JP2013006360A - Double-sided printing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double-sided printing device capable of more accurately inputting surface printing position information and back face printing position information.SOLUTION: In the double-sided printing device 10, paper on a paper feeding tray 21 is carried to a printing unit 4, and the printing unit 4 applies first printing processing to the paper. Then, the paper is carried to a paper discharge tray 32, is carried from the paper discharge tray 32 to a paper refeeding tray 51, and is reversed and carried from the paper refeeding tray 51 to a printing unit 4. In the printing unit 4, second printing processing is applied to the paper, and the paper is carried to the paper discharge tray 32. The double-sided printing device 10 includes: an operation panel 9 having a display part 902 displaying first printing position information for the first printing processing and second printing position information for the second printing processing and an input part 901 inputting change of the position information displayed on the display part 902; and a control part 11 controlling operation of the double-sided printing device 10. The display part 902 switches between a first screen indicating the first printing position information and a second screen indicating the second printing position information for display.

Description

  The present invention relates to a duplex printing apparatus that performs printing on both sides of a sheet.

  Conventionally, in order to reduce paper consumption, a duplex printing apparatus that performs printing on both sides of a sheet has been used. Patent Document 1 discloses a double-sided printing apparatus capable of collectively inputting front-side printing position information for front-side printing processing and back-side printing position information for back-side printing processing.

JP 2008-179456 A

  Here, in the double-sided printing apparatus as disclosed in Patent Document 1, since the paper subjected to the front surface printing process is subjected to the back surface printing process through the refeed tray inside the apparatus, The front surface print position information and the back surface print position information are input in a lump without checking the state of the paper after the print process and before the back surface print process.

  On the other hand, as another double-sided printing device, the front-side printed paper is discharged to a paper discharge tray where the paper can be visually recognized, and then printed on the back side through a refeed tray, and then discharged again to the paper discharge tray. There is something that is. In such a double-sided printing apparatus, the vertical (top / bottom) direction of the paper that has been printed on the front surface and discharged to the paper discharge tray and the vertical (top / bottom) direction of the paper that has been printed on the back surface and discharged to the paper discharge tray are divided. When the front surface print position information and the back surface print position information are input at once, there is a possibility that the input in the vertical (top / bottom) direction is mistaken.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide double-sided printing that can more reliably input front-side print position information and back-side print position information in a double-sided printing apparatus in which a sheet subjected to front-side printing processing is once discharged to a paper discharge tray. Is to provide a device.

  In the present invention, the paper on the paper feed tray is transported to the printing unit, the first printing process is performed by the printing unit, the paper is transported to the paper discharge tray, and the paper is transported from the paper discharge tray to the paper refeed tray. In the double-sided printing apparatus, the first printing position information for the first printing process and the second printing process in which the second printing process is performed by the printing unit and the sheet is conveyed to the paper discharge tray. An operation panel, comprising: a display unit that displays second print position information for the second printing process; and an input unit that inputs a change in the position information displayed on the display unit; A control unit that controls the operation of the printing apparatus, and the display unit switches between a first screen indicating the first print position information and a second screen indicating the second print position information. It is specially designed to display To.

  According to the configuration, since the screen showing the print position information is switched and displayed, it is possible to input the print position while confirming the print position information in the print process, and as a result, the input of the print position information in the first print process In addition, it is possible to more reliably input the print position information in the second print process.

The present invention preferably further comprises the following configuration.
(1) The control unit determines whether the printing unit is performing the printing process of the first printing process or the second printing process, based on a determination result of the determination unit and the determination unit Display control means for controlling the display unit so that the first screen is displayed during the first printing process and the second screen is displayed during the second printing process.
(2) The control unit includes input control means for controlling the input unit so as to prohibit the input of the first print position information during the second printing process.
(3) The input unit includes an interlock input unit for inputting an interlock instruction for associating the second print position information with the first print position information, and the control unit includes the interlock instruction. When the second print process is input, the display unit is controlled to display the second print position information corresponding to the first print position information as the second screen during the second print process. Means.
(4) In the configuration (3), when the change of the second print position information is input in a state where the interlock instruction is input and the second screen is displayed, the control unit performs the interlock control. An interlock release means for releasing the operation of the means is provided.

