JP3056540B2 - Stencil printing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hole capable of writing a plurality of original images in a well-balanced manner in an image writing area.
The present invention relates to a plate making and printing apparatus .

[0002]

2. Description of the Related Art Heretofore, for example, a copying machine and a stencil type stencil printing apparatus have been known as image forming apparatuses for writing and processing a document image signal read by a CCD or the like in a document reading section.

In the above-described copying apparatus, an original image signal is sent to an original image writing section including a laser or a light emitting diode to write an image on a photoreceptor to form an electrostatic latent image. The toner added to the image is transferred to a copy sheet to create a copy.

In a stencil type stencil printing machine, etc.,
Making a stencil on the stencil at the stencil writing section consisting of a thermal head and a platen roller based on the original image signal, winding the stencil on the printing drum,
Thereafter, printing is performed by transferring the ink that has been extruded from the printing drum and passed through the original image formed on the stencil sheet to the printing paper.

In the above-described image forming apparatus, for example, a so-called continuous shooting function of writing two images of a B5 size document side by side on a copy having a B4 size document writing area may be used. is there.

When these continuous shooting functions are used, for example, in the case of a stencil type stencil printing machine, the following control is performed.

First, after a continuous shooting key is set, the first shot to be continuously shot is set.
At the same time when the original is read by the plate making reading unit, the original image is written on the stencil paper by the plate making writing unit composed of the thermal head and the platen roller, and the plate making reading unit detects the end of reading of the first document. Is
The rotation of the platen roller is stopped, and the writing by the thermal head is temporarily stopped.

Next, when the reading of the second document is started, writing is started by the thermal head in the same manner as described above to make a plurality of pages of stencil printing of a plurality of documents, and then the stencil sheet is wound around a drum to perform printing.

[0009]

By the way, in the conventional image forming apparatus as described above, a continuous photographing function is used, for example, two B5 size originals are arranged side by side on a copy having an A3 size original image writing area. When copying, the copied image of the B5 size document is left-justified with respect to the A3 size copy.

In other words, the image of the B5 size document, which is the second document, is copied across the center line of the A3 size copy.
There is a drawback that inconveniences occur when a three-size copy is cut from the center line and used, or when used in bag binding.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object the purpose of using the continuous shooting function regardless of the size of the original and the copy to be used. An object of the present invention is to provide a stencil printing machine capable of writing images of a plurality of originals in a well-balanced manner on both sides of a center line of a set copy object as a boundary.

[0012]

In order to achieve the above object, the invention of claim 1 is directed to an original read by a plate making reading section.
Copy the original image from the thermal head and platen roller.
Plate making on the stencil paper at the stencil writing section
A stencil-type stencil printing machine that prints by wrapping a stencil paper around a drum
The stencil paper in the direction of conveyance of the stencil area
A continuous printing prepress setting means for setting the prepress of the draft;
Printing paper size detection means for detecting the size of the printing paper;
The stencil original is placed in a plurality of equally divided areas for each printing paper size.
Indicates the area where the perforated image is to be formed in the papermaking area transport direction.
Write amount data storage means for storing write amount data
And multi-side plate making is set by the continuous printing plate making setting means.
The print size detected by the paper size detection means
Referring to the writing amount data based on the paper size,
The original images of a plurality of originals read by the plate
Equally allocated to each within multiple equally divided areas of print paper
The stencil sheet is made into a stencil
Control means for controlling a plate writing unit,
The formation area of the perforated image indicated by the data is for printing.
An area that is a predetermined amount before the line that divides the paper equally, and that line
And a region after a predetermined amount has passed . Further, according to the invention of claim 2, the plate reading unit
Thermal image and platen roller
The stencil making section consisting of
A stencil type stencil making the stencil sheet wrapped around a drum for printing
In the printing apparatus, the stencil paper is moved
Continuous printing plate making setting means to set plate making for multiple originals
And a print paper size detector that detects the size of the print paper
Step and the plurality of equally divided areas for each printing paper size.
The area where a perforated image should be formed in the stencil
Write amount data storage to store write amount data indicating the area
Means and multi-sided plate making by the continuous printing plate making setting means
When the mark is detected by the paper size detecting means.
Refer to the writing amount data based on the printing paper size before
Original image of the first original read by plate-making reading unit
At a position a predetermined amount before the plurality of equally divided area lines.
And transfer the stencil sheet to the plural
Repeat until the position exceeds the specified amount of the divided area line, and
According to the start of reading of the original by the plate making reading unit
The plate making writing is performed so as to make the plate making of the second original image.
Control means for controlling the write unit,
The formation area of the perforated image indicated by
The area that is a predetermined amount before the line to be divided and the line
It is characterized by comprising an area after exceeding a certain amount . According to a third aspect of the present invention, the writing amount data is stored in a stencil making area of the stencil sheet in a plurality of equally divided areas of each printing paper size.
It is characterized by comprising plate making amount data indicating a region where a perforated image is to be formed in the region direction and platen feed amount data at the time of plate making.

