed by a conveyance path different from the conveyance path notified by the notification means, the deflection amount of the sheet-like recording material at the time of conveyance is adjusted, and the userEven when the tray is mistaken, the sheet-like recording material can be hardly broken.
[0015]
The invention according to claim 2 further includes switching means capable of switching the conveyance mode of the sheet-like recording material between the perforation mode and the normal mode in the invention according to claim 1, wherein the conveyance path selection means includes: A transfer route is selected when the perforation mode is selected by the switching means.
[0016]
According to the second aspect of the present invention, in the sheet conveyance system according to the first aspect, the conveyance mode of the sheet-like recording material can be switched between the perforation mode and the normal mode by the switching unit. Since the transport path is not selected in the normal mode, the user may store the paper in any tray when transporting the sheet-like recording material that does not need to consider the bending direction.
[0020]
Claim 3The invention described in (1) comprises input means capable of inputting information on the bending direction of the sheet-like recording material that is easy to break or the bending direction that is difficult to break, and displaying a message and an image that support the input. It is characterized by.
[0021]
  Claim 3According to the invention described inClaim 1 or claim 2The sheet conveying system includes input means capable of inputting information on the bending direction of the sheet-like recording material that is easy to break or the bending direction that is difficult to break, and displaying a message and an image that support the input. improves.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a schematic diagram of an image forming apparatus according to the present embodiment.
[0023]
The image forming apparatus 1 includes a document reading unit 4 that reads a document, an image forming unit 36 that forms an image, and a transport unit 37 that transports a sheet 24 as an image recording medium.
[0024]
The document reading unit 4 includes a platen glass 5 for placing the document 2 and a platen cover 3, and the document 2 placed on the platen glass 5 is pressed against the platen glass 5 by the platen cover 3. Make it easier to read images.
[0025]
Further, two light sources 6 for irradiating the platen glass 5 with light are provided inside the platen glass 5, and a full-rate mirror 7 is provided in the vicinity of the two light sources 6. When the light source 6 emits light, a reflected image from the document 2 placed on the platen glass 5 enters the full rate mirror 7, and the full rate mirror 7 reflects the reflected image in a predetermined direction.
[0026]
In the light reflection path of the full-rate mirror 7, a reduction optical system including half mirrors 8 and 9 and an imaging lens 10, an image reading element 11 including a CCD, and the like, and an image processing unit 12 are provided. The reflected light from the original 2 enters the image reading element 11 through the reduction optical system.
[0027]
The image reading element 11 reads the color material reflected light image of the document 2 at a predetermined dot density (for example, 16 dots / mm) and outputs it as predetermined image data to the image processing unit 12. The image processing unit 12 performs predetermined image processing on the image data.
[0028]
An image forming unit 36 is provided below the image reading unit 4. The image forming unit 36 is stretched around a plurality of winding rollers 20 and is moved along the longitudinal direction of an endless belt-like intermediate transfer belt 18 conveyed in the direction of arrow Y by driving a motor (not shown). A photosensitive drum (hereinafter referred to as “photosensitive member”) 14 is disposed as an image carrier that rotates in the direction at a predetermined speed.
[0029]
A charger 16 that charges the photoconductor 14 to a predetermined potential is provided around the photoconductor 14. In addition, a light beam based on a desired image is irradiated to the upper side of each photoconductor 14 in the axial direction of the photoconductor 14 uniformly charged by the charger 16 while being electrostatically applied to the photoconductor 14. An exposure device 14 for forming a latent image is disposed.
[0030]
Further, around each photoconductor 14, an electrostatic latent image formed on the photoconductor 14 is arranged in a predetermined color (yellow / magenta / yellow) on the downstream side of the light beam irradiation position along the rotation direction of the photoconductor 14. A developing unit 22 that develops a toner image by developing with a toner T of cyan / black), a first transfer unit 19 that transfers the toner image on the photoconductor 14 to the intermediate transfer belt 18, and a photoconductor 14 after transfer. A cleaner 33 for removing the remaining toner and a neutralizing lamp (not shown) for neutralizing the photoconductor 16 are arranged in this order.
[0031]
Here, the developing unit 15 is provided with four developing units 15Y / 15M / 15C / 15K at equal intervals on the peripheral surface, and the developing unit 15 rotates and develops the developing unit 15Y / according to the color to be developed. 15M / 15C / 15K is opposed to the photoreceptor 14.