  According to the configuration (1), since the printing position information in the printing process is displayed on the display unit by the control unit, the printing position information of the printing process is input on a screen of the printing process different from the printing process. It is possible to make it difficult to make mistakes. That is, it is possible to make it less likely that an error occurs in which the second print position information is input on the first screen or the first print position information is input on the second screen.

  According to the configuration (2), even if the first screen is displayed at the time of the second printing process, the printing position information cannot be input. Therefore, the second printing position information is displayed on the first screen. You can prevent the mistake of entering.

  According to the configuration (3), the second print position information can be easily associated with the first print position information by the interlock control unit.

  According to the configuration (4), even when an interlock instruction for associating the second print position information with the first print position information is input, the interlock is easily released by the interlock release unit, and the second print position information Can be changed.

  In short, according to the present invention, it is possible to provide a double-sided printing apparatus that can more reliably input front side printing position information and back side printing position information.

It is the schematic of the double-sided printing apparatus which concerns on this invention. It is a block diagram which shows the outline | summary of a structure of a duplex printing apparatus. It is a top view which shows an operation panel. It is a figure explaining the action | operation of a duplex printing apparatus. FIG. 5 is a diagram for explaining the operation of the double-sided printing apparatus following FIG. 4. FIG. 6 is a diagram for explaining the operation of the double-sided printing apparatus following FIG. 5. It is a figure which shows the basic display state of the operation panel of FIG. It is a surface screen which shows the surface printing position information at the time of moving a surface printing position 10 mm to ground direction. It is a surface screen which shows the surface printing position information at the time of moving a surface printing position 10 mm to the top direction. As shown in FIG. 8, it is a back screen showing back surface print position information when the front surface print position is moved 10 mm in the ground direction. As shown in FIG. 9, it is a back surface screen showing back surface print position information when the front surface print position is moved 10 mm upward.

  FIG. 1 is a schematic view of a duplex printing apparatus 10 according to the present invention. For convenience of explanation, the upstream side of the paper feeding direction and the transport direction M1 will be described as “front side”, and the downstream side of the paper feed direction and the transport direction M1 will be described as “rear side”.

  As shown in FIG. 1, in the double-sided printing apparatus 10, a paper feed unit 2 is disposed at the front lower part of the printing machine main body 1, and a paper discharge unit 3 is disposed at the rear lower part of the printing machine main body 1. A printing unit 4 is disposed between the paper feeding unit 2 and the paper discharge unit 3 in the front-rear direction. The paper feeding unit 3 is disposed in front of the paper discharge unit 3 and below the printing unit 4. Is arranged. A plate making unit 6 is disposed at the front upper part of the printer main body 1, and a plate discharging unit 7 is disposed at the rear upper part of the printer main body 1. An image reading unit 8 is disposed on the upper side of the printing machine main body 1. The duplex printing apparatus 10 transports the paper in the paper feeding unit 2 to the printing unit 4, performs the first printing process by the printing unit 4, transports the paper to the paper discharge unit 3, and refeeds the paper from the paper discharge unit 3 to the paper refeed unit 5. Then, it is conveyed to the printing unit 4, subjected to the second printing process by the printing unit 4, and conveyed to the paper discharge unit 5.

  The sheet feeding unit 2 includes a sheet feeding tray 21, a sheet feeding roller 22 and a suction member 23 disposed at the rear end of the sheet feeding tray 21, and a pair of timing rollers 24 disposed behind the sheet feeding roller 22. It is equipped with. The paper feed roller 22 and the separating member 23 are configured to take out the sheets stacked on the paper feed tray 21 one by one from the top. The timing roller 24 is operated at an appropriate timing in synchronism with the rotation of the plate cylinder 41 of the printing unit 4 so that printing can be performed at a predetermined position on the sheet, and the sheet taken out by the sheet feeding roller 22 and the sheet member 23 is transferred to the plate. It feeds into the barrel 41.

  The paper discharge unit 3 includes an air suction type transport belt mechanism 31, a paper discharge tray 32, and a base guide 33. The paper discharge unit 3 conveys the paper printed by the printing unit 4 backward while sucking air by the transport belt mechanism 31 and discharges the paper onto the paper discharge tray 32.

