JP2000127591A - Stencil printing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To visually recognize the progresses of a plate forming action. SOLUTION: A stencil printing equipment executes a stencil printing by thermally processing desired images on a stencil paper, winding a thermally processed stencil paper on a cylindrical plate cylinder, conveying a printing paper between the plate cylinder and a roller member urged onto the outer peripheral surface of the plate cylinder and transferring the ink passed through the processed region of the stencil paper onto the printing paper for stencil printing. This stencil printing equipment has an indicator 3A, which is divided into a plurality of displaying regions (a), (b), (c) and (d) in response to respective processing contents of a plate forming action. In the indicator, at the start of the plate forming action, all the displaying regions (a), (b), (c) and (d) are lit. At every inputting of signals indicating respective action events such as plate delivery, processing, plate installation, fast printing and the like, the displaying regions corresponding to the action events are lit out in succession.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stencil printing machine for stencil printing a desired image on a stencil sheet, and transferring ink from a perforated portion of a stencil area of the stencil sheet to printing paper to perform stencil printing. .

[0002]

2. Description of the Related Art A stencil printing machine having a stencil making function winds a stencil sheet on which a desired image is made in a stencil making section around a printing drum body, and rolls a printing paper fed from a paper feeding section with a roller and a printing drum. The ink is transferred from the perforated portion of the stencil sheet of the stencil sheet to the printing paper by pressing against the stencil sheet to obtain a printed matter of a desired image.

[0003]

By the way, when stencil printing is performed by the stencil printing apparatus, if a series of operations relating to the apparatus are known, the progress of the operation can be grasped. However, an actual operator generally lacks knowledge of the device. In particular, when a person unfamiliar with the device operates, knowing the progress of the operation of the device gives a sense of security in operation.

In the stencil printing apparatus, when the number of prints is set and the start key is pressed, printing is performed in accordance with the stencil image.
I had to rely on experience.

Accordingly, an object of the present invention is to provide a stencil printing apparatus capable of visually confirming a stencil making operation time and a printing operation time as well as the progress of the stencil making operation.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a desired image is perforated and made on a stencil sheet 37, and the stencil sheet 37 having been formed is stenciled into a cylindrical plate cylinder 4.
4, the printing paper 61 is pressed and conveyed between the plate cylinder 44 and the roller member 51 disposed opposite to the plate cylinder 44, and the ink passing from the plate making area of the stencil sheet 37 is In the stencil printing apparatus 1 that performs stencil printing by transferring to the printing paper 61, a display that displays at least one of a stencil operation state after the start of the stencil operation, a time until the end of the stencil operation, or a time until the end of the printing operation. Part 103;
The display unit 1 according to a plate making operation state or a printing operation state.
And control means 104 for successively updating the display contents of No. 03.

According to a second aspect of the present invention, in the stencil printing apparatus 1 according to the first aspect, the control means 104 receives a signal indicating each operation event such as plate discharging, plate making, plate making, and first printing during the plate making operation. Each time it is performed, a display indicating the progress of the operation event displayed on the display unit 103 is updated.

According to a third aspect of the present invention, in the stencil printing apparatus 1 according to the second aspect, the display unit 103 is divided into a plurality of display areas a, b, c, and d corresponding to each processing content of the stencil making operation. The control means 10
Numeral 4 controls all the display areas a, b, c, and d of the indicator 103A to be turned on or off at the start of the plate making operation, and indicates respective operation events such as plate discharging, plate making, plate making, and first printing during the plate making operation. Each time a signal is input, the display areas a, b, c, and d corresponding to the operation event are sequentially turned off or on.

According to a fourth aspect of the present invention, in the stencil printing apparatus 1 of the first aspect, there is provided an input means 102 for inputting a stencil making instruction to the stencil sheet 37, and the control means 104 receives a stencil making instruction from the input means 102. Is input, the initial plate making time required until the end of the plate making operation is calculated based on the original size of the plate making source, the magnification of the original, and the paper size of the printing paper 61, and the operation event is calculated. Each time a signal is input, the elapsed time from the start of plate making is subtracted from the required time of plate making at the initial stage to calculate the remaining time until the end of the plate making operation. The time until the end of the plate making operation, which is displayed in (1), is updated.