[0032]
When the developing unit 15 is rotated 90 degrees each time the photosensitive member 14 makes one rotation and the intermediate transfer belt 18 is rewound four times, the toner image of each color becomes the belt of the intermediate transfer belt 18. The images are sequentially transferred to the intermediate transfer belt 18 so as to overlap each other on the surface. As a result, a color toner image is formed on the intermediate transfer belt 18. In this embodiment, the toner image in which the four color toner images are transferred in a superimposed manner is referred to as a final toner image.
[0033]
  A paper transport unit 37 is provided below the image forming unit 36. The paper transport unit 37 is provided with a plurality of transport rollers 28 for transporting the paper 24 by a driving force of a motor (not shown) along the transport path of the paper 24 as a sheet-like recording material. Transport direction of transport pathUpstreamAt the position, a first paper tray 46, a second paper tray 47, and a paper stocker 48 disposed adjacent to the image forming apparatus 1 are provided.
[0034]
The paper stocker 48 stores a large number of frequently used paper sheets and the like. Also, different types of paper are stored in the first paper tray 46 and the second paper tray 47 for each type.
[0035]
The conveyance path of the sheet 24 is such that the sheet 24 and the intermediate transfer belt 18 are in contact with each other at a predetermined position, and the second transfer unit 25 is located at a position where the conveyance path and the intermediate transfer body belt 18 are in contact with each other. Is provided.
[0036]
In the second transfer device 25, the sheet 24 is transported at a predetermined transfer speed and is formed on the intermediate transfer belt 18 while the intermediate transfer belt 18 on which the final toner image is formed and the sheet 24 are brought into close contact with each other. The final toner image is transferred to a predetermined area of the paper 24. Further, the second transfer unit 25 is provided with a transfer roller cleaner 35 for removing the toner adhering to the second transfer unit 25, and the intermediate belt 18 collects residual toner on the intermediate transfer body belt 18. Each of the belt cleaners 34 is provided.
[0037]
A fixing device 30 including a heating roller 31 having a heat source therein and a pressing roller 32 that presses the heating roller 31 is provided on the downstream side of the second transfer device 25 in the sheet conveyance direction. The final toner image transferred to the paper 24 and the paper 24 is pressed while being heated, and the final toner image is fused to the paper 24.
[0038]
The upstream side of the second transfer unit 25 in the sheet conveyance direction is composed of two rollers that are rotationally driven by the driving force of a driving means (not shown). The sheet 24 is sandwiched between the contact points 41 of the two rollers, and a predetermined speed is reached. A registration roller 40 is provided. The registration roller 40 stops rotating and stops the leading edge of the sheet 24 conveyed to the contact point 41 by the conveying roller 28 and the conveying guide 58, and the transfer area of the final toner image on the intermediate transfer belt 18 and the sheet 24 is transferred. Are rotated at a predetermined timing so that the paper 24 is fed to the second transfer unit 25.
[0039]
Further, a paper detection sensor 43 that detects the paper 24 that is about to reach the contact point 41 of the registration roller 40 is provided in the vicinity of the upstream side of the registration roller 40 in the paper conveyance direction, and the front end of the paper 24 is detected by the paper detection sensor 43. Immediately after this is detected, the leading edge of the paper 24 reaches the contact point 41 of the registration roller 40 that has stopped rotating (see FIGS. 2A and 3A).
[0040]
Here, in the present embodiment, on the upstream side in the conveyance direction of the registration roller 40, there are a mountain fold conveyance path provided with a mountain fold loop forming roller 44A and a valley fold conveyance path provided with a valley fold loop forming roller 44B. Two transport paths are provided.
[0041]
In the mountain fold conveyance path, after the leading edge of the paper 24 reaches the registration roller 40, the mountain fold loop forming roller 44A is rotationally driven to send the paper 24 to the registration roller 40 side by a predetermined amount and contact 41 of the registration roller 40. 2 and the mountain fold loop forming roller 44A, the paper 24 is bent to form a loop that is bent in the direction of the mountain fold with respect to the image forming surface of the paper 24 as shown in FIG.