  The paper discharge tray 32 includes an end plate 322, and the end plate 322 moves forward so that the paper on the paper discharge tray 32 is delivered to the refeed unit 5. The base guide 33 is movable in the vertical direction. When the paper is transported to the paper discharge tray 32 by the transport belt mechanism 31, the base guide 33 is disposed between the paper discharge unit 3 and the paper refeed unit 5 below. When the paper is transported from the paper discharge tray 32 to the paper re-feed unit 5, the upper opening between the paper discharge unit 3 and the paper re-feed unit 5 is opened. It is designed to be in the open position.

  The printing unit 4 includes a cylindrical plate cylinder 41 on which an stencil sheet that has been subjected to pre-making is mounted on an outer peripheral surface, and a pressing roller 42 that is opposed to the plate cylinder 41 so as to come into contact with and separate from below. The printing unit 4 sandwiches the paper between the rotating plate cylinder 41 and the pressing roller 42 and conveys the paper in the M1 direction, while using the ink supplied from the plate cylinder 41 to print the image of the stencil sheet on the paper. It is designed to be transferred to the upper surface.

  The paper re-feed unit 5 receives the first printed paper stacked on the paper discharge tray 32 from the paper discharge unit 3 and the paper on the paper re-feed tray 51 from the top. A sheet refeeding roller 52 and a separating member 54 for picking up and conveying the sheets one by one; and one or more pairs of intermediate conveying rollers 53 for conveying the sheet conveyed from the sheet refeeding roller 52 toward the printing unit 4. Yes. The refeed unit 5 transports the sheets on the refeed tray 51 one by one from the top to the timing roller 24 of the sheet feed unit 2 by the sheet refeed roller 52, the intermediate transport roller 53, and the buckling member 54. It is supposed to be.

  The plate making unit 6 includes a stencil sheet roll 61, a thermal head 62, and a platen roller 63 that contacts the thermal head 62. The plate making unit 6 makes the stencil sheet taken out from the stencil sheet roll 61 based on the image data read by the image reading unit 8 with the thermal head 62, and the stencil sheet after the plate making is printed on the plate cylinder 41 of the printing unit 4. It is designed to be mounted on the outer peripheral surface.

  The plate discharging unit 7 includes a plate discharging housing 71, a pair of upper and lower drawing rollers 72 attached to the front upper end of the housing 71, and a base paper storage roll 73 inserted into the housing 71. The drawing roller 72 is located at a position corresponding to the rear upper end portion of the plate cylinder 41, and rotates by sandwiching the leading end portion of the stencil sheet after printing mounted on the outer peripheral surface of the plate cylinder 41. The stencil sheet after use of printing is wound around a base paper storage roll 73 in the housing 71.

  FIG. 2 is a block diagram illustrating an outline of the configuration of the duplex printing apparatus 10. The duplex printing apparatus 10 includes a control unit 11 and an operation panel 9 that control the operation of the duplex printing apparatus 10, that is, the operation of each unit. The operation panel 9 includes an input unit 901 for inputting print position information and the like, and a display unit 902 for displaying the print position information and the like. In addition, the input unit 901 includes an interlock input unit 9011 for inputting an interlock instruction for associating the second print position information for the second print process with the first print position information for the first print process. I have.

  The control unit 11 includes a determination unit 111, a display control unit 112, an input control unit 113, an interlock control unit 114, and an interlock release unit 115. The discriminating means 111 discriminates whether the printing unit 4 is performing the first printing process or the second printing process. Based on the determination result of the determination unit 111, the display control unit 112 displays a first screen indicating the first print position information during the first print process, and a second screen indicating the second print position information during the second print process. The display unit 902 is controlled so as to display. The input control unit 113 controls the input unit 901 so as to prohibit the input of the first print position information during the second print process. When the interlock instruction is input from the interlock input unit 9011, the interlock control unit 114 controls the display unit 902 so as to display the second print position information corresponding to the first print position information during the second printing process. It is supposed to be. The interlock release means 115 cancels the operation of the interlock control means 114 when a change in the second print position information is input after the interlock instruction is input by the interlock input unit 9011.

  FIG. 3 is a top view showing the operation panel 9. The operation panel 9 includes a touch panel unit 91, a setting key 92, a reset key 93, a ten key 94, a control key 95, a plate making key 96, a print key 97, a stop key 98, a test pret key 99, It has. The touch panel unit 91 configures a display unit 902 that displays print position information and the like, and also configures an input unit 901 that inputs print position information and the like by touching. When an error occurs, a message is displayed on the touch panel unit 91.

