JP2002307797A - Stencil printing machine and stencil printing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stencil printing machine which restrains enlargement of equipment and makes a plate cylinder movable by a simple constitution. SOLUTION: The plate cylinder 52 is disposed to be movable axially in relation to the main body of the equipment. A plate cylinder driving means moves the plate cylinder 52 axially within the area of movement between a first end and a second end. Plate feeding means 42 and 102 set a stencil 2 subjected to plate making to the plate cylinder 52 when the cylinder 52 is located at the first end. A control means makes the plate cylinder driving means move the plate cylinder 54 fitted with the stencil 2 from the first end to the second end side and regulates the relative positions of the plate cylinder 52 and paper, according to the position of the plate cylinder 52 after the movement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a stencil printing machine and a stencil printing method.

[0002]

2. Description of the Related Art Conventionally, in a rotary stencil printing machine, a master clamp 4 is provided on a plate cylinder 1 as shown in FIG.

The master clamp 4 is configured to rotate between an open position shown in FIG. 1 and a closed position in which the master clamp 4 is tilted toward the clamp table 5 and holds the base paper. Master clamp 4
Is normally kept in the closed position by the torsion spring 4c.

[0004] The apparatus main body is provided with a master clamp opening / closing mechanism 6 for opening and closing the master clamp 4. That is, the arm member 7 of the master clamp opening / closing mechanism 6 is engaged with the engagement pin 4 b projecting from a lever provided at one end of the master clamp 4, and the master clamp 4 is opened and closed by the rotation of the arm member 7.

[0005]

By the way, if the relative position between the sheet and the plate cylinder can be changed, for example, when a binding margin is provided on the sheet, or when it is desired to shift the printing position while looking at the test print, The position of printing on paper can be adjusted, which is convenient. For this purpose, a configuration in which the transport position of the sheet is movable and a configuration in which the position of the plate cylinder is movable are conceivable.

In the former configuration, for example, in a stencil printing machine on which paper of various sizes is mounted, the range in which the paper transport path can be moved is widened, and the configuration becomes complicated. On the other hand, in the latter configuration, only the plate cylinder needs to be movable, and the configuration is simplified.

However, in the latter configuration, if the master clamp of the plate cylinder can be opened and closed at an arbitrary position within the movable range of the plate cylinder, the distance between the master clamp and the master clamp opening / closing mechanism becomes long. This complicates the configuration for releasably connecting the two. For example, it is necessary to lengthen the master clamp of the plate cylinder so that it can be engaged with the arm member of the master clamp opening / closing mechanism at any position. Further, if the plate cylinder is movable, the apparatus main body becomes larger by the movable range. Even in such a case, it is preferable to suppress the enlargement of the apparatus main body as much as possible.

[0008] Therefore, a technical problem to be solved by the present invention is to provide a stencil printing machine in which the size of the apparatus is suppressed and the plate cylinder is movable with a simple configuration.

[0009]

SUMMARY OF THE INVENTION The present invention provides a stencil printing machine having the following configuration to solve the above technical problems.

The stencil printing machine includes a plate cylinder, plate cylinder driving means,
It has a plate feeding means and a position control means. The plate cylinder is arranged movably in the axial direction with respect to the apparatus main body. The plate cylinder driving means moves the plate cylinder in the axial direction within a movement region between the first end and the second end. When the plate cylinder is at the first end, the plate feeding means mounts the stencil sheet made on the plate cylinder. The control means moves the plate cylinder on which the base paper is mounted by the plate supply means from the first end to the second end by operating the plate cylinder driving means, and The relative position between the plate cylinder and the paper is adjusted according to the position of the cylinder.

In the above configuration, the position of printing on paper can be adjusted by appropriately setting the position of the plate cylinder after moving from the first end. In this case, the plate cylinder should at least first move from the first end to the second end (or may be closer to the first end than the second end), and move stepwise to the second end. However, even if it moves to the first end side on the way, or finally, the first
You may have returned to the end.

