JPH08208096A - Paper ejection device for stencil printer - Google Patents

Abstract

(57) [Summary] [Purpose] With the printed matter placed on it, remove the paper ejection section from the printing section and move it to another storage location. During that time, no pressure is applied to the printed matter by the operator's fingers. And the multiple paper ejection units are prepared, so that a new empty paper ejection unit can be attached to the printing unit instead of the removed paper ejection unit, so that the next printing can be performed immediately. (EN) Provided is a paper discharge device in a stencil printing machine, which can be started and can perform printing efficiently by eliminating waste of printing time due to leaving printed matter. A holding member that detachably attaches a paper ejection unit to a printing unit and rotatably holds between a paper ejection position and a storage position in the printing unit, and holds the paper ejection unit when the paper ejection unit is at the storage position. A discharge tray is detachably attached to the discharge section, and a pair of side guides provided on the discharge tray and an end plate are placed in an upright position and placed on the discharge tray. It can be rotated to and from the folding position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper discharge device in a stencil printing machine.

[0002]

2. Description of the Related Art Conventionally, a stencil printer of this type is constructed as shown in FIG. 9 and includes a printing unit 1, a paper feeding unit 2 and a paper discharging unit 3.
have. The printing unit 1 includes a paper feed roller 5, a separation unit 6, a registration roller 7, a printing drum 8, a printing pressure roller 9, a suction conveyance unit 10, and a table unit 11. The paper feed unit 2 is arranged on one side of the printing unit 1 and has a paper feed tray 62 to which a paper feed tray 61 is attached. The paper discharge unit 3 is disposed on the other side of the printing unit 1, and is provided with a pair of side guides 63 that guide the discharged paper in the left-right direction and an end plate 64 that aligns the leading ends of the paper. It has a paper tray 65, and the paper ejection tray 65 is rotatably attached to the printing unit 1 by a support shaft 66. And usually side guide 63 and end plate 64
And are capable of moving and adjusting in a direction perpendicular to their longitudinal directions, respectively, and that about 500 to 1000 sheets of paper can be stacked on the paper feed unit 2 and the paper discharge unit 3. Has become.

When printing is performed in the stencil printing machine as described above, when a start key of an operation panel (not shown) is turned on, the paper feed tray 61 in the paper feed section 2 is raised to a predetermined position, and the paper feed roller 5 is moved. The paper P loaded on the paper feed table 61 is fed by the paper feed table 61, and only one paper P is separated by the separation unit 6 and is conveyed to the registration roller 7, where registration is performed and the printing drum 8 is conveyed in accordance with the operation timing of 8, and the printing unit 1 presses the printing drum 8 against the printing drum 8 for printing. Thereafter, the printed matter is peeled off from the printing drum 8 by the suction conveyance unit 10 and attached to the paper, and is discharged to the paper discharge unit 3 by the side guide 63 and the end plate 64.
The sheets are arranged in line with each other in 65, and this is repeated until the specified number of printed materials is reached.

[0004]

However, in the above case, since the sheet accommodating capacity of the sheet feeding section 2 and the sheet discharging section 3 is as described above, the number of printed sheets exceeds 1,000. In the middle of printing, the required number of sheets of paper is replenished in the paper feed unit 2, and the printed matter is ejected from the paper ejection unit 3 so as not to exceed 1000 sheets. Must be repeated until the end. Therefore, in order to prevent the replenishment of the sheets to the sheet feeding unit 2, it is proposed to provide a large-capacity sheet feeding unit 2 (not shown) capable of stacking about 2000 to 4000 sheets. There is. However, in such a case, when the number of printed sheets is larger than the sheet accommodating capacity of the paper discharge unit 3, the printed matter is repeatedly taken out from the paper discharge unit 3 as in the above case, and the printed matter is stored in another storage space each time. Since there is no change in having to move to a place and pressure on the printed matter is inevitable at that time, there is a problem in that the occurrence of set-off cannot be prevented.

Therefore, conventionally, in order not to cause set-off,
If there are several copies of printed matter that need to be left for a few minutes to several tens of minutes after printing, depending on the type of paper, there is no time to leave such printed matter. It is necessary to immediately take out the printed matter from the paper discharge section and perform the next printing, and therefore, in such a case, since pressure is inevitably applied to the printed matter as described above, set-off may occur, In addition, there is a problem in that printing must be interrupted for the above-mentioned leaving time for leaving the printed matter, and wasteful printing time is required and efficient printing cannot be performed.

Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional paper discharge device, to remove the paper discharge unit from the printing unit while the printed matter is placed, and to move it to another storage location. Since no pressure is applied to the printed matter by the operator's fingers, set-off does not occur, and by preparing multiple paper ejection units, a new empty paper ejection unit can be used instead of the removed paper ejection unit. Provided is a paper ejecting device, which can immediately start the next printing by mounting the paper unit on the printing unit, and can efficiently perform printing by eliminating waste of printing time due to leaving the printed matter. It is in.