  On the other hand, the setting key 92, the reset key 93, the numeric keypad 94, the control key 95, the plate making key 96, the print key 97, the stop key 98, and the test print key 99 constitute an input unit 901. The setting key 92 is used when a specific function is used. The reset key 93 is used when returning the setting of the touch panel 91 to the standard mode. The numeric keypad 94 is used when inputting the number of prints or inputting a numerical value. The control key 95 is used when inputting a print density, a print position, and a print speed. The plate making key 96 is used when starting plate making. The print key 97 is used when printing is started. A stop key 98 is used when printing is stopped halfway. The test print key 99 is used when printing only one sheet.

  4 to 6 are diagrams for explaining the operation of the double-sided printing apparatus 10. Hereinafter, the outline of the operation of the double-sided printing apparatus 10 will be described with reference to FIGS. 1 and 4 to 6.

  As shown in FIG. 1, the plate making unit 6 makes a stencil sheet taken out from the stencil sheet roll 61 with a thermal head 62 based on the data of the image (surface image) read by the image reading unit 8, and after the plate making. The stencil sheet N1 is mounted on the outer peripheral surface of the plate cylinder 41 of the printing unit 4.

  Next, the paper feed roller 22 and the separator member 23 take out the paper P1 (not printed on the front and back surfaces) stacked on the paper feed tray 21 one by one from the top. The timing roller 24 is operated at an appropriate timing in synchronism with the rotation of the plate cylinder 41 of the printing unit 4 so that printing can be performed at a predetermined position of the paper P1, and the taken-out paper P1 is fed into the plate cylinder 41 of the printing unit 4. .

  Then, the printing unit 4 sandwiches the paper P1 between the rotating plate cylinder 41 and the pressing roller 42, and conveys the paper P1 in the M1 direction, while using the ink supplied from the plate cylinder 41, the stencil base paper N1. The surface image formed on the surface is transferred (first printing process) to the upper surface (front surface) of the paper P1. Hereinafter, the first printing process is referred to as “surface printing process”.

  Then, as shown in FIG. 4, the paper discharge unit 3 conveys the paper P <b> 2 that has been subjected to surface printing processing by the printing unit 4 to the rear by the conveyance belt mechanism 31 and discharges it onto the paper discharge tray 32. At this time, the base guide 33 is located at the closing position, and aligns the leading ends of the sheets P2 stacked on the sheet discharge tray 32.

  On the other hand, in the stencil discharge unit 7, the drawing roller 72 rotates while pinching the leading end of the stencil sheet N 1 mounted on the outer peripheral surface of the plate cylinder 41, so that the stencil sheet N 1 is stencil sheet storage roll 73 of the housing 71. Wrapped around.

  After the stencil sheet N1 is removed from the plate cylinder 41, the plate making unit 6 uses the thermal head 62 to remove the stencil sheet taken out from the stencil sheet roll 61 on the basis of the image (back image) data read by the image reading unit 8. Plate making is performed, and the stencil sheet N2 after plate making is mounted on the outer peripheral surface of the plate cylinder 41 of the printing unit 4.

  Then, as shown in FIG. 5, by the forward movement of the end plate 322, the paper discharge unit 3 causes the paper P2 stacked on the paper discharge tray 32 to be subjected to surface printing processing in the refeed direction (M2). Direction) to the refeed unit 5. At this time, the base guide 33 is located at the open position. Then, as shown in FIG. 6, the base guide 33 moves to the closing position, and the refeed roller 52 and the separator member 54 take out the paper P2 received from the paper discharge unit 3 one by one from the top, The paper feed roller 52 and the intermediate transport roller 53 transport the taken paper P2 to the timing roller 24 of the paper feed unit 2 so that the printed surface is the lower surface and the unprinted back surface is the upper surface.

  The timing roller 24 is operated at an appropriate timing in synchronization with the rotation of the plate cylinder 41 of the printing unit 4, and feeds the paper P <b> 2 to the plate cylinder 41 of the printing unit 4 with the unprinted back surface as the upper surface. The printing unit 4 sandwiched the paper P2 between the rotating plate cylinder 41 and the pressing roller 42 and transported it in the transport direction M1, and was made on the stencil sheet N2 by ink supplied from the inside of the plate cylinder 41. The back image is transferred (second printing process) to the upper surface (back surface) of the paper P2. Hereinafter, the second printing process is referred to as “back surface printing process”.