According to the above arrangement, for example, when the base paper is mounted on the plate cylinder, the plate cylinder at the first end and the plate feeding means come close to each other, and the connection mechanism between the two is brought into the connected state, while the printing is performed. Occasionally, the plate cylinder may be separated from the plate feeding means so that the connection mechanism between the two is released. By utilizing the approach and detachment of the plate cylinder in this way, the configuration for connection / disconnection with the plate feeding means can be simplified.

For example, in the conventional apparatus shown in FIG. 1, in consideration of safety, the clamp lever 7 retreats to the center side of the plate cylinder 1 with a margin during printing (for example, rotates about 180 degrees from the position shown in the drawing). It is configured so as not to interfere with the engaging pin 4b on the plate cylinder 1. On the other hand, according to the above configuration of the present invention, the plate cylinder 1 moves in the axial direction and is located at a position distant from the clamp lever 7 at the time of printing. Is simplified.

Further, the plate cylinder moves from the first end to the second end, and the driving is not concentrated on a specific position at the time of mounting the base paper and at the time of printing.

Further, the plate feeding means can be arranged close to the first end side, so that the arrangement space on the second end side can be prevented from becoming large.

Therefore, it is possible to suppress an increase in the size of the apparatus and to make the plate cylinder movable with a simple configuration.

Preferably, the apparatus further comprises a position detecting means for detecting the position of the plate cylinder during printing, and a position storing means for storing the position detected by the position detecting means. The position control means moves the plate cylinder on which the stencil paper is mounted by the plate supply means from the first end to the position stored in the position storage means by operating the plate cylinder driving means. .

According to the above configuration, the position of the plate cylinder at the time of printing is stored, and the plate cylinder can be returned to the same position after exchanging the base paper. Thus, when the relative positional relationship between the paper and the print is the same even when the base paper is changed, the work of adjusting the position of the plate cylinder every time the base paper is changed can be omitted, which is convenient.

Preferably, the position control means adjusts the position of the plate cylinder on both sides of the first end and the second end with reference to a predetermined position on the first end from the second end. Thus, the relative position between the plate cylinder and the paper is adjusted.

According to the above arrangement, the printing position can be adjusted to both sides based on the printing position on the sheet when the plate cylinder is at the predetermined position.

Preferably, the range in which the printing position of the plate cylinder at the time of printing can be adjusted is equal on both sides with reference to a predetermined position, so that the printing position can be adjusted equally on both sides of the sheet. In this case, printing can be performed in the entire region of the plate cylinder moving area, and if the center position where the distance to the first end is equal to the distance to the second end is set as a reference (predetermined position), the base paper is mounted on the plate cylinder. Thus, it is possible to eliminate a gap between the first end and the range in which the position of the plate cylinder at the time of printing can be adjusted, to reduce the moving area of the plate cylinder as much as possible, and to reduce the size of the apparatus.

Preferably, there is provided a plate cylinder return control means for moving the plate cylinder to the first end after printing is completed.

According to the above configuration, after printing, the plate cylinder is always returned to the first end, so that the time for mounting the base paper on the plate cylinder for the next printing can be reduced.

The present invention also provides the following stencil printing method.

The stencil printing method includes a first step of mounting a stencil sheet on a plate cylinder at a predetermined position, and moving the plate cylinder on which the stencil sheet is mounted from the predetermined position with respect to the apparatus body in the axial direction. And printing on paper by moving to a second position. In the second step, the plate cylinder on which the base paper is mounted is always moved in one direction from the predetermined position.

In the above configuration, the printing position on the paper can be adjusted by the position of the plate cylinder after moving in one direction from the predetermined position.

