JPH041079A - Stencil printing device - Google Patents

Abstract

PURPOSE:To reduce the substantial installation area by providing a paper feed section and paper delivery section vertically to the device main body. CONSTITUTION:On this side of a plate cylinder 3 when looking from a side surface C on the operation side, paper feed cassettes 7a, 7b in which two different size printing papers 6 are contained, are installed in upper and lower two stages. These are constituted to be integrally movable in the vertical direction, and at the same time, the paper feed cassette 7a is constituted to be movable in the horizontal direction. When papers are fed from the paper feed cassette 7b on the lower stage, the paper feed cassette 7b is closer to a paper feeding roller 8, and the downstream side of a bottom plate 9 of the paper feed cassette 7b is constituted to be liftable. Also, under the downstream side end of the bottom plate 9, since a compression coil spring 10 to lift the downstream side is equipped, accompanying with the decrease of the quantity of the printing paper 6, the downstream side end of the paper feed cassette 7b is gradually lifted. The paper feed cassette 7a on the upper stage has the same structure also. By this method, a paper feed section or paper delivery section does not protrude to the right and left of the device main body, and the installation area becomes extremely small. The quietness and workability are also improved, and the reduction of a dead space generated by the installation of this device becomes possible.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a so-called front-operated stencil printing apparatus in which printing paper can be fed and taken out from the side where an operator is located.

(b) Conventional technology It is not necessary to give specific examples in the conventional stencil printing device.
When viewed from the operator's side, the paper feed tray and paper feed cassette are attached to the right side of the device body, and the paper output tray is attached to the opposite left side, or the left and right sides are reversed.

Further, the paper feed cassette and the paper ejection table are configured to be inserted into and removed from the main body of the apparatus in the left-right direction.

Therefore, when using a stencil printing device, the paper feed cassette and paper ejection tray protrude from the left and right sides of the main body of the device, so a space is required that takes into consideration the protruding dimensions and the work of inserting and removing the paper feed cassette and paper ejection tray. The installation space for the device required an area approximately three times the width in the left-right direction of the device itself.

(c) Problems to be Solved by the Invention As mentioned above, in the conventional technology, when using a stencil printing device, an installation area much larger than the vertical projected area of the device itself was required, but this Nowadays, the cost of renting a place is soaring, and the dead space created by installing a stencil printing machine is extremely uneconomical.

Further, in conventional devices, the paper feed section and the paper ejection section are exposed, and noise from the exposed sections has been a problem.

Furthermore, since the paper feeding section and the paper discharging section are mounted on opposing sides, the paper feeding and discharging operation inevitably requires standing work, resulting in poor workability.

The present invention has been made in view of the problems of the conventional technology, and by providing the paper feeding means and the paper discharging means above and below, it is possible to substantially reduce the installation area, and also solve various problems and problems. The aim is to realize a printing device that can solve these problems.

(d) Means for solving the problem The first major invention is to press the printing paper against the plate cylinder, on which printing ink is stored inside the device body and the stencil paper after plate making is wrapped around the outer periphery. In a stencil printing device that prints a calligraphy image on the printing paper, there is a paper feeding means in which the printing papers are stacked and stored, and the bottom side of the printing paper fed by the paper feeding means is referred to as the above-mentioned. A paper pressure contact means that presses against the plate cylinder, a paper reversing means that reverses the already printed printing paper, and a paper mounting means that places the reversed printing paper are arranged in sequence, and the rotation axis of the plate cylinder is aligned with the main body of the apparatus. The sheet loading means extends in a direction parallel to the side surface on the operating side of the sheet, and is characterized in that the sheet loading means is located above the sheet feeding means.

The second major invention is a stencil printing device that prints a calligraphy image on printing paper by bringing printing paper into pressure contact with a printing cylinder around which printing ink is stored and stencil paper after stencil making is wound around the outer periphery. , a paper feeding means for loading and storing printing paper and feeding the printing paper sheet by sheet; a paper reversing means for reversing the front and back of the printing paper fed by the paper feeding means before printing; A paper pressing means that presses the lower side of the paper against the plate cylinder when paper is fed, and a paper mounting means that places the printed printing paper are arranged in sequence, and the axis of rotation of the plate cylinder is aligned with the main body of the apparatus. It is characterized in that it extends in a direction parallel to the side surface on the operation side, and the paper loading means is located above the paper feeding means.