  The paper P3 that has been subjected to the back side printing process by the printing unit 4 is conveyed rearward by the conveying belt mechanism 31 and is discharged onto the paper discharge tray 32.

  On the other hand, in the stencil discharge unit 7, the drawing roller 72 sandwiches and rotates the front end portion of the stencil sheet N 2 mounted on the outer peripheral surface of the plate cylinder 41, so that the stencil sheet N 2 becomes the stencil sheet storage roll 73 of the housing 71. Wrapped around.

  FIG. 7 is a diagram showing a basic display state of the operation panel 9 of FIG. FIGS. 8 and 9 are diagrams showing a first screen (hereinafter referred to as “front surface screen”) indicating first print position information (hereinafter referred to as “front surface print position information”) displayed on the operation panel 9. FIGS. 10 and 11 are diagrams showing a second screen (hereinafter referred to as “back side screen”) showing second print position information (hereinafter referred to as “back side print position information”) displayed on the operation panel 9. Hereinafter, the operation procedure of the duplex printing apparatus 10 will be described with reference to FIGS. The operation procedure described here is the operation procedure of the duplex printing apparatus 10 when the duplex printing process is performed while adjusting the printing position by inputting the printing surface information and the printing surface information on the back surface.

  The user presses the setting key 92 on the operation panel 9 of the duplex printing apparatus 10. Then, various setting screens (not shown) are displayed on the touch panel unit 91, and the user touches “finish confirmation” on the screen. Next, the user touches “both sides” on the touch panel unit 91 shown in FIG. 7 to designate double-sided printing, and sets a document on the image reading unit 8.

  When the user presses the plate making key 96, the image reading unit 8 reads the surface of the document. When the image reading unit 8 starts reading the surface of the original, the plate making unit 6 starts making the surface of the original on the stencil sheet. When the reading of the surface of the original of the image reading unit 8 is completed, the message “Place the next original” is displayed on the touch panel unit 91, and the user sets the original upside down on the image reading unit 8 and makes the plate making key 96. Press again. Then, the image reading unit 8 reads the back side of the document.

  On the other hand, when the plate-making on the surface of the original is finished, the plate-making unit 6 winds the stencil stencil sheet that has already been made around the plate cylinder 41, and the printing unit 4 prints only one surface image on the surface of the paper. The single sheet subjected to the front surface printing process is discharged to the discharge tray 32.

  The user checks whether or not the front surface printing position information is appropriate by looking at the front surface printed paper discharged to the paper discharge tray 32. If it is not appropriate, the printing position key of the control key 95 is pressed. Then, the determination unit 111 of the control unit 11 determines that the surface printing process is being performed, and the display control unit 112 displays a surface screen as shown in FIG. 8 on the touch panel unit 91. Here, in order to move the front surface print position to the left (downward direction of the print image, that is, the ground direction), the ground direction movement unit 911 is touched, and the front surface print position is changed to the right (upward direction of the print image, that is, the top). In order to move in the direction), the celestial direction moving unit 912 is touched. Further, in order to move the front surface printing position in the paper width direction, the paper width direction moving unit 913 is touched. As the number of touches / time increases, the amount of movement of the front surface printing position is increased, and the amount of movement is displayed on a movement amount display unit 914. FIG. 8 is a surface screen when the surface printing position is moved 10 mm in the ground direction, and FIG. 9 is a surface screen when the surface printing position is moved 10 mm in the top direction. In FIG. 8, on the right side of the front screen, the paper surface-printed (printed with the letter “A”) according to the front surface printing position information is shown. Similarly, in FIG. The paper on which surface printing (printing of the letter “A”) is performed by the surface printing position information is shown. As shown in FIGS. 8 and 9, the movement direction indicated by the movement display unit 914 corresponds to the movement direction of the front surface printing position on the paper discharged to the paper discharge tray 32.