[0007]

In order to achieve the above-mentioned object, the present invention provides a stencil printing machine having a printing section, a paper feeding section, and a paper discharging section. In the machine, a holding member that detachably attaches the paper ejection unit to the printing unit and rotatably holds between the paper ejection position and the storage position in the printing unit and holds the paper ejection unit when the paper ejection unit is in the storage position is provided. A discharge tray is detachably attached to the discharge section, and a pair of side guides provided on the discharge tray and an end plate are placed in an upright position and placed on the discharge tray. It is characterized in that it is rotatable between the folding position and the folding position. The invention described in claim 2 is the same as the invention described in claim 1,
The paper discharge unit is detachably attached to the movable table, and the movable table is connectable to the printing unit.

According to a third aspect of the present invention, in a stencil printing machine having a printing unit, a paper feeding unit, and a paper discharging unit, the paper feeding unit has a paper discharging table at a plurality of vertical positions including a paper discharging position. Is detachably mounted, and the printing unit is provided with a drive mechanism for moving the discharge tray up and down. According to a fourth aspect of the present invention, in the third aspect of the invention, the type of paper and the number of sheets to be printed for each original are input, and the print start key is turned on to set the preset paper type. The number of sheets to be stacked on the discharge section is checked for each, and the control is performed so that the printed matter is discharged to the discharge section for each maximum number of stacked sheets on the same discharge section for each document, and one original is printed. If the number of sheets to be stacked is greater than the maximum number of sheets to be stacked in the paper output section, it is possible to control so that the maximum number of sheets to be stacked is discharged to the first sheet discharge section and then the remaining printed matter is discharged to the next sheet discharge section. It is a feature. According to a fifth aspect of the present invention, in the third aspect of the present invention, a sheet detection sensor and an input / output connector are provided on the delivery tray of the delivery section, and a signal input / output connector of the sheet detection sensor is provided on the bracket. Both the input and output connectors are connected when mounting and setting the paper output tray to the paper output section.When the paper output tray is not set in the paper output section and when the paper is set It is characterized in that the paper detection sensor outputs a signal either when the paper is loaded, or when the paper is set in the paper output section on the paper output tray and the paper is not loaded.

[0009]

In the invention of claim 1 as described above,
When mounting the paper ejection unit on the printing unit, the paper ejection tray is inserted into the ejection port of the printing unit to hold the side guide and the end plate in the upright position. The printed materials printed in step 1 are sequentially stored, and when the number of stored sheets reaches a predetermined number, remove the paper ejection section from the printing section and move the printed materials to another storage place with the printed article placed on this paper ejection section. When mounting the other empty paper ejection unit to the printing unit and storing such a paper ejection unit in the printing unit, the side guides and the end plates are rotated from the upright position to the folding position and placed on the paper ejection tray. Then, the discharge table thus configured is rotated toward the storage position of the printing unit, and is held by the holding member at this position. According to the second aspect of the present invention, when the paper discharge unit is attached to or pulled out of the printing unit, the movable base is moved without setting the paper discharge unit while being set on the movable base.

According to the third aspect of the invention, printing is performed in the printing section by the plate made from the first original, and the printed matter is discharged onto the discharge tray at the discharge position. Then, printing is performed in the same manner with the second original, but the drive mechanism of the paper discharge unit is operated until the paper feeding operation for that is started, and the paper discharge tray at the paper discharge position is reached. And the paper ejection table at the standby position are moved toward the paper ejection position and the upper removal position, respectively. Then, when the discharge tray on which the printed matter at the discharge position is placed reaches the removal position, printing by the second document is started, and the printed matter is discharged onto the new discharge tray at the discharge position. And like this 2
During the printing operation for the first sheet, the old paper ejection tray on which the printed matter is placed is removed and replaced with a new empty paper ejection tray.

According to a fourth aspect of the present invention, the type of paper and the number of printed sheets for each original are input to the control unit of the printing apparatus using the operation panel, and the preset paper type is selected. The number of sheets to be stacked on the paper ejection unit is checked, and the control is performed so that printed materials are ejected to the paper ejection unit for each maximum number of sheets to be stacked on the same paper ejection unit for each document unit. If the number of sheets is larger than the maximum number of sheets to be stacked in the paper output section, printing is temporarily suspended after discharging the maximum number of sheets to be stacked in the first sheet output section, and the remaining printed matter is output to the next sheet output section. Control.