(E) Effect In the first major invention, the printing paper fed by the paper feeding means is pressed against the bottom side or the plate cylinder when the paper is fed, so that the printing ink is transferred, and then the paper is reversed. It is turned over by means so that the printing side is the top surface,
The sheets are sequentially placed above the sheet feeding means.

In the second major invention, the printing paper fed by the paper feeding means is reversed by the paper reversing means, and the printing ink is transferred by pressing the lower side of the paper against the plate cylinder when the paper is fed. , are sequentially placed above the paper feeding means with the printing side facing upward.

(F) Embodiment Figures 1 to 5 show the first embodiment. Figure 1 is an internal configuration diagram, and Figure 2 is an internal view of the state in which paper is fed from a paper feed tray different from that in Figure 1. 3 is an internal configuration diagram with the paper feeding means pulled out toward the operation side, FIG. 4 is an internal configuration diagram with the plate making means and spare paper storage means pulled out integrally toward the operation side, and FIG. The figure is a perspective view of the installed state.

In these figures, reference numeral 1 denotes the main body of the device, inside of which the support shaft 2 is horizontal and located on the back side (left side in the figures) when viewed from the side C on the operation side (the right side in the figures). One end surface of a plate cylinder 3, which is formed to protrude in a direction parallel to the side surface C, and is made of a cylinder having a shape similar to a cylinder, is rotatably attached to the support shaft 2. Further, a driven gear is fixed to one end surface of the plate cylinder 3, and is connected via a timing belt or the like (not shown) to a drive motor 4 that rotates the driven gear in a counterclockwise direction. The drive motor 4 is connected to a control circuit 5 that controls its rotation speed and the like.

The plate cylinder 3 includes a cylindrical base made of metal or plastic having a net shape with numerous small holes perforated in the circumferential side wall, and a cylindrical base made of silk, cotton, or synthetic resin wrapped around the outer circumferential surface of the base. This is a well-known screen constructed of a cloth screen made of fiber or the like.

Two paper feed cassettes 7a and 7b containing two types of printing paper 6 of different sizes are stacked in upper and lower stages on the front side of the plate cylinder 3 when viewed from the side C on the operating side. There is. A4 size printing paper 6 is placed in the upper paper feed cassette 7a.
is stored, and B4 size printing paper 6 is stored in the lower sheet feeder (7b). These paper cassettes 7
a and 7b are configured to be integrally movable up and down in the vertical direction, and the upper paper feed cassette 7a is configured to be movable back and forth in the horizontal direction.

When feeding paper from the lower paper feed cassette 7b, as shown in FIG. The downstream side of the bottom plate 9 of 7b is configured to be lifted up. Further, a compression coil spring 10 is provided at the lower part of the downstream end of the bottom plate 9 for lifting the downstream side of the bottom plate 9 as well. Therefore, as the printing paper 6 decreases in weight, the downstream end of the bottom plate 9 gradually rises.

In addition, when feeding paper from the upper paper feed cassette 7a,
As shown in FIG. 2, the upper paper feed cassette 7b is approaching the paper feed roller 8. The upper paper feed cassette 7a also has the same structure as the lower paper feed cassette 7b.

Regarding the configuration of these paper feed force rollers) 7a and 7b, the applicant's utility model registration application (Utility Model Application No. 2-28810)
Familiar with specifications and drawings.

A lid 11 is attached to the front side of the paper feed cassettes 7a, 7b so as to be openable and closable, and by opening the lid 11,
As shown in FIG. 3, the distributed paper cassettes 7a and 7b can be integrally pulled out to the front side as a paper feeding unit P.

One sheet of unprinted printing paper 6 stacked in the paper feeding cassette gutter 7b is placed above the downstream end edge of the paper feeding force sensor) 7b along the feeding direction of the printing paper 6. Separate each
A paper feed roller 8 is provided for feeding the paper toward the printing section (upper right corner of the plate cylinder 3), and a paper feed roller 8 is provided on the downstream side (upper left corner) of the paper feed roller 8. A pair of register rollers 12 for once stopping the fed printing paper 6 and then feeding it again at the appropriate timing.
13 are pressed together.