According to a fifth aspect of the present invention, there is provided the stencil printing apparatus 1 of the first aspect, wherein an input means 102 for inputting a print instruction on the printing paper 61, information on the number of prints and a printing speed, and stencil printing and discharging. Paper detecting means 84 for detecting the printing paper 61 to be printed. When the control means 104 receives a print instruction from the input means 102, the control means 104 performs the printing operation based on the information on the number of prints and the printing speed. The initial required printing time until the end is calculated, and every time a detection signal is input from the paper detecting means 84, the input means 10
The remaining number of prints is calculated by subtracting the number of prints input from 2 by 1 to calculate the remaining number of prints and the input means 102.
Calculating the remaining time until the end of the printing operation based on the printing speed input from the CPU, and updating the time until the end of the printing operation displayed on the display unit 103 based on the calculated remaining time. And

According to the present invention, the progress of the plate making operation is displayed on the display unit, so that the progress of the plate making operation can be accurately displayed, and even a user unfamiliar with the apparatus can visually check the progress of the plate making operation. can do.

Further, the required printing time calculated from the number of prints and the printing speed is displayed on the display unit simultaneously with the start of the printing operation, and the display time is updated each time the number of remaining prints is reduced, so that the user is not accustomed to the apparatus. The user can visually check the time until the end of printing.

[0013]

FIG. 1 is a side view showing the overall configuration of a stencil printing apparatus according to the present invention. First, the overall configuration of the stencil printing apparatus 1 will be described with reference to FIG.

As shown in FIG. 1, a stencil printing apparatus 1 includes a document reading unit 2, an automatic document feeder (hereinafter, referred to as an ADF).
3, a plate making section 4, a printing section 5, a sheet feeding section 6, a sheet discharging section 7, and a plate discharging section 8.

The document reading unit 2 includes a line image sensor 1
1, an original placing glass table 12, a pressure plate 13, and a target glass plate 14. The line image sensor 11
While being supported by the guide rail 15, it is guided by the guide rail 15 and horizontally moved in the left-right direction of FIG. A document serving as a source of plate making such as a sheet of paper or a book is placed on the document placing glass table 12.
The pressure plate 13 is provided on the original placing glass table 12 so as to be openable and closable. An original sheet is supplied to the target glass plate 14 by the ADF 3.

When reading an original, the line image sensor 11 moves the lower part of the original placing glass table 12 below the reference sign A in FIG.
The scanning movement is performed at a predetermined speed between the home position position indicated by the symbol and the scan end position indicated by the symbol B. When reading a document using the ADF 3, the line image sensor 11 reads the target glass plate 14 indicated by the symbol C in FIG.
Is fixedly located just below the.

The original reading unit 2 includes an original mounting glass table 12
A document set sensor 16 for detecting that a document has been set thereon is provided. The detection signal of the document set sensor 16 is input to the control unit 104 described later.

The ADF 3 has a document set tray 21, a document pickup roller 22, a document discharge tray 23, and a document feed roller 24. A plurality of document sheets are stacked and placed on the document set tray 21. The document pickup roller 22 feeds the document sheets on the document set tray 21 one by one toward the target glass plate 14. The document discharge tray 23 receives the document sheet after the reading is completed. The document feed roller 24 is
They are arranged on both sides of the target glass plate 14 in the document discharge direction. The document feed roller 24 scans and feeds the document sheet from the document set tray 21 onto the target glass plate 14 at a predetermined speed, and feeds the document sheet from the target glass plate 14 to the document discharge tray 23.

The ADF 3 has an optical ADF for detecting that a document sheet is set on the document set tray 21.
A document set sensor 25 is provided. The detection signal of the ADF original set sensor 25 is transmitted to a control unit 10 described later.
4 is input.

In the ADF 3, original sheets set on an original set tray 21 are picked up one by one by an original pickup roller 22, and the original feed rollers 24.
And reaches the target glass plate 14. When passing over the target glass plate 14, the original image is read by the line image sensor 11 located below the target glass plate 14. The document sheet for which the reading has been completed is discharged to the document discharge tray 23 by the document feed roller 24.

The plate making section 4 has a base paper roll section 31, a thermal head 32, a platen roller 33 disposed opposite the thermal head 32, a base paper feed roller 34, a base paper guide roller 35, and a base paper cutter 36. Base paper roll unit 31
The stencil sheet 37 composed of a single thermoplastic resin film or a laminate of a thermoplastic resin film and a porous support is stored in a continuous sheet in a roll form. The thermal head 32 is composed of a plurality of dot heating elements arranged in a line in the width direction of the stencil sheet 37.

In the plate making section 4, the line image sensor 11
, Image information based on the read original image is input, and the point heating elements of the thermal head 32 individually and selectively generate heat according to the input image information. In this way, thermal perforation stencil making is performed on the stencil paper 37 in a dot matrix manner,
The stencil sheet 37 of one plate length after plate making is cut by the stencil cutter 36.