According to the above arrangement, for example, when the base paper is mounted on the plate cylinder, the plate feeding means for mounting the base paper on the plate cylinder comes close to the plate cylinder so that the connection mechanism between the two is in the connected state. On the other hand, at the time of printing, the plate cylinder is separated from the plate feeding means, and the connection mechanism between the two can be released. By utilizing the approach and detachment of the plate cylinder in this way, the configuration for connection / disconnection with the plate feeding means can be simplified. Further, the plate feeding means can be arranged close to the first end side, so that the arrangement space on the second end side can be prevented from becoming large.

Therefore, it is possible to suppress an increase in the size of the apparatus and to make the plate cylinder movable with a simple configuration.

Preferably, the method further comprises a position storing step of storing the position of the plate cylinder at the time of printing. In the second step, the plate cylinder on which the base paper is mounted is moved from the predetermined position to the position stored in the position storage step.

According to the above configuration, the position of the plate cylinder at the time of printing is stored, and after replacing the base paper, the plate cylinder can be returned to the same position. Thus, when the relative positional relationship between the paper and the print is the same even when the base paper is changed, the work of adjusting the position of the plate cylinder every time the base paper is changed can be omitted, which is convenient.

Preferably, in the second step,
The plate cylinder on which the base paper is mounted is moved to the predetermined position side or the opposite side around a reference position moved in one direction from the predetermined position.

According to the above method, the printing position can be adjusted to both sides based on the printing position on the sheet when the plate cylinder is at the reference position.

Preferably, the method further comprises a third step of moving the plate cylinder to the predetermined position after printing is completed.

According to the above method, after printing, the plate cylinder is always returned to the predetermined position, so that the time for mounting the base paper on the plate cylinder for the next printing can be reduced.

[0035]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a stencil printing machine according to an embodiment of the present invention will be described with reference to FIGS.

FIG. 2 is an overall perspective view of the stencil printing machine 10. A document table 12a on which a document to be made is set is arranged on the upper part of the apparatus main body 12, and an operation button 12a and a display unit 12c are arranged on the operation side in front of the figure. The front of the main body 12 has a center 12k on both sides 12k.
It protrudes forward from s, 12t.

As shown in the configuration diagram of FIG.
0 is a paper feed unit 20 that supplies paper one sheet at a time.
And a printing press main body 40 for printing on the supplied paper, and a paper receiving unit 60 for collecting printed paper in a stacked state.

The paper supply section 20 has first and second two paper supply tables 22 and 24 provided below the apparatus main body 12 and a manual paper supply table 26 provided on one side of the apparatus main body 12. . The first and second paper feed tables 22 and 24 are always housed in the apparatus main body 12 and are configured as a bottom plate of a paper cassette (not shown) that can be pulled out from the front side of the apparatus main body 12 when replenishing paper. The manual paper feed tray 26 is used, as required, in a state of being exposed to the outside from the side surface of the apparatus main body 12, and is normally stored in a folded state on one side of the apparatus main body 12. First and second paper feed tables 22 and 2
4, a large number of sheets 23, 25 (for example, 1000 sheets) can be placed, while a small number of sheets 2
7 (for example, several to several tens) can be placed.

The paper supply unit 20 includes a paper supply ring 32a,
32b, 32c, and judgment plates 33a, 33b, 33c
, Transport rollers 34a to 34f, paper feed sensor 36a,
36b, 36c, monitoring sensors 37a, 37b, and a timing sensor 38.

The paper feed rings 32a, 32b and 32c are arranged at the ends of the paper feed tables 22, 24 and 26, respectively.
The sheets 23, 25, and 27 placed on the sheets 2, 24, and 26 are in contact with the ends of the top sheets. The separation plates 33a, 33b, and 33c are provided with the respective feed rings 32a, 3
2b and 32c, respectively, and the paper feed rings 32a, 32b and 32c rotate to rotate the paper feed tables 22 and 2c.
When the sheets 23, 25, and 27 are fed from the sheets 4, 26, if the sheets overlap, the passage of the lower sheet is prevented by friction. Thereby, the sheet feeder 2
Sheets 23, 25, 27 are sent out one by one from 2, 24, 26. The rotation is selectively transmitted to the paper feed rings 32a, 32b, and 32c, and the selected paper feed tables 22, 2 are selected.
Sheets 23, 25 and 27 are sent out only from sheets 4 and 26. FIG. 3 shows a case where only the sheet feeding ring 32b rotates and the sheets 25a and 25b are sent out from the second sheet feeding table 24. Paper feed sensors 36a, 36b,
36c is provided adjacent to the paper feed rings 32a, 32b, and 32c, and utilizes the output signals thereof to form the papers 23, 2
5, 27 are sent out at predetermined intervals.