  When the input of the front surface printing position information is completed, the user presses the test print key 99. Then, only one sheet subjected to the front surface printing process according to the input front surface printing position information is discharged to the paper discharge tray 32. The user checks whether or not the front surface printing position is appropriate by looking at the front surface printed paper discharged to the paper discharge tray 32. If not, repeat the above work. When the front surface printing position is appropriate, the OK unit 916 is touched. When the back surface position information is made to correspond to the front surface print position information, the interlock input unit 915 is touched. In this operation procedure, the interlock input unit 915 is touched.

  The user inputs the number of prints using the ten key 94 and presses the print key 97. As a result, the input number of sheets subjected to the front surface printing process are discharged to the discharge tray 32. The paper discharged to the paper discharge tray 32 is sent to the refeed tray 51.

  On the other hand, when the surface printing process is finished, the plate discharge unit 7 removes the stencil sheet that has been made from the plate cylinder 41 and collects it. The plate making unit 6 starts plate making of the back side of the document on the stencil sheet from the back side data of the document read by the image reading unit 8. When the plate making on the back side of the original is completed, the plate making unit 6 winds the stencil stencil sheet on the plate cylinder 41, and the printing unit 4 prints only one back image on the back side of the paper fed from the refeed tray 51. To do. The single sheet subjected to the back surface printing process is discharged to the discharge tray 32. Here, the interlock control unit 114 of the control unit 11 displays the back surface print position information corresponding to the front surface print position information on the touch panel unit 91 because the interlock input unit 915 is touched.

  The user confirms whether or not the back surface printing position is appropriate by looking at the paper subjected to the back surface printing process that has been discharged to the paper discharge tray 32. If it is not appropriate, the printing position key of the control key 95 is pressed. Then, the interlock release unit 115 of the control unit 11 cancels the operation of the interlock control unit 114, the determination unit 111 determines that the back side printing process is being performed, and the display control unit 112 displays the touch panel unit 91 on the touch panel unit 91. A back screen as shown in FIG. 10 is displayed. Since the operation of the interlock control unit 114 is released on the back screen, the interlock input unit 915 shown in FIGS. 8 and 9 is not displayed. Here, in order to move the back side print position to the left (upward direction of the print image, that is, the top direction), the top direction moving unit 917 is touched, and the back side print position is set to the right (downward direction of the print image, that is, local In order to move it in the direction), the ground direction moving unit 918 is touched. Further, in order to move the back side printing position in the paper width direction, the paper width direction moving unit 913 is touched. As the number of touches / time increases, the amount of movement of the back surface printing position increases, and the amount of movement is displayed on the movement amount display unit 914.

  Here, since the back link screen was initially input with an interlocking instruction, the back surface print position information corresponding to the front surface print position information is displayed. For example, when the front surface print position is moved 10 mm in the ground direction, As shown in FIG. 10, the back surface printing position has already moved 10 mm in the ground direction. That is, to make the back surface printing position information correspond to the front surface printing position information means to make the back surface printing position information coincide with the front surface position information. In the double-sided printing apparatus 10, the top and bottom of the paper discharged to the paper discharge tray 32. Since the direction is reversed between the front surface printing process (FIG. 8) and the back surface printing process (FIG. 10), the moving direction shown on the movement display unit 914 is shown with the top and bottom reversed in FIGS. It is. Then, if the ground direction moving unit 918 is touched once, the back surface printing position is further moved 1 mm in the ground direction and moved 11 mm in the ground direction as a whole. FIG. 11 is a back screen showing back surface print position information when the front surface print position is moved 10 mm in the top direction as shown in FIG. 9. In FIG. 10, on the right side of the back screen, the paper on which the back surface printing process ("B" is printed) is shown by the back surface printing position information. Similarly, in FIG. , The paper subjected to the back surface printing process (printing “B”) is shown by the back surface printing position information. As shown in FIGS. 10 and 11, the movement direction indicated by the movement display unit 914 corresponds to the movement direction of the back surface printing position of the paper discharged to the paper discharge tray 32.

  When inputting the back surface print position information, if the user wants to confirm the front surface print position information, the front surface switching tab 919 is touched. Then, the front screen is displayed on the touch panel unit 91. At this time, the input control means 113 of the control unit 11 prohibits the input of the front surface printing position information. Further, when the front surface screen is displayed on the touch panel unit 91 and the back surface switching tab 920 is touched, the back surface screen is displayed on the touch panel unit 91.