The printing section 5 has a drum 41, an ink supply mechanism 42, and a press roller section 43. Drum 41
Is provided with a plate cylinder 44 that is driven by a drive mechanism including a drive motor (not shown) in a counterclockwise direction in FIG. 1 around its own rotation center axis while being supported by a drum support (not shown). I have. The plate cylinder 44 has a porous structure having an ink passage property. The stencil sheet 3 having one end clamped by a stencil clamping section 45 provided on the outer peripheral surface of the stencil sheet 3.
7 is wound and mounted.

From the printing section 5, a signal indicating an operation event for shifting to the first print processing after the end of the plate processing is input to the control means 104 described later. The signal indicating the operation event is, for example, the plate cylinder 44.
Can be obtained by an encoder or the like connected to a drive motor (not shown) that rotationally drives the plate cylinder 44 so as to generate a one-shot pulse signal when one rotation is made.

The drum 41 and a drum support (not shown)
A clamp position sensor 46 is provided for detecting a position (a position shown in FIG. 1) at which the stencil sheet 37 after plate making can be clamped on the stencil clamp section 45. Clamp position sensor 4
Reference numeral 6 includes a light shielding plate 46a provided on the drum 41, and an optical sensor 46b such as a photodiode that blocks light when the light shielding plate 46a rotates as the drum 41 rotates. The detection signal of the clamp position sensor 46 is input to a control unit 104, which will be described later, as a signal indicating an operation event in which the plate making process ends and the process shifts to the plate making process.

The ink supply mechanism 42 provided inside the plate cylinder 44 includes a squeegee roller 47 that rotates with the rotation of the plate cylinder 44 while contacting the inner peripheral surface of the plate cylinder 44, and a squeegee roller 47 that contacts the outer peripheral surface of the squeegee roller 47. A doctor rod 48 and an ink reservoir 49 are disposed at a predetermined interval from each other.

When the plate cylinder 44 is rotated in the counterclockwise direction in FIG. 1, the squeegee roller 47 also rotates in the same direction as the plate cylinder 44 in synchronization with the rotation of the plate cylinder 44. This allows
The printing ink in the ink reservoir 49 is supplied to the inner peripheral surface of the plate cylinder 44 via the outer peripheral surface of the squeegee roller 47.

The press roller unit 43 has a press roller 51 disposed below the plate cylinder 44 and selectively pressed and urged toward the outer peripheral surface of the plate cylinder 44 by a drive mechanism (not shown). .

The paper supply unit 6 includes a paper supply table 62, a paper supply roller 6
3. A timing roller 64 is provided. The printing paper 61 is stacked on the paper feed table 62. Paper feed roller 6
Reference numeral 3 denotes one sheet at a time taken out of the uppermost printing sheet 61 from the sheet feeding table 62. The timing roller 64 feeds the printing paper 61 between the plate cylinder 44 and the place roller 51.

On the paper feed table 62, the loaded printing paper 61
Is provided with a paper size detection sensor 65 for detecting the paper size (width, length). 2A and 2B show an example of the configuration of the paper size detection sensor 65. FIG. In addition,
In describing the paper size detection sensor 65, the direction perpendicular to the transport direction of the printing paper 61 is defined as the main scanning direction, and the transport direction of the printing paper 61 is defined as the sub-scanning direction.

Referring to FIGS. 2A and 2B, the paper feed table 62
A pair of widthwise fences 66, 66 formed in a plate shape so as to abut on the both ends in the width direction of the loaded printing paper 61 to guide and hold the printing paper 61, are disposed to face each other. Each of the width direction fences 66, 66 is provided with a bar-shaped fence rack 67, 67. Fence rack 67
Is provided in the paper feed table 62 so as to extend in the width direction of the printing paper 61 along the surface of the paper feed table 62. The fence racks 67, 67 are fixed at predetermined intervals in the length direction of the printing paper 61 with the rack teeth facing each other.

A rotary circular gear 68 that meshes with the rack teeth of each fence rack 67 is provided at the center of the leading end of the paper feed table 62 on the paper feed side. Circular gear 68
Is mounted with a potentiometer 69 whose output (voltage) changes in conjunction with the rotation of the circular gear 68.