On the downstream side of the register roller pair 12.13, the printing paper 6 fed by the register roller pair 12.13 is placed on the upper right side of the plate cylinder 3 in the printing area of the plate cylinder 3 (where the stencil paper is wound). pressure roller 14 for pressing the area)
is provided.

The pressure roller 14 is driven by the plate cylinder 3 and is pressed against only the printing area in synchronization with the rotation of the plate cylinder 3, that is, by the clamper 15 etc. provided in the non-printing area of the plate cylinder 3. It is provided so as to be able to move toward and away from the plate cylinder 3 so as not to come into contact with it.

Note that the pressure roller 14 moves the printing paper 6 onto the printing cylinder 3 so that the lower surface of the printing paper 6 is pressed against the printing cylinder 3 during feeding.
The support shaft 2 is provided above a horizontal plane that includes the rotation center (support shaft 2).

A reel 16 is rotatably mounted below the paper feed cassettes 7a and 7b, and a band-shaped stencil paper 17 is attached to the reel 16.
is wound into a roll. This stencil paper 17 is a well-known one in which a heat-shrinkable film and a porous thin film are laminated.

On the downstream side of the reel 16 along the moving direction of the stencil paper 17 (to the left in FIG. 1), there is a tension roller 1.
8 is rotatably provided, and further downstream of this tension roller 18, a direction parallel to the extending direction of the support shaft 2 of the plate cylinder 3 is provided for punching and forming a desired calligraphy image on the stencil paper 17. A thermal head 19 extending from below is provided, and a platen roller 20
is lightly pressed.

A cutter device 21 having a rotating circular blade for cutting the stencil paper 5 into a predetermined length dimension (for example, the longitudinal dimension of B4 size) is provided downstream of the thermal head 19. On the downstream side (upper left) of
A conveyance roller 22 and a pair of opposing stencil conveyors 23 and 24 are provided for conveying the stencil paper 17 to the mounting position (right side) of the plate cylinder 3. The base paper transport conveyors 23 and 24 are held and driven by a plurality of rollers.

On the downstream side (upper left) of the paper conveyor 23, 24, there is a clamping position of a clamper 15 which is swingably attached to the non-printing area of the plate cylinder 3 and holds the downstream edge of the stencil paper 17. A base paper supply roller 25 for conveying the base paper to the base paper transport conveyor 24 is lightly pressed onto a guide plate 26.

It should be noted that on the front side (right side in the figure) of the stencil paper 17 wound around the reel 16, a printed image is printed on the thermal printing paper 59 on a trial basis to check whether the printed content is formed as desired. A second reel 27, a second thermal head 28, and a second platen roller 29 are provided for checking whether or not there is a problem.

The second thermal head 28 is configured so that the same signal as that input to the thermal head 19 is input.

On the downstream side (right side) of the second thermal head 28, there is a discharge hole 6 for discharging the thermal printing paper 59 after thermal printing.
0 is established. Note that a cutter (not shown) for cutting the thermal printing paper 59 is provided at the inner upper edge of the discharge hole 60.

The components from the second thermal head 28 to the cutter device 21 on the rear side are integrally configured as a plate making unit (M), and are configured so that they can be pulled out to the front side when viewed from the operating side together with a spare paper mounting table 30, which will be described later. ing.

Diagonally above the pressure roller 14 on the downstream side, there is a separating claw (not shown) for separating the printed printing paper 6 from the plate cylinder 3, and a separation claw (not shown) for separating the printed printing paper 6 from the plate cylinder 3, and a separation claw (not shown) between the plate cylinder 3 and the printed printing paper 6. A paper discharge fan 31 is provided to forcefully feed air to facilitate separation of the printing paper 6 from the plate cylinder 3.

At the top of the plate cylinder 3, a vacuum conveyor 34 is provided which is suspended between a small diameter roller 33 and a large diameter roller 32 serving as a sheet reversing means. This vacium conveyor 34 has a large number of openings, and is configured to have a negative pressure inside.