The paper fed one by one by the paper feed rings 32a, 32b and 32c is fed to the rotating transport roller 3
4a to 34f, and is fed to the timing roller 35. The monitoring sensors 37a and 37b are provided in the paper transport path, and are used to monitor the transport status of the paper. The timing roller 35 is provided for aligning the leading edge of the sheet and printing at a predetermined position on the sheet. The timing roller 35 rotates in conjunction with the operation of the printing press main body 40, and rotates between the plate cylinder 52 and the press roller 54. Send. The timing sensor 38
It is used to stop the paper at the standby position 39 before the timing roller 35.

The printing press main body 40 has a plate feeding section 42, a plate discharging section 44, a printing section 50, and a transport section 46.

The plate feeding section 42 reads a document set on a document table 12a (see FIG. 1) on the upper part of the apparatus main body 12, and
Based on the image, if necessary, the stencil sheet (hereinafter referred to as stencil sheet) is engraved, if necessary, and the stencil sheet is mounted on the plate cylinder 52. The plate discharging section 44 removes the base paper attached to the plate cylinder 52.

The printing unit 50 includes a plate cylinder 52 on which the base paper is mounted on the outer peripheral surface thereof, a press roller 54 disposed below and under the plate cylinder 52 so as to be able to contact and separate, and an ink disposed inside the plate cylinder 52. It has a roller 56 and a squeegee roller 58, and an ink supply device (not shown) that supplies an appropriate amount of ink 59 from above between the ink roller 56 and the squeegee roller 58. When the sheet sent from the sheet feeding unit 20 passes between the plate cylinder 52 and the press roller 54, the sheet is pressed against the plate cylinder 52 by the ascending press roller 54, whereby the plate cylinder 52 and the base paper are conveyed. The transmitted ink adheres to the paper and is printed. The transport unit 46 is a belt conveyor that supports and transports the unprinted lower surface of the printed paper, and the printed paper is discharged from the paper discharge unit 49 to the paper receiving unit 60.

The paper receiving unit 60 includes a paper receiving table 62 extending substantially below the paper discharging unit 49 in a paper discharging direction 92 and a paper receiving table 6.
2 has a stop guide plate 64 and a pair of lateral guide plates 66 protruding from the upper surface of the sheet 2.
Thus, the three sides are sequentially stacked on the paper receiving table 62 in a state where the three sides are aligned. The paper feed table 62 is provided with a paper presence / absence sensor 78 for detecting whether or not paper is stacked thereon.

The plate cylinder 52 is configured as shown in the sectional view of the main part of FIG. 4, and is driven in the axial direction.
In the figure, the lower side is the operation side.

The plate cylinder 52 is a substantially cylindrical plate cylinder main body 52.
a and flange portions 2 fixed to both ends of the plate cylinder main body 52a
00, 210 and the frame 10 in the apparatus body 12.
6 (only one is shown).

One of the flange portions 200 is driven to rotate by the drive shaft 110 without any restriction on the axial position. The drive shaft 110 is rotatably supported by the frame 104 via a bearing 120. Drive shaft 1
10 is driven by a main motor 150 (see FIG. 5), and its rotation is controlled by a main motor encoder 152 (see FIG. 5).
). The flange portion 200 includes a flange portion 11 fixed to the drive shaft 110.
A drive transmission member 114 protruding in the axial direction from 2 is engaged movably in the axial direction.