[0013]

According to the present invention, the data is indicated by the write amount data.
The area where the perforated image to be formed is
Area before the specified amount, and after exceeding the line by the specified amount
Area and marked by the continuous printing plate making setting means.
When multiple surface plate making for printing paper is set, together based on the size of the printing paper control means detected, the mark
Based on the writing amount data to be divided into a plurality of planes, which is called from the writing amount data storage means in the original image writing area corresponding to the size of the printing paper , control is performed so that multiple writing of the original image is equally allocated. regardless of the size of the document to be used in plane writing, a plurality of images to be copied, without straddling a plurality equipartition regions lines of printing paper to be used, yet each of the plurality equipartition regions line as a central The images are equally allocated and copied so that the images are always accommodated in the plurality of equally divided areas without being connected. Therefore, bag binding using equal division lines
When stitching, the image may be hidden by the stitched part.
It is convenient for stapling.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG . 1 shows a stencil type stencil printing machine according to the present invention .
FIG. 1 is a side sectional view showing one embodiment . As shown in FIG. 1, the present apparatus includes a plate making reading unit 1 serving as a document reading unit, a plate making writing unit 2 serving as a document image writing unit, a cutter unit 3, and a copying unit. It comprises a printing unit 4.

The plate making reading section 1 includes a document set table 12 on which a document 7 to be copied is set, and a document sensor 1 for detecting the document 7 set on the document set table 12.
7, a document feed roller pair 14 that is driven to rotate by a detection signal of a document sensor 17, a contact image sensor 11 that optically reads an image of the fed document 7 and converts it into an electric signal, and an image sensor 11. And a document discharge roller pair 15 for discharging the document 7 read by the scanner 7 to a document discharge tray 19.

The original IN sensor 16 detects the conveyed original 7 to determine the start of the plate making writing unit 2 described later.

The pair of original transport rollers 14 and the pair of original discharge rollers 15 are driven to rotate by a stepping motor 18 as shown by dotted lines in FIG.

The stencil making unit 2 includes a thermal head 21 having a plurality of heating elements 21 a, a platen roller 24 that conveys the stencil sheet 23 sent from the stencil sheet roll 22 against the thermal head 21, and a thermal head 21. The stencil sheet 23 is made up of a pair of stencil conveying rollers 26 that convey the stencil sheet 23 that has been stenciled toward a clamp portion 32 of a drum 33 described later.

Note that the write motor 25 shown by a dotted line
Denotes a stepping motor, which rotationally drives the platen roller 24 and the stencil conveying roller pair 26.

The cutter unit 3 includes a cutter 31 for cutting the stencil sheet 23 when the stencil sheet 23 produced by the thermal head 21 has a predetermined length wound around the drum 33.

The printing section 4 is loaded on a drum 33 having an ink supply section for supplying a fixed amount of ink to an inner surface thereof from an ink reservoir 58 formed between a doctor roller 56 and a squeegee roller 57, and on a paper feed table 44. A pickup roller 46 for picking up and conveying the printing paper 43 one by one from the printing paper to be copied, and a pickup roller 4
6, a timing roller 42 for feeding out the printing paper 43 conveyed from the printer 6 at a predetermined timing; a press roller 35 for pressing the printing paper 43 sent out from the timing roller 42 against the outer peripheral surface of the drum 33; Claw 55 for peeling off from the drum 33
And a discharge tray 49 for discharging and stacking the printing paper 43 stripped and discharged from the drum 33.

On the outer peripheral surface of the drum 33, a clamp portion 32 for clamping the leading end of the stencil sheet 23 made and conveyed by the thermal head 21 is provided. Is wound around its outer peripheral surface by rotating.

The main motor 34 indicated by a dotted line in FIG.
Is a DC motor for rotating the drum 33. Reference numeral 41 denotes a transport path.