Further, a large number of holes are formed on the circumferential side of the large-diameter roller 32, so that the inside is configured to have a negative pressure.

Therefore, when the vacium conveyor 34 and the like operate, negative pressure is created inside the vacium conveyor 34 and the large-diameter roller 32, and air is sucked through each opening.

A cover 35 is provided on the right side of the large-diameter roller 32 to close the opening in order to partially prevent air from being sucked.

On the right side of the large diameter roller 32, the paper feed cassette 7a,
A paper mounting table 36 on which the printed paper 6 is mounted is provided above 7b.

Note that the paper mounting table 36 is set at approximately the same height as the top surface of a typical office desk.

When the printed printing paper 6 is separated by a separation claw or the like, it is attracted by the vacuum conveyor 34 and conveyed upward, and is also reversed by the large diameter roller 32 so that the printed surface is separated. The paper mounting table 3 is placed in an upward position.
Furthermore, as mentioned above, the large diameter roller 32 is placed on the
On the right side of the inside, there is a cover 35 to prevent air suction.
is provided, the printing paper 6 is released from the suction force at this portion and is ejected.

A transparent lid 37 is attached to the upper part of the paper table 36 so as to be openable and closable so that the printing state can be visually checked. On the lower surface of the lid body 37, the printing paper 6 after printing is placed.
Regulation plate 3 for regulating the downstream end (front end) of
8 is attached so that it can move forward and backward. 39 is a sorter tape discharge port.

Below the plate-making unit M, there is a spare paper feed cellar) 7c in which, for example, A3 size printing paper 6 is stacked and stored.
A spare paper mounting table 30 is provided on which the paper is placed. Note that, since the paper feed cassette 7C is long in the paper feed direction, when printing is performed using the paper feed power cellar 7c, the lid 11 is left slightly open.

On the back side of the spare paper table 30 (left side in the figure) is a waste board storage box 40 in which the stencil paper 17 that is no longer needed after printing is stored.
is installed in a removable manner.

A lid 41 is attached to the front side of the spare paper table 30 so as to be openable and closable, and by opening the lid 41,
As shown in FIG. 4, the plate making unit M and the waste plate storage box 40
It becomes possible to pull it out to the front side as a whole.

Below the plate cylinder 3, there are a pair of plate discharge rollers 42, 43 and the above-mentioned waste plate storage box 40 for separating and storing the stencil paper 17 that is no longer needed after printing a predetermined number of sheets from the plate cylinder 3.
is provided. Of the plate discharge roller pair 42, 43, the movable roller 43 is attached to the free end of the swing lever 44, and the movable roller 43 peels off the downstream edge of the stencil paper 17 from the plate cylinder 3. When starting, it is pressed against the plate cylinder 3 (perforated base paper 17), and after the start of peeling, the fixed roller 42
It is configured to be pressed into contact with the

Shredders 45 and 46 are provided below the pair of discharge rollers 42 and 43 to shred the stencil paper 17 after it has been peeled off.

Therefore, after the peeling is started, the stencil paper 17 is pinched and sequentially discharged by the pair of discharge rollers 42, 43, shredded by the shredder 45, 46, and then placed in the waste board storage box 40.
will be stored in.

Above the opening of the waste board storage box 40, a waste board storage box 40 is provided.
A paper compression member 47 is mounted so as to be vertically movable for compressing the stencil paper 17 inside to increase storage efficiency. The paper compression member 47 is equipped with a sensor (not shown) that detects when the waste board storage box 40 is filled with the stencil paper 17.

A document reading device 48 is provided at the upper rear side of the apparatus main body l for reading a calligraphic image formed on the lower surface of the document and converting it into an electrical signal.

The document reading device 48 has a built-in contact type line sensor 49 that reads the image of the document.
On the upstream side (right side) of the document 9, a transmission type 7-oto interrupter 50, 51 is provided for detecting the downstream end of the document. Furthermore, a pair of document feeding rollers 52, 53 are arranged in pressure contact with each other further upstream of the seven-way interrupter 50, 51.