At one end of the printing paper 61 in the length direction,
2 and the widthwise fence 6 with respect to the paper feed table 62 with respect to the center of the paper width of the printing paper 61.
When the printing papers 6 and 66 are operated together with the printing paper 61, the fence racks 67 and 67 simultaneously move in opposite directions to rotate the circular gear 68. As a result, the output of the potentiometer 69 attached to the circular gear 68 changes. Then, the width of the printing paper 61 is detected by the output of the potentiometer 69 when the both width direction fences 66 abut on both ends in the width direction of the printing paper 61.

At the center of the other end of the paper feed table 62, the printing paper 61 is contacted with the other end of the loaded printing paper 61 in the longitudinal direction.
A lengthwise fence 70 formed in a plate shape is provided so as to guide and hold 1 in the lengthwise direction. A bar-shaped fence rack 71 is provided on the lengthwise fence 70. The fence rack 71 extends in the length direction of the printing paper 61 along the surface of the paper feed tray 62 and is provided in the paper feed tray 62. A rotary circular gear 72 is provided in mesh with the rack teeth of the fence rack 71. The circular gear 72 outputs (voltage) in conjunction with the rotation of the circular gear 72.
Is attached.

The one end of the printing paper 61 in the length direction is connected to the paper feeding table 6.
2 and the lengthwise fence 7 with respect to the paper feed table 62 based on the center of the paper width of the print paper 61.
When 0 is operated in conjunction with the printing paper 61, the fence rack 71 moves and the circular gear 72 rotates. Thus, the potentiometer 7 attached to the circular gear 72
The output of No. 3 changes. Then, the length of the printing paper 61 is detected by the output of the potentiometer 73 when the lengthwise fence 70 contacts the other end of the printing paper 61 in the length direction.

As described above, in the paper size detection sensor 65 shown in FIGS. 2A and 2B, two sets of potentiometers 69 and 70 are attached to the movement of the fences 66 and 70 in the width direction and the length direction of the printing paper 61. The paper width and the paper length of the printing paper 61 are detected by the output of 73. And Table 1 below
As shown in the figure, the paper size of the printing paper 61 on the paper feed table 62 is detected based on the values obtained from the two potentiometers 69 and 73, and the size information of the standard size or the irregular size is obtained. The paper size detection sensor 65 at this time
Is input to the control means 104 described later.

[0037]

[Table 1]

The timing roller 64 includes the sheet feeding roller 6
A paper sensor 74 for detecting the presence or absence of the printing paper 61 sent from the printer 3 is provided. The paper sensor 74 is composed of, for example, a pair of a light emitter and a light receiver, and blocks light from the light emitter when the printing paper 61 is fed from the timing roller 64 to the plate cylinder 44. On the other hand, when the printing paper 61 is not sent to the timing roller 64, the light from the light emitter is received by the light receiver.
The detection signal of the paper sensor 74 is transmitted to a control unit 10 described later.
4 is input.

The paper discharge unit 7 includes a peeling claw 81, a paper discharge table 8
2. It has a belt-conveyor-type paper discharge / conveyance device 83. The stripping claw 81 strips the printed printing paper 61 from the plate cylinder 44. The paper discharge tray 82 has loaded thereon the printed printing paper 61. The paper discharging and conveying device 83 prints the printing paper 6 peeled off from the plate cylinder 44 by the peeling claw 81.
1 is conveyed to a paper discharge table 82.

A paper sensor 84 for detecting the presence or absence of the printing paper 61 conveyed to the paper discharge tray 82 is provided on the exit side of the paper discharge conveyance device 83, that is, on the paper discharge table 82 side. The paper sensor 84 can be composed of, for example, a pair of a light emitter and a light receiver, similarly to the paper sensor 74 provided on the timing roller 64. The detection signal of the paper sensor 84 is input to a control unit 104 described later. Further, a detection signal when the passage of the print paper 61 is detected after the plate sensor 84 receives a plate is input to a control unit 104 described later as a signal indicating an operation event in which the first print processing is completed.

In stencil printing, the plate cylinder 44 is driven to rotate around its own central axis in the counterclockwise direction in FIG. The printing paper 61 is moved by the timing roller 64 from the left to the right in FIG.
Sent between and. As a result, the printing paper 61 is pressed against the stencil sheet 37 on the outer peripheral surface of the plate cylinder 44 by the press roller 51, and stencil printing is performed on the printing paper 61 in a pressing manner.

The printed printing paper 61 is removed from the stripping claw 8
1 and is stripped from the plate cylinder 44 by the
Is transported to the paper discharge tray 82, and is stacked and placed on the paper discharge tray 82 with the print image surface facing upward.