FIG. 1B is a plan view of the above-described paper feed table 44 when viewed from above. The paper feed table 44 is movable so as to fix the paper feed position of the printing paper 43. A left fence 45a and a right fence 45b are provided,
The left fence 45a and the right fence 45b are provided with a copy size detection unit 47 including a potentiometer or the like for detecting the amount of movement of the left fence 45a and the size of the printing paper 43.

The paper feed table 44 is provided with a paper sensor 48 for detecting whether the printing paper 43 to be loaded is placed vertically or horizontally.

FIG. 2 shows an operation panel 5 in the stencil type stencil printing apparatus constructed as described above. On this operation panel 5, a start key 50 for starting stencil making or printing and a continuous shooting mode are set. A multi-sided writing setting means for copying and setting the original image signal optically read by the plate-making reading section 1 so that the multi-sided writing is performed on the printing paper 43 by the plate making writing section 2; Numeric keys 52 for inputting the number of sheets, etc.
L indicating that the continuous shooting mode is set by pressing the continuous shooting key 51 or the number of prints input from the ten keys 52
A display device 54 such as a CD is provided.

FIG. 3 is a control block diagram of the stencil printing machine configured as described above. In FIG. 3, reference numeral 60 denotes control means having a CPU for controlling the operation of the entire apparatus.

Numeral 61 denotes a storage unit composed of a RAM, which stores the number-of-printed-sheets data and the continuous shooting mode setting data input from the operation panel.

Reference numeral 62 denotes a write amount data composed of a ROM.
Data storage means.
As writing amount data, first edition amount of and feed amount data of the platen roller 24 of the stencil sheet 23, when the continuous shooting mode is executed, the equally divided areas in accordance with the size of the printing paper 43 to be used The table stores stencil making amount data indicating an area where a stencil image is to be formed , platen roller feed amount data related thereto, and also stores a program shown in the flowchart of FIG.

Reference numeral 47 denotes a copy object size detecting means for outputting a signal corresponding to the size data of the printing paper 43 when set on the paper feed table 44; 63, a plate making reading section driving circuit for driving the plate making reading section 1; Reference numeral 64 denotes a plate making writing unit driving circuit for driving the plate making writing unit 2, and 65 denotes a printing unit driving circuit for driving the printing unit 4.

Next, the operation of the stencil type stencil printing apparatus configured as described above will be described with reference to the flowchart shown in FIG.

In this case, as shown in FIG. 5B, the stencil making area 23a of the stencil sheet 23 has the size of X'.times.Y '.
X × Y B as shown in FIG.
A case will be described in which one sheet of a 5-size document 7 is used to make a plate and print in which the images of the document 7 are arranged side by side as shown in FIG. 5C.

First, when the original 7 is set on the original table 12 and the leading end of the original 7 is brought into contact with the original conveying roller pair 14, the original sensor 1
7 detects this original 7 and displays on the display device 54 that the plate making operation is possible, and when the continuous shooting key 51 is depressed, displays on the display device 54 that the continuous shooting operation is possible. To start.

In this state, if the A3 size printing paper 43 is set on the paper feed table 44 or is set again, the size is detected by the copy object size detecting means 47 and the information is displayed on the display device 54. It is displayed and it is determined whether the plate making start is ON (step 100), and YES
In the case of (1), it is determined whether or not the document sensor is ON (step 101). In the case of YES as well, the document feed roller pair 14 is rotated by the drive of the writing motor 18 to start document feeding (step 102). .

Subsequently, it is determined whether or not the document IN sensor is ON (step 103). If YES, it is determined whether or not L (see FIG. 1) documents have been sent (step 104). The stencil sheet 23 is conveyed by the drive of the platen roller 24, and the stencil sheet feeding is started (step 105).

At the same time, the image of the original 7 is optically read by the contact type image sensor 11 and converted into an electric signal and sent to the control means 60. The image information sent from the control means 60 to the stencil sheet 23 A corresponding molten perforation image is formed, and a so-called plate making process is performed (step 106).

Since the leading end of the stencil sheet 23 before the above-described stencil making is started is held in a state of being cut by the cutter 31 of the cutter unit 3 during the previous stencil making operation. , Waiting at this cutting position.

As described above, the plate making process is performed according to the image information of the original 7.
06, the size of the printing paper 43 set on the paper feed tray 44, that is, the paper size signal sent from the copy object size detecting means 47, is not terminated when the plate making reading and writing of the original 7 are completed. Then, it is determined whether or not the plate making amount data stored in the writing amount data storage means 62 has been sent (step 107). If YES, the plate making process is completed completely thereafter (step 108).