A document position correction roller 54 is provided upstream of the document feed roller pair 52 and 53.
A pair of document registration rollers 55 and 56 are provided further upstream of the document registration roller 4 . Note that the lid 37 at the top of the apparatus main body 1 also serves as a document supply table.

On the downstream side (left side) of the line sensor 49, a pair of document discharge rollers 57 and 58 is provided.

The original supplied from the lid 37 is first fed to the left by the original starting roller pair 55, 56 and the original feeding roller 54, and then by the original feeding roller pair 52, 53. Then, the downstream edge thereof is detected by the seventh automatic interrupter 50, 51, and when a predetermined period of time has elapsed, the line sensor 49 starts the document reading operation. The upstream edge of the document is connected to the photo interrupter 50.5.
After a predetermined period of time has elapsed after the detection at step 1, the document reading operation is controlled to end when the document has completely moved downstream from the top of the line sensor 49.

The document image signal from the document reading device 48 is configured to be output as it is or once stored in a memory and then amplified and output to the thermal head 19 or the second thermal head 28. At the same time as or after the image is read by the line sensor 49, the image is made into a stencil sheet 17 by the thermal head 19, or thermally printed onto a thermal printing paper 59 by the second thermal head 28.

In this embodiment, the plate making unit M is configured so that it can be pulled out to the operation side together with the spare paper mounting table 30.
It is also possible to configure so that only the plate making unit M can be separately pulled out to the operation side.

Note that FIG. 5 is a perspective view of an embodiment in which the document reading device 48 is not installed, but as is clear from this figure, there is no paper feeding section or paper ejection section protruding from the left and right sides of the main body of the device. It is possible to place office automation equipment and tables close to each other on the left and right sides of the device, and it is also possible to input document images by connecting to a word processor or computer online.

Next, a second embodiment of the present invention will be described with reference to FIGS. 6 and 7. FIG. 6 is an internal configuration diagram, and FIG. 7 is a plan view. The difference between the second embodiment and the first embodiment is that in the first embodiment, the printing paper is reversed after printing, whereas in the second embodiment, the printing paper is reversed before printing. This is the point. Note that in the second embodiment,
Parts that are substantially the same as those in the first embodiment are designated by the same reference numerals in the drawings, and explanations of the respective parts will be omitted, and only the differences will be explained.

In the second embodiment, a pair of base paper transport rollers 61 and 62 are arranged in pressure contact with each other on the downstream side of the cutter device @21, and a base paper feed roller 63 is provided on the downstream side of the pair of base paper transport rollers 61 and 62. It is provided. The base paper feeding roller 63
is located above the paper feed roller 8.

Note that a pair of base paper conveying rollers 61.
The parts up to 62 are constructed so as to be able to swing in an integrated manner in the vertical direction, and can be positioned downward during maintenance.

To the left of the base paper feed roller 63 and below the plate cylinder 3, there is a
A paper reversing roller 64 having a shape similar to that of the plate cylinder 3 is rotatably provided, and a base paper clamper 65 and a paper clamper 66 similar to the clamper 15 of the plate cylinder 3 are attached to the paper reversing roller 64 so as to be openable and closable. has been done. The base paper clamper 65 and the paper clamper 66 are for selectively winding and holding the fed stencil paper 17 after stencil making and the unprinted printing paper 6 around the paper reversing roller 64.

Note that it is preferable that the plate cylinder 3 and the paper reversing roller 64 have the same diameter, but if these diameters are not the same,
It is only necessary that the cranometer 5 of the plate cylinder 3 and the base paper clamper 65 and the paper clamper 66 approach each other in synchronization.

When the paper reversing roller 64 reversely transports the printing paper 6, the paper reversing roller 64 first stops with the paper clamper 66 positioned downward, and the paper clamper 66 moves the downstream end of the printing paper 6. After the edges are clamped, the printing paper 6 is slightly twisted and then rotation is started. Therefore,
It also functions as a registration means for the printing paper 6.

When the paper reversing roller 64 transports the stencil paper 17,
First, the paper reversing roller 64 temporarily stops with the paper clamper 65 positioned diagonally downward to the right, and a sensor (not shown) detects that the downstream edge of the stencil paper 17 has reached the nipping section. Accordingly, the paper clamper 65 is configured to clamp the stencil paper 17.