[0042]
On the other hand, in the valley folding conveyance path, after the leading edge of the sheet 24 reaches the registration roller 40, the valley folding loop forming roller 44B is driven to rotate and convey the sheet 24 to the registration roller 40 side by a predetermined amount. As shown in B), a loop that is bent in the direction of valley folding with respect to the image forming surface of the paper 24 is formed.
[0043]
In this way, by forming the loop by bending the sheet 24, the leading end of the sheet 24 hits the contact point 41 of the registration roller 40, the leading end of the sheet 24 is aligned, and skew correction can be performed.
[0044]
Also, when transporting a sheet 24 having a bending direction that is easy to break, such as a sheet with perforations, the sheet 24 is transported through a transport path that forms a loop by bending the sheet in a direction opposite to the bending direction that easily breaks. Thus, the folding of the sheet 24, the conveyance jam caused by the folding of the sheet 24, the resist failure, the transfer failure, and the like are prevented.
[0045]
Here, in the present embodiment, the paper 24 accommodated in the first paper tray 46 and the second paper tray 47 is conveyed in the mountain fold conveyance path, and the paper 24 accommodated in the paper stocker 48 is conveyed in the valley fold. It is comprised so that it may be conveyed by a path | route.
[0046]
FIG. 4 shows a block diagram of a control system related to sheet conveyance according to the present embodiment.
[0047]
The image forming apparatus 1 is provided with a user interface (hereinafter referred to as “UI”) 50 that allows a user to perform an input operation to change a print instruction, change device settings, and the like, and is connected to a controller 52 that controls the whole. Has been.
[0048]
The UI 50 includes a display unit, and a menu screen as shown in FIG. 5A is displayed. When the “perforated sheet” item is selected from the menu screen, a sheet folding direction (bending direction in which the sheet is easily folded) selection screen as shown in FIG. 5B is displayed. On the folding direction selection screen, options indicating the folding direction are displayed in a picture so that the user can easily operate.
[0049]
When the user selects the folding direction, as shown in FIG. 5C, a screen for designating a place for storing perforated paper is displayed. At this time, the location of the paper tray may be displayed as a picture using a schematic diagram of the apparatus.
[0050]
Here, the controller 52 is provided with a transport path selection unit 54 that executes a transport path selection process. The conveyance path selection unit 54 accommodates the sheet 24 in a tray provided in the conveyance path selected and selected as a conveyance path for forming a loop by bending the sheet-like recording material in a direction opposite to the folding direction selected by the UI 50. A message, a picture display, and the like (see FIG. 5C) for prompting this are displayed on the UI 50.
[0051]
Further, the controller 52 is provided with a loop formation control unit 56 that bends the paper 24 and forms a loop. The loop formation control unit 56 is based on the detection signal from the paper detection sensor 43. In addition, the sheet fold 24 is bent by a predetermined amount by controlling the mountain fold loop forming roller 44A or the valley fold loop forming roller 44B.
[0052]
The amount of deflection at the time of paper conveyance is determined by a deflection amount determination process executed by the loop formation control unit 56. When the user does not use the tray provided on the conveyance path selected by the conveyance path selection unit 54, the sheet 24 is conveyed along a conveyance path that is bent in a bending direction, so that the deflection amount of the sheet 24 is less than normal. By reducing and transporting, the amount of deflection of the sheet 24 in the folding direction is reduced.
[0053]
In the present embodiment, in order to transport perforated paper such as perforated paper, the curvature radius in the folding direction of the paper 24 is increased in the transport path until the paper passes through the loop forming roller 44. Can be transported without breaking. That is, when the curvature radius of the sheet 24 forming a loop with a normal deflection amount is r0, the curvature radius r1 of the sheet 24 guided and conveyed by the sheet guide 60 is r1 >> r0. The curvature radius r2 of the sheet 24 guided and conveyed by the sheet guide 62 is set to r2 >> r0.
[0054]
The operation of this embodiment will be described below.
[0055]
When the user operates the UI 50 to create an image formation instruction, when the “perforated paper” item is selected from the menu screen (see FIG. 5A), the conveyance path selection unit 54 executes the conveyance path selection process. Is done.
[0056]
With reference to FIG. 6, the transport route selection process of the present embodiment will be described. FIG. 6 is a flowchart showing the flow of the transport route selection process according to the present embodiment.