The other flange portion 210 is relatively rotatable via a bearing 212 provided on the inner peripheral surface thereof.
It engages with the outer periphery of the moving member 128 and rotates with respect to the moving member 128, but moves integrally with the moving member 128 in the axial direction.

The moving member 128 is formed with an inner thread and is screwed with a screw rod 126 having an outer thread. The screw rod 126 is connected to the left / right fine motor 12 via a worm gear 123 and gears 124 and 125.
0 (see FIG. 5). Moving member 128
Is prevented from rotating by a mechanism (not shown). When the screw rod 126 rotates, the moving member 128
And the flange 210 engaged with the screw rod 12
6 so that the entire plate cylinder 52 moves in the axial direction.

In order to detect the position of the plate cylinder 52, a light shielding plate 129 is provided on the moving member 128, and a drum reference which is a photo interrupter supported by a support member (not shown) is provided at a position where the light shielding plate 129 interferes. A position sensor 214 is provided. Further, an output shaft 121 of the left and right fine movement motor 120 (see FIG. 5) is provided with a left and right fine movement motor encoder 122. The plate cylinder 52 is controlled so as to reciprocate within a distance X between the position indicated by the solid line and the position indicated by the chain line in the direction indicated by the arrow 94.

Preferably, the plate cylinder 52 is capable of printing at any position within the range of the distance X, and the center position (distance X) of the position of the plate cylinder 52 between the position indicated by the solid line and the position indicated by the chain line.
(Middle point), the printing position on the paper can be adjusted equally on both sides.

The left and right fine movement motor 120 (see FIG. 5)
If a stepping motor is used, the encoder 122
Is unnecessary.

Ink roller 56 disposed in plate cylinder 52
And the squeegee roller 58 are connected to a pair of inner frames 230,
232.

The inner frame 232 opposite to the drive shaft 110
A plurality of bearing receiving shafts 234 are provided upright, and the outer peripheral surface of the bearing 236 provided at the tip of each bearing receiving shaft 234 is formed on the inner peripheral surface 211 of the flange portion 210 of the plate cylinder 52.
And is supported.

The inner frame 230 on the drive shaft 110 side is supported by the drive shaft 110 via a bearing (not shown).
Even if 10 rotates, the stationary state is maintained. The ink roller 56 has a rotation transmission gear (not shown)
The rotation of the drive shaft 110 is transmitted and driven to rotate.

As shown in the schematic diagram of FIG. 6, on the outer periphery of the plate cylinder 52, a master clamp 53 configured similarly to the conventional example of FIG. 1 is provided. On the side opposite to the operation side of the apparatus main body 12, that is, on the rear side 100, a master clamp opening / closing mechanism 102 configured in the same manner as the conventional example of FIG. ing. The master clamp opening / closing mechanism 102 includes a clamp motor 160
(See FIG. 5). Further, along the plate cylinder 52, a plate supply section 42 and a plate discharge section 44 are arranged.

The plate cylinder 52 includes a frame 104 and a drive shaft 11.
0, a gear 125, and the like, and is configured to be removable from the apparatus main body to the operation side (the lower side in FIG. 4).

In FIG. 6A, the plate cylinder 52 is in the retracted position closest to the master clamp opening / closing mechanism 102. At this time, the master clamp opening / closing mechanism 102 can engage with the engaging pin 53a of the master clamp 53 to open and close the master clamp 53.

As shown by an arrow 96, the plate cylinder 52 moves only in one direction (operation side) from the retracted position, separates from the master clamp opening / closing mechanism 102, and engages the master clamp opening / closing mechanism 102 with the master clamp 53. The engagement with the pin 53a is released.