A roller is provided between the plate cylinder 3 and the paper reversing roller 64 for peeling off the stencil paper 17 or the printing paper 6 held by the paper reversing roller 64 from the paper reversing roller 64 and transferring it to the plate cylinder 3. Guide rollers 67, 68 and a transfer guide 75 are provided. The guide roller 6
7 is pressed to follow the paper reversing roller 64, and even after the paper clamper 66 is opened, it continues to transfer the stencil paper 17 toward the plate cylinder 3, and also continues to transfer the stencil paper 17 from the paper reversing roller 64. This prevents the surface from rising.

Note that at this stage, no printing ink is attached to the stencil paper 17 or the printing paper 6, so the guide roller 67.
There is no problem even if 68 comes into contact with it. The guide roller 68 is separated from the transfer guide 75 when the printing paper 6 is transferred.
It is configured to be pressed against the transfer guide 75 only when transferring the stencil paper 17, and is designed to ensure that even thin paper like the stencil paper 17 can be transferred reliably.

A plurality of recesses are formed at the upstream and downstream edges of the transfer guide 75. The free ends of the base paper clamper 65 and paper clamper 66 in the open state pass through the recess on the upstream edge (lower left), and the free ends of the plate cylinder 3 in the open state pass through the recess on the downstream edge (upper right). It is configured so that the free end of the clamper 15 can pass therethrough, so that the stencil paper 17 and the printing paper 6 can be transferred smoothly.

In this embodiment, the base paper clamper 65 and the paper clamper 66 are configured separately, but they may also be used to selectively clamp the stencil paper 17 and the printing paper 6 with one clamper. . In this case, even if the clamper is the same, its clamping position will be different when clamping the stencil paper 17 and when clamping the printing paper 6.

In the second embodiment, the pressure roller 14 is provided below a horizontal plane including the rotation center (support shaft 2) of the plate cylinder 3 so as to press the lower surface of the printing paper 6 against the plate cylinder 3 during paper feeding. ing.

Note that the paper loading table 69 on which the printing paper 6 is loaded is configured to be able to move up and down by a motor (not shown), and above the sheet loading table 69 there are plate-making means such as a thermal head 19 and a stencil plate. A base paper 17 is located.

In addition, the stencil paper 17 that has been peeled off from the plate cylinder 3 after a predetermined number of printings is placed in a shredder 45.4 at the innermost side of the main body 1 of the apparatus.
Discharge conveyors 70, 71 are provided for conveying the plates downward to 6.

Furthermore, on the upstream side of the document registration roller pair 55 and 56,
A document table 72 for supplying documents is removably installed at an angle. Note that the document whose calligraphy image has been read is placed on the paper mounting table 36.
The documents are sequentially placed on a document placing table 73 provided above.

Furthermore, the paper mounting table 36 and the transparent plastic lid 37 are configured to be able to swing open and close in the vertical direction, and when attaching and detaching the roll-shaped stencil paper 17, etc. Do this by opening 36 etc. 74 is an operation panel.

When the stencil paper 17 after making the plate is wound around the printing cylinder 3, the downstream edge of the stencil paper 17 fed by the paper feed roller 63 is held by the paper clamper 65. In the pinched state, the paper reversing roller 64 rotates clockwise,
The stencil paper 17 is sequentially wound around the paper reversing roller 64.

Then, when the paper clamper 65 reaches the front side of the guide rollers 67 and 68, the stencil paper 17 is released, and the downstream edge of the released stencil paper 17 is attached to the guide roller 67.
68 and the like, and is transferred to the plate cylinder 3 side and clamped by the clamper 15 of the plate cylinder 3. The subsequent operation is no different from the first embodiment.

On the other hand, when printing on the printing paper 6, the downstream edge of the printing paper 6 fed by the paper feeding roller 8 is held between the paper clamper 66 and the paper reversing roller 64 rotates clockwise, and the printing paper 6 is sequentially wound around the paper reversing roller 64. And paper clamper 66
When the printing paper 6 reaches the front side of the guide rollers 67 and 68, the printing paper 6 is released, and the downstream edge of the released printing paper 6 is further driven and guided by the guide rollers 67 and the like and transferred to the plate cylinder 3 side. The print cylinder 3 is placed under pressure by the pressure roller 14 and printed. Note that at this time, the guide rollers 68 are spaced apart. The subsequent operation is not substantially different from the first embodiment.