[0057]
In step 100, the folding direction selection screen (see FIG. 5B) is displayed on the display unit of the UI 50, and the process proceeds to step 102 to wait for the user to select the folding direction. In the next step 104, it is determined whether or not the selected folding direction is a mountain fold.
[0058]
If the determination in step 104 is negative, the process proceeds to step 106, and the mountain fold conveyance path is selected as the sheet conveyance path. On the other hand, if the determination in step 104 is affirmative, the process proceeds to step 108 to select a valley folding conveyance path as the sheet conveyance path.
[0059]
In step 110, the tray provided on the selected conveyance path is notified by the UI 50, and the conveyance path selection process is terminated.
[0060]
When the mountain folding conveyance path is selected, the user may be notified that one of the first paper tray 46 and the second paper tray 47 is selected, and the size of the paper 24 is taken into consideration. Then, any tray may be selected and notified.
[0061]
When the creation of the print instruction by the user is finished and the start of printing is instructed, the controller 52 executes the printing process and the loop formation control unit 56 executes the deflection amount determining process.
[0062]
A deflection amount determination process according to the present embodiment will be described with reference to FIG. Note that. FIG. 7 is a flowchart showing the flow of deflection amount determination processing according to the present embodiment.
[0063]
In step 112, it is determined whether the paper used for printing is perforated paper. If the determination is negative, the process proceeds to step 118.
[0064]
On the other hand, if the determination in step 112 is affirmative, since it is necessary to prevent the paper from being folded, the process proceeds to step 114 to determine whether or not the user designates a tray. If the determination is negative, the sheet 24 is transported along a transport path that is difficult to break, and the process proceeds to step 118.
[0065]
If the determination in step 114 is affirmative, it is determined in step 116 whether or not the tray conveyance path designated by the user matches the notified tray conveyance path. Since it is transported along a transport path that is difficult to break, the routine proceeds to step 118. For example, when the notified tray is the first paper tray 46 and the tray designated by the user is the second paper tray 47, the paper stored in either tray is transported through the mountain folding transport path. Is done.
[0066]
In step 118, the deflection amount determination process is terminated by setting the deflection amount of the sheet 24 as a normal deflection amount.
[0067]
If the determination in step 116 is negative, the sheet 24 is bent in a direction that is easy to break, so the process proceeds to step 120, where the deflection amount of the sheet 24 is made smaller than usual and the actual deflection amount determination process is terminated. To do.
[0068]
As described above, in the image forming apparatus 1 of the present embodiment, the bending direction with respect to the conveyance direction of the sheet 24 caused by adjusting the conveyance timing of the sheet 24 by the registration rollers 40 is the mountain fold direction with respect to the image forming surface. The sheet 24 is conveyed by the mountain fold conveyance path and the valley fold conveyance path that is the valley fold direction, and the sheet 24 is determined by the conveyance path selection unit 54 based on information on a bending direction that is easily foldable or a bending direction that is difficult to fold. The transport path is selected, and the transport path selected by the transport path selection unit 54 is notified on the UI 50.
[0069]
Therefore, the user can select the conveyance path of the sheet 24 based on the bending direction of the sheet 24 that is set in advance by the UI 50 or the bending direction of the sheet 24 and notify the UI 50, and the sheet 24 is conveyed by the notified conveyance path. Further, it is possible to prevent the paper 24 from being folded during conveyance.
[0070]
In addition, when the “perforated sheet” item is selected in the UI 50, the transport path selection unit 54 selects the transport path, and usually the transport path is not selected, so it is necessary to consider the bending direction. No input is required when transporting a sheet 24 without any paper.
[0071]
  In addition, the loop formation control unit 56 uses a transport path different from the tray transport path notified by the UI 50.UpstreamWhen the paper 24 is stored in the tray located at the position of the paper 24, the deflection amount in the transport direction of the paper 24 is changed, and the paper 24 is transported through a transport path different from the transport path of the tray notified by the UI 50. The amount of deflection of the paper 24 during conveyance is adjusted, and even when the user makes a mistake in the tray, the paper 24 can be prevented from being folded.
[0072]
Further, the UI 50 can display a message, an image, or the like that supports input on the display means, and the operability for the user is improved.