FIG. 5 is a block diagram of a control system of the stencil printing machine 10. CPU for controlling the stencil printing machine 10
(Central processing unit) 180 includes an operation panel 12b, a display unit 12c, and a ROM 182 for storing a basic program.
RAM 184 for temporarily storing data, and EEPROM 186 for storing control programs, parameters, and the like.
, A main motor 150, a clamp motor 160,
Left and right fine movement motor 120 and main motor encoder 1
52, a left / right fine motor encoder 122, a drum reference position sensor 214, and a plate cylinder 52 during plate feeding and discharging.
Angle detection sensor 1 for detecting the rotation angle of
62 and 164 are connected.

The position of the plate cylinder 52 is determined by the CPU 180.
It is controlled as follows.

In the retracted position shown in FIG.
Is replaced. If the plate cylinder 52 is not at the retracted position, the CPU 180 rotates the left / right fine movement motor 120 to move the plate cylinder to the retracted position. The position of the plate cylinder 52 is detected based on outputs from the left and right fine movement motor encoder 122 and the drum reference position detection sensor 214.

When a used base paper is mounted on the plate cylinder 52, the paper discharge unit 44 is
In cooperation with 02, control is performed to remove the base paper from the plate cylinder 52. If you are loading new base paper,
2 cooperates with the master clamp opening / closing mechanism 102,
Control is performed so that the base paper is mounted on the plate cylinder 52. At this time,
The CPU 180 controls the clamp angle detection sensor 162 or 1
The plate cylinder 52 is rotated while monitoring the output of the main motor encoder 152 and the output of the main motor encoder 152, and the sheet feeding unit 42 or the sheet discharging unit 44 and the clamp opening / closing mechanism 102 are controlled to operate in cooperation.

When printing, first, as shown by an arrow 96, the plate cylinder 52 is moved in one direction away from the master clamp opening / closing mechanism 102. At this time, the operation differs between the normal mode and the keep mode as follows.

In the normal mode, first, the plate cylinder 52 is
In (b), it is moved from the retracted position shown by the dotted line by the reference distance Y, and is moved to the printing reference position shown by the solid line. Next, based on the operation from the operation panel 12b, the plate cylinder 52 is moved to both sides in the axial direction about the printing reference position as shown by arrows 98a and 98b. This makes it possible to adjust the printing position on the sheet on both sides in a direction perpendicular to the sheet conveying direction.

In the keep mode, the plate cylinder 52 before printing is
Is detected and stored in the RAM 184. Then, after moving the plate cylinder 52 to the retracted position and mounting the next stencil on the plate cylinder 52, the position of the plate cylinder 52 at the time of printing before that is read from the RAM 184, and the plate cylinder 52 is moved to that position. Let it. In the keep mode, the work of adjusting the position of the plate cylinder 52 every time the base paper is changed can be omitted, for example, when the relative positional relationship between the paper and the printing is the same even when the base paper is changed, which is convenient.

As described above, the stencil printing machine 10 includes:
Since only the plate cylinder 52 is moved in order to adjust the position of printing on the sheet, the movable range is small and the configuration is simplified as compared with the case where the entire sheet conveying path is moved. In addition, since only the plate cylinder 52 always moves in one direction (operation side) from the retracted position, the plate feeding section 42, the plate discharge section 44, and the master clamp opening / closing mechanism 102 are arranged close to the operation side. As shown in FIG. 2, only the center 12k corresponding to the space of the plate cylinder 52 is configured to protrude, so that an increase in the size of the apparatus can be suppressed.

It should be noted that the present invention is not limited to the above embodiment, but can be implemented in various other modes.

For example, a mechanism for opening and closing the master clamp of the plate cylinder is provided in each of the plate feeding section and the paper discharge section, and the master clamp opening and closing mechanism disposed opposite to the shaft end of the plate cylinder may be eliminated. Good.

After the printing is completed, control may be made so that the plate cylinder 52 automatically moves to the retracted position shown in FIG. 6A. In this case, the base paper can be replaced immediately without moving the plate cylinder 52 during plate making, so that the time can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a plate cylinder of a conventional stencil printing machine.