  When the input of the back surface printing position information is completed, the user presses the test print key 99. Then, only one sheet subjected to the back surface printing process at the input back surface printing position is discharged to the paper discharge tray 32. The user confirms whether or not the back surface printing position is appropriate by looking at the paper subjected to the back surface printing process that has been discharged to the paper discharge tray 32. If not, repeat the above work. If the back side printing position is appropriate, the OK unit 916 is touched.

  The user inputs the number of prints using the ten key 94 and presses the print key 97. Then, the input number of printed sheets on the reverse side are discharged to the discharge tray 32.

  According to the double-sided printing apparatus 10 having the above configuration, the following effects can be exhibited.

(1) On the touch panel unit 91, the front screen showing the front surface print position information and the back screen showing the back surface print position information are switched and displayed, so that the print position can be input while checking the print position information in the printing process. As a result, it is possible to more reliably input the front surface printing position information in the front surface printing process and the back surface printing position information in the back surface printing process.

(2) Since the display control unit 112 controls the touch panel unit 91 to display the front screen during the front surface printing process and to display the rear surface screen during the back surface printing process, the display control unit 112 is a screen of a printing process different from the printing process. It is possible to make it difficult to generate an error of inputting the printing position information of the printing process. That is, it is possible to make it less likely that an error occurs in which the back surface print position information is input on the front screen or the front surface print position information is input on the back screen.

(3) Since the input control unit 113 controls the input unit 901 so as to prohibit the input of the front surface printing position information during the back surface printing process, even if the front surface screen is displayed during the back surface printing process, , Surface printing position information cannot be entered. Therefore, it is possible to prevent an error that the back side print position information is input on the front side screen.

(4) By the interlock input unit 9011 and the interlock controller 114, the back surface print position information can be easily associated with the front surface print position information.

(5) Even when an interlock instruction for associating the back surface print position information with the front surface print position information is input, the interlock cancellation unit 115 can easily cancel the interlock and change the back surface print position information.

  In the above embodiment, after the print position key of the control key 95 is pressed, the print position information is input on the touch panel 91. However, the print position information may be input using the print position key of the control key 95, and the touch panel 91 may be used only for confirming the print position information. The print position information may be input by using the print position key of the control key 95 and the touch panel 91 in combination.

  In the above embodiment, the input control means 113 prohibits the input of the front surface print position information during the back surface printing process. However, the control unit 11 may not include the input control unit 113 and may allow the front surface printing position information to be input during the back surface printing process. In this case, the front side print position information input at the time of the back side printing process is applied when the front side printing process is performed on another document after the back side printing process is completed. When the surface printing process is not performed and a predetermined time (for example, 1 minute or 5 minutes) elapses, the input surface printing position information is preferably canceled.

  In the above-described embodiment, it is possible to check the front surface printing position information by touching the front surface switching tab 919 at the time of the back surface printing process, but at the back surface printing process, even if the front surface switching tab 919 is touched, The surface print position information may not be displayed. Further, the front surface switching tab 919 may not be displayed during the back surface printing process.

  In the above-described embodiment, it is possible to move the back surface printing position in the paper width direction by touching the paper width direction moving unit 913 during the back surface printing process. The print position may not be adjusted. This is because, in the double-sided printing apparatus 10 of the above-described embodiment, the front-to-back printing process and the back-side printing process have the opposite paper top direction but the same paper width direction. This is because it is not necessary to move the printing position in the paper width direction in the back side printing process if it is moved in the direction. In this case, the interlock control unit 114 operates to associate the paper width direction position information of the front surface printing position with the paper width direction position information of the back surface printing position.

  In the above embodiment, the print position information is input before the print key 97 is pressed. However, it may be possible to input the print position information even after the print key 97 is pressed. That is, when the double-sided printing apparatus 10 is stopped due to a paper jam or a stop key 98 being pressed during the printing process, the printing position information can be input again.

  In the above-described embodiment, the operation procedure of the duplex printing apparatus 10 in the case where the duplex printing process is performed while adjusting the printing position by inputting the printing surface information and the back surface printing position information has been described. When the back side printing position is not input, the double-sided printing apparatus 10 can perform double-sided printing processing fully automatically. The operation procedure in this case is as follows.

  The user touches “both sides” on the basic screen of the touch panel unit 91 to designate double-sided printing, and sets a document on the image reading unit 8.