Next, it is determined whether or not the platen roller feed amount data has been sent (step 109). If YES, the stencil sheet feeding is stopped (step 110), and thereafter, it is determined whether or not the original has been discharged (step 109). Step 11
1) In the case of YES, the original feeding is stopped (step 112), whereby the primary plate making operation is ended.

In this embodiment, the set printing paper 43
Whatever the size is, the data is stored in the writing amount data storage means 62 as a plate making amount before a predetermined amount, for example, about 2 mm before the center line for equally dividing it, and write amount feed rate of the roller 24 a predetermined amount beyond the central line, for example up to about 7 millimeters as feed amount data of the platen roller 24
It is stored in the data storage means 62.

Therefore, the plate making process is started from the point A shown in FIG. 5C (the plate making start position is always constant), but the subsequent plate making operation is performed on the printing paper 43 inputted by the copy size detecting means 47. The plate making amount data and the platen roller feed amount data stored in the writing amount data storage means 62 are called in accordance with the size data of, and the control means 60 controls the plate making writing section drive circuit 64 based on these.

That is, regardless of whether the reading of the original 7 is completed or not, the plate making operation is performed up to the position B just before the center line shown in FIG. The transport roller 14 and the document discharge roller 15 are driven.

On the other hand, the rotation of the platen roller 24 continues beyond the point B and reaches the next plate making start point C beyond the center line.

Thereafter, the secondary plate making operation is performed. First, a message to the effect that the document 7 is set is displayed on the display device 54 of the operation panel 5 and it is determined whether the document sensor is ON (step 113). In this case, the document feed is started so that the document 7 abuts the document feed roller pair 14 within a predetermined time, for example, 17 seconds (step 114), and it is determined whether the document IN sensor is ON (step 11).
5) In the case of YES, it is determined whether the original has been fed by L (step 116), and in the case of YES also, stencil sheet feeding is started in the same manner as in step 105 of the primary plate making operation described above (step 116). 117).

Subsequent steps 119 to 123
Are performed in the same manner as steps 106 to 110 described above.

Thereafter, the stencil sheet 23 is fed by the stencil sheet feeding roller 2.
6 (Step 124), one end of which is fixed at the clamp 32 (Step 125), and then the stencil sheet 23 is wound around the outer peripheral surface of the drum 33 by rotating the drum 33 (Step 124). 1
26) After being wound by a predetermined amount, it is cut by the cutter 31 (step 127).

As a result, the stencil sheet 33 is completely wound around the outer peripheral surface of the drum 33, the secondary stencil making operation is completed, and the printing operation is in a standby state.

On the other hand, if it is determined in step 113 that the document sensor is not ON, that is, if NO, it is determined whether 17 seconds have elapsed. If it is determined that 17 seconds have elapsed, the process proceeds to step 124. . Thereafter, the processing from step 124 to step 127 is performed in the same manner as described above, and the printing operation starts.

Next, the printing operation will be described. When the number of prints is input using the ten keys 52, the data is displayed on the display device 54. When the start key 50 is pressed in this state, the printing paper 43 is conveyed one by one to the timing roller 42 by the pickup roll 46, and after a temporary standby, the timing roller 42 is driven at a predetermined timing when the drum 33 rotates. It is sent to the transport path 41.

The printing paper 43 sent to the transport path 41
The ink is transferred by pressing the outer peripheral surface of the drum 33 by the press roller 35 and passed through the perforated image formed on the stencil sheet 23 to perform printing.

The printing paper 43 on which the printing has been performed is
5, the sheet is removed from the outer peripheral surface of the drum 33,
It is discharged to 9.

As described above, A3 size printing paper 4
The plurality of printed images of the B5 size original 7 printed on
As shown in FIG. 5D, the printing paper 43 of the A3 size does not straddle the center line of the equal division.
As shown in (1), printing is carried out in a well-balanced manner in a state of being equally allocated in each of the two divided areas. Further, in the continuous shooting control according to the present embodiment, the stencil making area is determined according to the paper size. Therefore, even if the size of the document is twice as large as the printing paper size, the stencil printing is not performed beyond the printing paper size. In addition, the press roller is not stained by printing.

Although the present embodiment has been described with respect to continuous shooting of two screens, the present invention is not limited to this, and writing of images on two or more screens can be similarly performed. In such a case, data indicating three or four surfaces may be input from the operation panel, and the plate making amount data and the platen roller feed amount data may be accessed accordingly.