(g) Effects of the Invention In the first major invention, the printing paper fed by the paper feeding means is pressed against the bottom side or the plate cylinder when the paper is fed, so that the printing ink is transferred, and then The paper is reversed by the paper reversing means so that the printing side is on top.
The sheets are sequentially placed above the sheet feeding means.

In the second major invention, the printing paper fed by the paper feeding means is reversed by the paper reversing means, and the printing ink is transferred by pressing the lower side of the paper against the plate cylinder when the paper is fed. , are sequentially placed above the paper feeding means with the printing side facing upward.

Therefore, in any of the inventions, no paper feed section or paper ejection section protrudes from the left and right sides of the device body, and the installation area of the stencil printing device is extremely narrow (1/2
~l/4), the dead space caused by the installation of the stencil printing device is reduced.

Furthermore, since the paper feeding section and the paper discharging section, where noise from the main body of the apparatus is likely to be emitted, can be sealed with a lid, quietness is improved and it becomes possible to install the apparatus in a normal office.

Furthermore, complete front operation is possible, and printed matter is ejected to the top, so printing can be checked while sitting, which not only improves work efficiency but also has a great design effect.

Furthermore, other equipment such as a word processor or a personal computer can be placed on the left and right sides of the main body of the apparatus, and the operator can immediately operate the apparatus on the spot while operating the apparatus.

In particular, in the second major invention, since the paper is reversed before printing, that is, before printing ink is attached to the printing paper, the surface of the printing paper to be printed can be regulated by guides and rollers in this paper reversing step. , design freedom and reliability are improved.

[Brief explanation of the drawing]

1 to 5 show the first embodiment, in which FIG. 1 is an internal configuration diagram, FIG. 2 is an internal configuration diagram in a state where paper is fed from a paper feed tray different from that in FIG. 1, and FIG. The figure is an internal configuration diagram with the paper feeding means pulled out to the operation side, Figure 4 is an internal configuration diagram with the plate making means and spare paper storage means pulled out integrally to the operation side, and Figure 5 is the installed state. FIG. FIGS. 6 and 7 show a second embodiment, with FIG. 6 being an internal configuration diagram and FIG. 7 being a plan view. 1... Device main body, 2... Support shaft, 3... Plate cylinder, 4
... Drive motor, 5... Control circuit, 6... Print paper, 7a, 7b, 7c... Paper feed cassette, 8... Paper feed roller 9... Bottom plate, 10... Compression coil spring, 11... Lid body 12.13... Register roller pair,
14...Pressure roller, 15...Clamper 1
6... Reel, 17... Stencil paper, 18... Tension roller, 19... Thermal head, 20...
Platen roller, 21...Cutter device, 22...Conveyance roller, 23.24...Base paper conveyor, 25.
...Base paper supply roller, 26...Guide plate, 27...Second reel, 28...Second thermal head, 29...
Second platen roller, 30... Spare paper mounting table, 31
...Paper ejection fan, 32...Large diameter low-y, 33...
・Small diameter roller, 34...Pachyum conveyor, 35...
・Cover 36... Paper loading table, 37... Lid body, 3
8... Regulation plate, 39... Sorter tape discharge port 40
...Waste board storage box, 41...Lid, 42.43 Pair of plate discharge rollers, 44...Swing lever 45.46...Shredder, 47...Base paper compression member, 48...Document Reading device, 49... line sensor, 50.51...7 automatic interrupter, 52.53... document feeding roller pair 5
4... Original position correction roller, 55.56... Original registration roller pair, 57.58... Original discharge roller pair,
59... Thermal printing paper, 60... Discharge hole, 61.6
2... Base paper transport roller pair, 63... Base paper feed roller 64... Paper reversing roller, 65... Base paper clamper 6
6...Paper clamper, 67.68...Guide roller 69...Paper loading table, 70.71...Discharge conveyor 72...Document table, 73...Document placement table, 74...
Operation panel, 75...Transfer guide, C...Operation side,
M...Prepress unit, P...Paper feeding unit.