[0073]
In the present exemplary embodiment, the configuration in which the UI 50 is provided in the image forming apparatus 1 has been described. However, the present invention is not limited to this, and a configuration in which a print instruction is issued from an external device connected to the image forming apparatus 1. There may be. For example, an external device is connected to a printer using the sheet conveying system of the present invention, a printer setting screen as shown in FIG. 8 is displayed on the display unit of the external device, and a print instruction is selected by selecting an item. You may make it do.
[0074]
Further, in the present embodiment, when the conveyance path provided with the tray specified by the user and the conveyance path selected by the conveyance path selection unit 54 are different, the amount of deflection at the time of conveyance is automatically reduced to thereby reduce the perforation. Although the sheet is prevented from being folded, the amount of deflection may be freely changed by the user by input from the UI 50.
[0075]
In the present embodiment, two trays for stacking and storing sheets are provided in the image forming apparatus, and a sheet stocker is connected to the outside. However, any number of trays and sheet stockers may be provided. The tray may be notified in consideration of the sheet conveyance path and the sheet size.
[0076]
【The invention's effect】
As described above, according to the present invention, the sheet-like recording material for transferring the image is conveyed to the image transfer means, and the sheet for adjusting the conveyance timing of the sheet-like recording material to the image transfer means by the registration roller. The conveyance system has an excellent effect of preventing the sheet-like recording material from being broken during conveyance.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of an image forming apparatus according to an exemplary embodiment.
FIG. 2 is an explanatory diagram of a sheet conveyance state on a mountain fold conveyance path according to the present embodiment.
FIG. 3 is an explanatory diagram of a sheet conveyance state on a valley folding conveyance path according to the present embodiment.
FIG. 4 is a block diagram illustrating a control system related to sheet conveyance according to the present embodiment.
5A is a schematic diagram showing a menu screen, FIG. 5B is a schematic diagram showing a folding direction selection screen, and FIG. 5C is a tray notification screen displayed on the UI according to the present embodiment.
FIG. 6 is a flowchart showing a flow of a transport route selection process according to the present embodiment.
FIG. 7 is a flowchart showing a flow of deflection amount determination processing according to the present embodiment.
FIG. 8 is a schematic diagram illustrating a setting screen for inputting a folding direction displayed on a display unit of an external device connected to a printer in another embodiment.
[Explanation of symbols]
1 Image forming device (sheet transport system)
24 paper (sheet-like recording material)
25 Second transfer device (image transfer means)
28 Conveying roller (conveying means)
40 Registration Roller
43 Paper detection sensor
44A Mountain fold loop forming roller (conveying means)
44B Valley fold loop forming roller (conveying means)
46 Paper tray (tray)
47 Paper tray (tray)
48 Paper stocker (tray)
50 UI (notification means, switching means, input means)
52 Controller
54 Conveyance route selection unit (conveyance route selection means)
56 Loop formation control unit (deflection amount changing means)

Claims (3)

A sheet-like recording material for transferring an image is conveyed to an image transfer means, and the sheet-like recording material is conveyed to the image transfer means by a registration roller for synchronizing the conveyance of the sheet-like recording material and the image transfer position. A sheet conveying system for adjusting timing,
A conveying means for conveying the sheet-shaped recording material and having a plurality of conveying paths having different bending directions with respect to the conveying direction of the sheet-shaped recording material generated by adjusting the conveyance timing of the sheet-shaped recording material by the registration rollers;
A conveyance path selection means for selecting the conveyance path based on information on a bending direction that is set easily or a bending direction that is difficult to break;
An informing means for informing the transport path selected by the transport path selecting means;
A tray for laminating and storing sheet-like recording materials at the upstream position in the conveyance direction of the conveyance path;
Deflection amount changing means for changing the deflection amount of the sheet-like recording material in the conveyance direction when the sheet-like recording material is accommodated in the tray located upstream of the conveyance path different from the conveyance path notified by the notification means. When,
A sheet conveying system.   The apparatus further comprises switching means capable of switching the conveyance mode of the sheet-shaped recording material between the perforation mode and the normal mode, and the conveyance path selection means selects the conveyance path when the perforation mode is selected by the switching means. The sheet conveying system according to claim 1.   3. An input means capable of inputting information on a bending direction of a sheet-like recording material that is easy to break or a bending direction that is difficult to break, and capable of displaying a message and an image that support the input. The sheet conveying system described.

Images