The plate discharge section 8 has a plate discharge separation claw 91, a plate discharge box support 92, and a plate discharge roller 93. The stencil separation claw 91 peels the stencil sheet 37 wrapped around the outer peripheral surface of the plate cylinder 44 from the plate cylinder 44. The plate discharge box support 92 holds the plate discharge box 94 in which the discharged stencil sheet 37 is stored so as to be able to be taken out.
The plate discharge roller 93 feeds the stencil sheet 37 peeled off from the plate cylinder 44 by the plate discharge separation claw 91 into the plate discharge box 94.

At the entrance of the plate discharge box 94, a photoelectric discharge sensor 95 is provided. The plate discharging sensor 95 detects that the stencil sheet 37 is sent into the plate discharging box 94. The detection signal of the plate discharge sensor 95 is input to a control unit 104, which will be described later, as a signal indicating an operation event at which the plate discharge process ends and the process proceeds to the plate making process.

An operation panel 101 operated by a user is provided on the upper surface of the apparatus. Operation panel 1
Reference numeral 01 denotes a ten key 102a for setting the number of prints, a printing speed, and the like, a plate making start key 102b for starting a plate making operation, and a print start key 102c for starting a printing operation, as shown in FIG. An operation key 102 as an input means including a stop key 102d and the like is provided for stopping the operation. Various information from the operation keys 102 is input to a control unit 104 described later. At this time, a signal when the plate making start key 102b is pressed is input to the control means 104, which will be described later, as a signal indicating an operation event for starting a plate making operation and shifting to plate discharging processing.

The operation panel 101 is provided with a display unit 103 made of, for example, a liquid crystal. The display unit 103
The number of prints and various messages input and set by the operation keys 102 are displayed. Further, the display unit 103 displays the plate making operation status (plate discharging, plate making, plate making, first printing) after the start of the plate making operation under the control of the control unit 104 described later, and also shows the time required for plate making until the plate making operation ends (remaining time). ) And the required printing time (remaining time) up to the end of the printing operation are numerically displayed (digitally displayed) at predetermined positions in the display area.

Here, an example in which the state of the plate making operation after the start of the plate making operation is displayed on the display unit 103 will be described with reference to FIG. The display unit 103 shown in FIG. 4 has an indicator 103A consisting of a display bar divided into a plurality of display areas corresponding to each processing content of the plate making operation. In the example of FIG.
The indicator 103A is composed of one display bar divided into four display areas a, b, c, and d for plate discharging, plate making, plate making, and first printing. Indicator 103A
Means that when the plate making start key 102b of the operation panel 101 is pressed, all the display areas a, b, c, and d are turned on, and each time the processing shifts to the processes of plate discharging, plate making, plate making, and first printing. The display area of the processing to be performed is turned off one after another. For example, in the state where the process has shifted to the plate making process, as shown in FIG. 4C, the plate discharge display area a and the plate making display area b are turned off.

In the indicator 103A, all the display areas a, b, c and d are turned on at the start of the plate making operation.
The configuration is such that the display area of the corresponding process is turned off one after another every time the process shifts to each process of plate discharging, plate making, plate making, and first printing, but is not limited to this configuration. For example, at the start of the plate making operation, all the display areas a, b, c, and d are turned off, and the display area of the corresponding processing is turned on one by one each time the processing shifts to each of the plate discharging, plate making, plate making, and first printing. It may be configured.

FIG. 5 is a functional block diagram showing an electrical configuration of the stencil printing apparatus 1. As shown in FIG. In FIG. 5, a ROM 105 and a RAM 106 as storage means are connected to a control means 104 constituted by a microprocessor or the like.

The ROM 105 controls the driving of the original reading unit 2, the automatic original feeder 3, the stencil making unit 4, the printing unit 5, the paper feeding unit 6, the paper discharging unit 7, and the plate discharging unit 8 which constitute the stencil printing mechanism 9. Program for performing and display unit 10 of operation panel 101
A program for performing the display control of No. 3 is stored.

The RAM 106 stores various kinds of setting information including the number of prints and the printing speed input through the operation keys 102 of the operation panel 101, operation start information 102b of the operation keys 102, operation start information by the print start key 102c, and stop information. It stores operation stop information by the key 102d and the like.

The control unit 104 executes information stored in the operation key 102 of the operation panel 101 according to a program stored in the ROM 105 to execute a series of operations.
Various information stored in the RAM 106 and detection signals from various sensors (the clamp position sensor 46, the paper sensor 74,
84, a stencil discharge sensor 95, etc.) to control the drive / stop of each part of the stencil printing mechanism 9.