[0055]

[0056]

As described above, according to the present invention,
When the multi-sided writing setting unit is set to perform the multi-sided original writing, the control unit writes the writing data to be image-formed in a plurality of equally divided areas corresponding to the detected size of the original to be copied. A plurality of images to be transferred are read from the data storage means, and the writing of the original image signal is controlled in the original writing section based on these data. Irrespective of the size, it can be accommodated in a plurality of equally divided areas of the copy to be used in a state of being uniformly allocated.

Therefore, it is possible to perform a multi-sided writing corresponding to a plurality of originals in a well-balanced manner, so that even when the used copy is divided into a plurality of equal parts and used, a plurality of copies having the same size can be obtained. While being able to
It is also possible to perform double-folding on the copy object to perform bag binding.

In the continuous shooting control according to the present invention, the writing area is determined according to the paper size. Therefore, even if the size of the original is twice as large as the size of the copy, the size of the copy exceeds the size of the copy. It also has the effect of not being transferred.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of a stencil printing machine according to the present invention.

FIG. 2 is a front view showing an operation panel of the stencil printing machine shown in FIG. 1;

FIG. 3 is a control block diagram of the stencil printing machine shown in FIG. 1;

FIG. 4 is a flowchart showing the operation of the stencil printing machine shown in FIG. 1;

FIG. 5 is an explanatory diagram of a continuous photographing function of the stencil printing machine shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 document reading unit 2 document writing unit 7 document 47 copy object size detection unit 51 continuous shooting key 60 control unit 61 storage unit 62 writing amount data storage unit

────────────────────────────────────────────────── ─── Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B41C 1/00-1/18 B41L 13/04 H04N 1/38-1/393

Claims (3)

(57) [Claims] (1)The original image read by the plate making reading unit
Plate making book consisting of thermal head and platen roller
Make a stencil on the stencil paper at
A stencil type stencil printing machine that wraps and prints on a drum
hand, Stencil making of multiple originals in the direction of conveyance of the stencil sheet
Continuous printing plate making setting means for setting Printing paper size detection means for detecting the size of printing paper
When, The stencil original is placed in a plurality of equally divided areas for each printing paper size.
Indicates the area where the perforated image is to be formed in the papermaking area transport direction.
Write amount data storage means for storing write amount data
When, When a multi-side plate making is set by the continuous plate making setting means
The paper size detected by the paper size detection means.
Referring to the writing amount data based on the size,
Prints document images of multiple documents read by the reading unit
Evenly allocated to each of multiple equally divided areas of paper
To make the stencil paper so that the stencil
Control means for controlling the embedding unit, Forming area of perforated image indicated by the writing amount data
The area is an area that is a predetermined amount before the line that divides the printing paper equally
And the area after the line has exceeded the predetermined amount
 A stencil type stencil printing machine characterized by the following. (2)The original image read by the plate making reading unit
Plate making book consisting of thermal head and platen roller
Make a stencil on the stencil paper at
A stencil type stencil printing machine that wraps and prints on a drum
hand, Stencil making of multiple originals in the direction of conveyance of the stencil sheet
Continuous printing plate making setting means for setting Printing paper size detection means for detecting the size of printing paper
When, The stencil original is placed in a plurality of equally divided areas for each printing paper size.
Indicates the area where the perforated image is to be formed in the papermaking area transport direction.
Write amount data storage means for storing write amount data
When, When a multi-side plate making is set by the continuous plate making setting means
Check the paper size Print paper detected by the
The plate making read is performed by referring to the write amount data based on the size.
The plate making of the manuscript image of the first manuscript read by Totori
The process ends at a position before a predetermined amount of the plurality of equally divided area lines.
And transport of the stencil sheet to the plurality of equally divided areas.
To a position beyond the predetermined amount on the line, and
According to the start of reading by the plate making reading unit, the two sheets
The plate making writing unit is controlled so as to make a plate of the original image.
Control means for controlling Forming area of perforated image indicated by the writing amount data
The area is an area that is a predetermined amount before the line that divides the printing paper equally
And the area after the line has exceeded the predetermined amount
 A stencil type stencil printing machine characterized by the following. 3. The writing amount data is stored in a plurality of equally divided areas of each printing paper size in the direction of the stencil area of the stencil sheet.
3. The stencil printing machine according to claim 1, wherein the stencil printing machine comprises plate making amount data indicating an area where a perforated image is to be formed and platen feed amount data at the time of plate making.