Claims (1)

[Scope of Claims] 1. A stencil printing device that prints a calligraphic image on a printing paper by bringing the printing paper into pressure contact with a printing cylinder that stores printing ink inside and around which a stencil paper after stencil making is wound. , a paper feeding means in which printing paper is stacked and stored; a paper pressure contacting means for pressing the lower surface of the printing paper fed by the paper feeding means against the plate cylinder during paper feeding; A paper reversing means for reversing the printing paper and a paper mounting means for mounting the inverted printing paper are arranged in sequence, and the rotational axis of the plate cylinder extends in a direction parallel to the side surface on the operating side of the apparatus main body. A stencil printing apparatus characterized in that the paper loading means is located above the paper feeding means. 2. The stencil printing apparatus according to claim 1, wherein the paper feeding means is provided on the operating side of the plate cylinder. 3. The stencil printing apparatus according to claim 1 or 2, wherein the paper feeding means is constructed so that it can be pulled out from the side surface on the operating side. 4. The paper feeding means includes a paper feeding roller for feeding the uppermost printing paper and at least two stages of paper feeding trays, each of which selectively approaches the paper feeding roller. A stencil printing apparatus according to any one of claims 1 to 3, configured as follows. 5. The stencil printing apparatus according to claim 1, wherein a stencil sheet on which a calligraphy image corresponding to the printed document image is made is stored below the paper feeding means. 6. The stencil printing apparatus according to any one of claims 1 to 5, further comprising a stencil making means for making a calligraphy image corresponding to the printed document image on the stencil paper below the paper feeding means. 7. The stencil printing apparatus according to claim 1, further comprising a calligraphy image forming means for forming a calligraphy image identical to a printed calligraphy image on paper other than printing paper. 8. The stencil printing apparatus according to claim 7, wherein the paper other than the printing paper is thermal printing paper, and the calligraphy image forming means is a thermal head. 9. The stencil printing apparatus according to claim 5 or 6, wherein the stencil paper and the stencil making means are configured so that they can be pulled out integrally from the side surface on the operating side toward the front side. 10. The stencil printing apparatus according to claim 1, wherein both the paper feeding means and the paper mounting means are closed. 11. The stencil printing apparatus according to any one of claims 1 to 10, wherein the printing paper is pressed against the plate cylinder above a horizontal plane containing the rotation center of the plate cylinder. 12. In a stencil printing device that prints a calligraphic image on the printing paper by bringing the printing paper into pressure contact with a printing cylinder, on which printing ink is stored inside and stencil paper after plate making is wrapped around the outer periphery, the printing paper is loaded. A paper feeding device that feeds the stored printing paper sheet by sheet; a paper reversing device that flips the front and back sides of the printing paper before printing fed by the paper feeding device; A paper pressure contact means for pressing the side of the plate cylinder against the plate cylinder, and a paper mounting means for placing the printed printing paper are arranged in sequence, and the rotation axis of the plate cylinder is parallel to the operation side side of the main body of the apparatus. 1. A stencil printing apparatus, wherein the stencil printing apparatus extends in a direction in which the paper is placed, and the paper mounting means is located above the paper feeding means. 13. The stencil printing apparatus according to claim 12, wherein the paper feeding means is provided below the operation side of the plate cylinder. 14. The stencil printing apparatus according to claim 12 or 13, wherein a stencil sheet on which a calligraphic image corresponding to the printed document image is made is stored above the paper feeding means. 15. The stencil printing apparatus according to any one of claims 11 to 14, further comprising a stencil making means for making a calligraphy image corresponding to the printed document image on the stencil paper above the paper feeding means. 16. Claim 15, wherein the stencil paper after plate making is reversed by a paper reversing means and supplied to the plate cylinder.
The stencil printing device described. 17. The stencil printing apparatus according to any one of claims 12 to 16, wherein the printing paper is pressed against the plate cylinder below a horizontal plane containing the rotation center of the plate cylinder. 18. The stencil printing apparatus according to any one of claims 12 to 17, wherein both the paper feeding means and the paper mounting means are closed.