The control means 104 displays the state of the stencil making operation after the start of the stencil making operation, the time required for the stencil making until the end of the stencil making operation, and the time required for the printing until the end of the printing operation, in parallel with the control of each part of the stencil printing mechanism 9. A display process for sequentially updating and displaying the data in the unit 103 is executed.

More specifically, when the plate making start key 102b of the operation panel 101 is depressed, the control means 104 displays the plate making operation status after the start of the plate making operation on the display section 103, and displays the plate making required time. Has been initialized. When the print start key 102c of the operation panel 101 is pressed from the standby state after plate making, the display unit 1
03, the display of the required printing time until the end of the printing operation is initialized.

The control means 104 controls the above-mentioned plate discharging, plate making,
The display on the display unit 103 is controlled so that the display of the plate making operation information is updated each time a signal indicating each operation event of the plate making and the first printing is acquired. For example, plate discharge sensor 95
When a signal indicating an operation event is acquired from FIG.
As shown in FIG.
The display area a of 3A is turned off.

The control means 104 has a timer 104a as a time measuring means inside. Timer 104a
The timer starts when the plate making start key 102b of the operation panel 101 is pressed.

The control means 104 controls the required plate making time (discharge + plate making + plate making +
Total printing time). The plate making time is calculated based on the original size of the original to be read by the original reading unit 2, the magnification of the read size when reading the original, and the paper size input from the paper size detection sensor 65.

The control means 104 obtains the time measured by the timer 104a (timer information) at each time when each of the operation events is obtained, and obtains the timer 104a from the plate making required time displayed on the display unit 103 until then. Is calculated by subtracting the measured time. The display on the display unit 103 is controlled so that the time obtained by the above calculation is updated and displayed on the display unit 103 as the required time for plate making indicating the remaining time until the end of the plate making operation.

The control means 104 calculates the required printing time (time required until the printing operation is completed) displayed on the display unit 103 at the time of the initialization. The required printing time is calculated from the number of prints and the printing speed input and set by the operation keys 102 of the operation panel 101.

The control means 104 has a counter 104b as counting means in addition to the timer 104a. The counter 104b counts a detection signal indicating the passage of the printing paper 61 input from the paper sensor 84,
This count value is recognized as the current number of prints.
The control means 104 determines that the count value of the counter 104b is 1
Each time it is incremented, the count of the number of prints stored in the RAM 106 is decremented by one to calculate the remaining number of prints. Then, the required printing time is recalculated from the calculated remaining number of prints and the printing speed input and set by the operation key 102. Further, the display on the display unit 103 is controlled so that the time obtained by the recalculation is updated and displayed on the display unit 103 as the required printing time indicating the remaining time until the end of the printing operation.

FIGS. 6 to 8 are operation flowcharts of the display processing executed by the control means 104 together with the control of the stencil printing operation. 6 is an operation flowchart relating to a display process of a plate making operation status after the start of the plate making operation, FIG. 7 is an operation flowchart relating to a display process of a plate making required time after the start of the plate making operation, and FIG. 8 is a display process of a print required time until the end of the printing operation. 2 shows an operation flowchart relating to FIG.

When the master making start key on the operation panel 101 is set to 1
When the master making operation is started by pressing 02b (ST1),
The control means 104 initializes the display of the plate making operation status on the display section 103 of the operation panel 101 (ST2). Specifically, as shown in FIG. 4, the display of all the display areas a, b, c, and d of the indicator 103A of the display unit 103 is turned on.

Each time the control means 104 obtains a signal indicating each of the above-described operation events of plate discharging, plate making, plate making, and first printing (ST3), the display section of the operation panel 101 according to the content of the signal. The display of the plate making operation status at 103 is updated (ST4).

More specifically, the processing shifts to the plate discharging process, and the detection signal of the plate discharging sensor 95 is used as an operation event signal by the control means 1.
When input is made to the display 04, as shown in FIG. 4B, the display of the plate discharge display area a of the indicator 3A is turned off. Thereafter, the process proceeds to the plate making process, and when the detection signal of the clamp position sensor 46 is input to the control means 104 as a signal of the operation event, as shown in FIG.
The display up to the display area b of the plate making is turned off. Subsequently, when a detection signal indicating that the plate cylinder 44 has made one rotation is input to the control unit 104 as a signal of an operation event in the printing process, as shown in FIG. The display up to the display area c of the plate is turned off. Further, if the detection signal of the paper sensor 84 is input to the control unit 104 as a signal of the operation event after shifting to the first printing, FIG.
As shown in (e), up to the display area d of the first print of the indicator 3A, that is, all the display areas a,
The display of b, c, d turns off.