  When the user presses the plate making key 96, the image reading unit 8 reads the surface of the document. When the image reading unit 8 starts reading the surface of the original, the plate making unit 6 starts making the surface of the original on the stencil sheet. When the reading of the surface of the original of the image reading unit 8 is completed, the message “Place the next original” is displayed on the touch panel unit 91, and the user sets the original upside down on the image reading unit 8 and makes the plate making key 96. Press again. Then, the image reading unit 8 reads the back side of the document.

  The user inputs the number of prints using the ten key 94 and presses the print key 97. As a result, the input number of sheets subjected to the front surface printing process are discharged to the discharge tray 32. The paper discharged to the paper discharge tray 32 is sent to the refeed tray 51.

  When the front surface printing process is completed, the plate discharge unit 7 removes the stencil sheet that has been made from the plate cylinder 41 and collects it. The plate making unit 8 starts plate making of the back side of the document on the stencil sheet from the back side data of the document read by the image reading unit 8. When the plate making on the back side of the document is completed, the plate making unit 6 winds the stencil sheet after making the plate, and the printing unit 4 prints the back image on the back side of the paper fed from the refeed tray 51. The inputted number of printed sheets of the back side printed paper are discharged to the paper discharge tray 32.

  The present invention is not limited to the configuration described in the above embodiment, and can include various modifications that can be considered by those skilled in the art without departing from the content described in the claims.

  In the present invention, a double-sided printing apparatus that can more reliably input the front surface printing position information and the back surface printing position information can be provided, and thus the industrial utility value is great.

DESCRIPTION OF SYMBOLS 1 Printer main body 2 Paper feed unit 21 Paper feed tray 22 Paper feed roller 23 Sakiki member 24 Timing roller 3 Paper discharge unit 31 Conveyor belt mechanism 32 Paper discharge tray 322 End plate 4 Printing unit 41 Plate cylinder 42 Pressing roller 5 Refeed Unit 51 Refeed tray 52 Refeed roller 53 Intermediate transport roller
54 Sabaki member 6 Plate making unit 61 Stencil paper roll 62 Thermal head 63 Platen roller 7 Plate discharging unit 71 Housing 72 Pull-in roller 73 Base paper storage roll 8 Image reading unit 9 Operation panel 901 Input unit 902 Display unit 91 Touch panel unit 92 Setting key 93 Reset key 94 numeric keypad 95 control key 96 plate making key 97 print key 98 stop key 99 test print key 10 double-sided printing device 11 control unit P1 paper (both sides are not printed)
P2 Paper with front side printing P3 Paper with back side printing after front side printing

Claims (5)

The paper on the paper feed tray is transported to the printing unit, is subjected to the first printing process by the printing unit, transported to the paper discharge tray, transported from the paper discharge tray to the paper refeed tray, and from the paper refeed tray. In a double-sided printing apparatus that is turned over and transported to the printing unit, second printed by the printing unit and transported to the paper discharge tray,
A display unit that displays first print position information for the first print process and second print position information for the second print process, and an input for inputting a change in the position information displayed on the display unit An operation panel comprising:
A control unit for controlling the operation of the duplex printing apparatus,
The double-sided printing apparatus, wherein the display unit is configured to switch between a first screen showing the first print position information and a second screen showing the second print position information. .
The control unit determines whether the printing unit is performing the printing process of the first printing process or the second printing process;
Display control means for controlling the display unit to display the first screen during the first print processing and to display the second screen during the second print processing based on the determination result of the determination means. The double-sided printing apparatus according to claim 1, further comprising:
The said control part is provided with the input control means which controls the said input part so that the input of the said 1st printing position information may be prohibited at the time of the said 2nd printing process. Double-sided printing device.
The input unit includes an interlock input unit for inputting an interlock instruction for causing the second print position information to correspond to the first print position information,
When the interlock instruction is input, the control unit displays the second print position information corresponding to the first print position information as the second screen during the second print process. The double-sided printing apparatus according to any one of claims 1 to 3, further comprising interlocking control means for controlling the display unit.
  The control unit releases the operation of the interlock control unit when the change of the second print position information is input in a state where the interlock instruction is input and the second screen is displayed. The duplex printing apparatus according to claim 4, further comprising:

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