FIG. 2 is an overall perspective view of a stencil printing machine according to an embodiment of the present invention.

FIG. 3 is a configuration diagram of the stencil printing machine of FIG. 2;

FIG. 4 is a sectional view of a plate cylinder of the stencil printing machine of FIG. 2;

FIG. 5 is a block diagram of a control system of the stencil printing machine of FIG. 2;

FIG. 6 is a schematic view of a plate cylinder of the stencil printing machine of FIG. 2;

[Explanation of symbols]

 Reference Signs List 10 stencil printing machine 12 apparatus main body 42 plate feeding section (plate feeding means) 52 plate cylinder 102 master clamp opening / closing mechanism (plate feeding means) 120 left / right fine movement motor (plate cylinder driving means) 121 output shaft (plate cylinder driving means) 122 encoder (Position detecting means) 123 Worm gear (plate cylinder driving means) 124, 125 Gear (plate cylinder driving means) 126 Screw rod (plate cylinder driving means) 128 Moving member (plate cylinder driving means) 180 CPU (position control means) 184 RAM (Position storage means) 214 Drum reference position sensor (Position detection means)

Claims (8)

[Claims] 1. A plate cylinder (52) movably arranged in an axial direction with respect to an apparatus main body (12), and said plate cylinder (52) is moved between a first end and a second end in the axial direction. Cylinder driving means (120, 12)
1, 122-126, 128), plate-feeding means for mounting the plate-making base paper (2) on the plate cylinder (52) when the plate cylinder (52) is at the first end, The plate cylinder (52) on which the base paper (2) is mounted by means is connected to the plate cylinder driving means (120, 121, 1).
22 to 126, 128) to move from the first end to the second end side, and the relative position between the plate cylinder (52) and the paper depending on the position of the plate cylinder (52) after the movement. A stencil printing machine comprising a position control means (180) for adjusting a position. 2. A position control means (121, 214) for detecting the position of the plate cylinder (52) during printing, and a position storage means for storing the position detected by the position control means (121, 214). (184), wherein the position control means (180) converts the plate cylinder (52) on which the base paper (2) is mounted by the plate feeding means to the plate cylinder driving means (120, 121, 122 to 120). 126,12
8) to operate the position storage means (1) from the first end.
The stencil printing machine according to claim 1, wherein the stencil printing machine is moved to the position stored in (84). 3. The plate cylinder (52) is provided on both sides of the first end and the second end with reference to a predetermined position on the first end from the second end. 3. A stencil printing machine according to claim 1, wherein the relative position between the plate cylinder and the sheet is adjusted by adjusting the position of the stencil printing machine. 4. A stencil printing machine according to claim 1, further comprising a plate cylinder return control means for moving said plate cylinder to said first end after printing is completed. 5. A first step of mounting a stencil sheet (2) at a predetermined position on a plate cylinder (52), and mounting the plate cylinder (52) on which the stencil sheet (2) is mounted to an apparatus body ( 12) a second step of performing printing on paper by moving the sheet from the predetermined position in the axial direction with respect to the predetermined position, wherein in the second step, the base paper (2) is mounted. A stencil printing method, wherein the printing drum (52) is always moved in one direction from the predetermined position. 6. The printing method according to claim 1, further comprising a position storing step of storing a position of the plate cylinder at the time of printing. In the second step, the plate cylinder on which the base paper is mounted is removed. 6. The stencil printing method according to claim 5, wherein the stencil printing is moved from a predetermined position to the position stored in the position storing step. 7. In the second step, the plate cylinder (52) on which the base paper (2) is mounted is moved to the predetermined position side or a predetermined position thereof around a reference position moved in one direction from the predetermined position. The stencil printing method according to claim 5, wherein the stencil printing plate is moved to an opposite side. 8. The stencil printing method according to claim 4, further comprising a third step of moving the plate cylinder to the predetermined position after printing is completed.