The above process is repeated until the plate making operation is completed. When the prepress operation ends (ST5-Yes), the process of displaying the prepress operation status is ended.

When the plate making operation is started (ST1) in parallel with the display processing, the control means 104 operates the operation panel 1
The display of the required time for plate making on the display unit 103 is initialized (ST11). The required plate making time is calculated from the original size of the original to be read by the original reading unit 2, the magnification of the read size when reading the original, and the paper size input from the paper size detection sensor 65. Thereafter, the control means 104 starts the internal timer 104a (S
T12). The control unit 104 updates the display of the plate making operation time on the display unit 103 of the operation panel 101 with the timer information (time measurement time) of the timer 104a when the signal indicating the operation event is obtained (ST13).
14). This operation is repeated until the plate making operation is completed.

When the prepress operation is completed (ST15)
-Yes), the display process of the plate making time is ended, and the fact that the plate making operation is ended is displayed on the display unit 103. For example, a comment such as "Plate making is completed" is displayed.

Next, after the plate making operation is completed, in the standby state of the apparatus, the number of prints is set and input by the operation keys 102 of the operation panel 101 (ST21), and the print speed is further set and input (ST22). Thereafter, when the print start key 102c of the operation panel 101 is pressed, printing is started (ST23).

When the printing is started, the control means 104 initializes the display of the required printing time on the display section 103 of the operation panel 101 (ST24).

Thereafter, the control means 104 controls the paper sensor 8
Each time a detection signal is input from step 4, the count value of the counter 104b is incremented by one, and the count value of the number of prints stored in the RAM 106 is decremented by one to obtain information on the current number of prints (ST25). And
The control means 104 includes an operation key 102 of the operation panel 101
The required print time (remaining print time) is recalculated from the print speed set and input by the user and the remaining number of prints (ST2).
6). The control unit 104 updates the display of the required printing time on the display unit 103 of the operation panel 101 based on the calculation result (ST27). The above operation is repeated until the count value of the number of prints stored in the RAM 106 becomes zero. When the count value of the number of printed sheets becomes 0 (ST28-Yes), the display processing of the printing time is ended.

As described above, according to the stencil printing apparatus 1 of the above embodiment, the change of the progress of the stencil making operation is displayed on the display section 103 of the operation panel 101 as the easy-to-see indicator 103A by the above-described display processing. The progress of the plate making operation can be displayed at a glance even if the user is unfamiliar with the apparatus.

Further, at the same time when the printing operation is started, the operation panel 1
The required printing time calculated from the number of prints set and input from the 01 operation key 102 and the printing speed is displayed on the display unit 103, and the display time (remaining print time) of the display unit 103 is displayed each time the remaining number of prints is reduced. Is updated, so that even a user unfamiliar with the apparatus can visually confirm the time until the end of printing at a glance. As a result, it is possible to handle the device without particularly giving a user unfamiliar with the device anxiety.

The stencil printing apparatus 1 according to the above-described embodiment is configured such that the stencil sheet 37 having the stencil formed around the outer peripheral surface thereof is wound around the perforated plate cylinder 44 having an ink supply mechanism inside. The stencil printing is performed by pressing the printing paper 61 fed from the printer roller 41 against the plate cylinder 44 by the press roller 51, but the present invention is not limited to this configuration.

For example, JP-A-1-204781, JP-A-3-254984, and JP-A-7-132671
Can also be used for a plate-making printing apparatus having a configuration described in Japanese Patent Application Laid-Open Publication No. H10-260, 1988. The plate-making printing apparatuses described in these publications are provided with a flexible plate cylinder, a back-press roller, and a middle-press roller. The flexible plate cylinder has a flexible peripheral wall portion having an ink passing structure, and a stencil sheet is wound around the outer peripheral surface of the flexible peripheral wall portion. The backing roller is provided in parallel with the flexible plate cylinder at a predetermined interval with respect to the flexible peripheral wall portion. The intermediate press roller extends in the flexible plate cylinder in parallel with one generatrix of the flexible plate cylinder, and presses the flexible peripheral wall portion radially outward to back-press the flexible peripheral wall portion. The movable peripheral portion is movably provided between a bulging deformation position where the bulging deformation is performed and a steady position where the bulging deformation of the flexible peripheral wall portion is released.

In the plate-making printing apparatus having the above configuration, the printing paper fed from the paper feeding section between the flexible plate cylinder and the back-pressing roller in a state where the intermediate pressing roller is located at the swelling deformation position. The stencil printing process is performed by pressing the stencil.

[0076]

As is clear from the above description, according to the present invention, at least one of the change in the progress of the plate making operation and the plate making processing time is displayed on the display section, so that the accurate progress of the plate making operation is achieved. The display can be performed, and even a user unfamiliar with the apparatus can visually confirm the progress of the plate making operation.

In addition, regardless of the plate making process, the required printing time calculated from the number of prints and the printing speed is displayed on the display unit simultaneously with the start of the printing operation, and the display time is updated each time the remaining number of prints is reduced. Therefore, even a user unfamiliar with the apparatus can visually check the time until printing is completed.

[Brief description of the drawings]

FIG. 1 is a side view showing the overall configuration of a stencil printing apparatus according to the present invention.

FIG. 2 (a) is a plan view showing one configuration example of a paper size detection sensor of a stencil printing apparatus according to the present invention, and FIG.

FIG. 3 is a plan view showing a configuration example of an operation panel in the stencil printing machine of FIG. 1;

4A to 4E are diagrams showing examples of display of a stencil making operation state after the start of the stencil making operation on the display unit of the stencil printing apparatus of FIG. 1;

FIG. 5 is a functional block diagram showing an electrical configuration of the stencil printing apparatus of FIG. 1;

FIG. 6 is an operation flowchart relating to a display process of a plate making operation state after the start of the plate making operation.

FIG. 7 is an operation flowchart relating to a display process of a required time of plate making after the start of the plate making operation.

FIG. 8 is an operation flowchart relating to a display process of a required printing time until the printing operation is completed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... stencil printing machine, 37 ... stencil paper, 44 ... plate cylinder, 51
... press roller (roller member), 61 ... printing paper, 84
... paper sensor (paper detection means), 102 ... operation keys (input means), 103 ... display unit, 103A ... indicator,
104: control means, ad: display area.

Claims (5)

[Claims] A stencil sheet is formed by perforating a desired image on a stencil sheet, and the stencil sheet thus formed is wound around a cylindrical plate cylinder, and the stencil sheet is rolled with a roller member disposed opposite to the plate cylinder. In the stencil printing apparatus that performs stencil printing by transferring the printing paper between the stencil sheet and the ink passing from the stencil area of the stencil sheet, the stencil printing operation state after the start of the stencil operation, or until the end of the stencil operation And a control unit for sequentially updating the display content of the display unit in accordance with the plate making operation state or the printing operation state. A stencil printing machine characterized by the following. 2. The control unit according to claim 1, wherein each time a signal indicating an operation event such as plate discharging, plate making, plate making, first printing, or the like during the plate making operation is input, the operation event is displayed on the display unit. 2. The stencil printing apparatus according to claim 1, wherein a display indicating the progress is updated. 3. The display section has an indicator divided into a plurality of display areas corresponding to each processing content of the plate making operation, and the control means displays all of the indicators at the start of the plate making operation. The area is controlled to be turned on or off, and every time a signal indicating each operation event such as plate discharging during plate making operation, plate making, plate making, first printing is input, the display area corresponding to the operation event is sequentially turned off or 3. The stencil printing apparatus according to claim 2, wherein lighting control is performed. 4. An input means for inputting a stencil making instruction to the stencil sheet, wherein the control means, when an stencil making instruction is inputted from the input means, an original size as a stencil making source and a magnification of the original And calculating an initial plate making time required until the end of the plate making operation based on the paper size of the printing paper, and each time a signal indicating the operation event is input, the elapsed time from the start of plate making is calculated at the initial time. 2. The stencil printing machine according to claim 1, wherein a remaining time until the end of the stencil making operation is calculated by subtracting from the required time of the stencil making operation, and a time until the end of the stencil making operation displayed on the display unit is updated based on the calculated remaining time. Printing device. 5. An image forming apparatus comprising: input means for inputting an instruction for printing on the printing paper, information on the number of prints, and printing speed; and paper detecting means for detecting printing paper discharged after stencil printing. When a print instruction is input from the input unit, an initial required printing time until the end of the printing operation is calculated based on the information on the number of prints and the printing speed, and a detection signal is output from the paper detection unit. Each time you enter
The remaining number of prints is calculated by subtracting 1 from the number of prints input from the input means, and the remaining time until the end of the printing operation is calculated based on the remaining number of prints and the print speed input from the input means. The stencil printing apparatus according to claim 1, wherein the stencil printing apparatus calculates and updates the time until the end of the printing operation displayed on the display unit based on the calculated remaining time.