According to the fifth aspect of the invention, when the paper ejection tray is not set in the paper ejection section, and when the paper ejection tray is set and paper is loaded, another empty paper ejection tray is used. Set to the paper ejection position or move to the same position to eject paper,
When there is no other empty paper ejection tray, the paper detection sensor outputs the signal to notify. If the paper output tray becomes full during continuous printing and the signal from the paper detection sensor informs the operator, either replace the paper output tray with another paper output tray or print the printed material from the full paper output tray. By taking out and emptying the discharge tray, the next process can be automatically continued without turning on the discharge full release key.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the first embodiment of the present invention shown in FIGS. 1 to 4, some of the parts similar to the conventional ones are omitted from the drawing, and other similar parts are designated by the same reference numerals. The description will be omitted and mainly different parts will be described. The printing unit 1 is open on the side of the paper discharge unit 3, and a support shaft 12 is laterally provided under the opening. The support shaft 12 is provided on both side ends of a horizontal bracket 14 as shown in FIG. The standing portion 13 provided is pivotally supported, and the standing portion 13 is provided with a restraining portion 16 in a direction perpendicular to the standing portion 13. And the printing section 1
A stopper rod 17 which is located below the bracket 14 and engages with the bracket 14 is horizontally provided below the bracket 14, and a magnet 18 is attached above the stopper rod 17. As shown in FIG. 2, the paper output tray 20 of the paper output unit 3 has a downward inclined surface 21 on the front side on the printing unit 1 side, and the paper output table 20 is attached to the subsequent rear flat surface portion 22. 1
A lateral groove 23 that is locked to the support shaft 12 when inserted into the opening of the side guide 24 and the end plate 26 is movable in a direction perpendicular to the side guide 24 and the end plate 26 while standing upright like the conventional one. As shown by the arrow in FIG. 1, it can be folded inward about the lower pivot portion. An appropriate locking tool may be provided instead of the magnet 18.

In the above-mentioned configuration, when the paper discharge unit 3 is stored in the printing unit 1, the side guide of the paper discharge unit 3 is used.
24 and the end plate 26 are folded, the paper ejection tray 20 is inserted into the lower portion of the opening of the printing unit 1, and the leading end of the paper ejection tray 20 is brought into contact with the restraining portion 16 so that the lateral groove 23 of the paper ejection tray 20 is formed. Support shaft as shown in
It is locked to 12 and is brought into such a state together with the bracket 14 so as to rotate clockwise around the support shaft 12 as shown by the single arrow in FIG. In order to return such a thing to the paper ejection position, the paper ejection section 3 is rotated counterclockwise as shown by the double arrow opposite to the above, and the side guide 24 and the end plate 26 are folded. Stand up from the position to obtain the state shown in FIG. The printed matter printed in the printing unit 1 is discharged onto the discharge tray 20 of the discharge unit 3 in such a state, and is stored in the discharge unit 3 in the same manner as the conventional one. When the number of sheets reaches the required number, the sheet discharge section 3 is pulled out from the printing section 1 with the printed matter placed on the sheet discharge tray 20 and placed at another place, and the other sheet discharge sections 3 are set in the same manner as described above. And attach it to the printing unit 1.

FIG. 5 shows a second modified version of the first embodiment.
An embodiment is shown, and the changed part is that the paper discharge unit 3 is placed on a moving table 27, and a moving caster 28 is attached to the lower part of the moving table 27. A magnet 29 attracting the printing unit 1 is attached to the side surface.
In such a case, the paper discharge section 3 is attached to the printing section 1,
Alternatively, at the time of pulling out, the moving table 27 is moved without setting the sheet discharging section 3 while being set on the moving table 27, and the moving operation can be easily performed with a small labor. An appropriate locking tool may be provided instead of the magnet 29.

A third embodiment is shown in FIGS.
In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted, and mainly different parts will be described. In this embodiment, the paper feeding unit 2 uses a large-capacity one, which is omitted in the conventional example, but may be a normal one separately. This embodiment is different from the first embodiment in that the transport distance of the suction transport unit 31 is long enough to reach the discharge side surface of the printing unit 1 and the discharge unit 3 has a plurality of stages. The paper output unit 3 includes a printing unit 1 and a table unit.
The support frame 32 is detachably attached to the support 11. The support frame 32 has longitudinal front and rear side plates 33 and 34, and lateral stays 36 and 37 connecting these vertically. Each of the front and rear side plates 33, 34 has a vertically extending through hole 38, and two or more support shafts 39 are slidably fitted in the through hole 38,
Both ends of the support shaft 39 project outward from the through hole 38, and the projecting ends move vertically along the wall surfaces of the front and rear side plates 33, 34.
Is anchored in. In this embodiment, the paper discharge section 3 has two stages, but the number of paper discharge sections 3 may be larger than this if necessary.

A pinion 42 that meshes with the rack of the rack plate 41 and a gear 43 are pivotally supported above and below the front and rear side plates 33 and 34, and pulleys 44 and 45 are attached to the pinion 42 and the gear 43. , 45, a timing belt 46 is wound around and interlocked with each other. The gear 43 meshes with a drive gear 50 of a drive motor 47 attached to the front side plate 33, and the gears 43 of the front and rear side plates 33 and 34 are connected by a connecting rod 48. A bracket 49 is attached to the support shaft 39, and the bracket 49 has a bottom plate 51 as shown in FIGS.
A lateral groove 23 of the paper ejection tray 20 having an upright portion 52 on both sides of the paper, a box-shaped restraining portion 53 in the front thereof in a direction perpendicular to the upright portion, and an opening in the rear.
Is provided with a locking portion 54.

In the above-mentioned one, when several originals are set in the plate making section (not shown), a multi-stage mode of the operation panel (not shown) is selected, and the start key is turned on, the plate made by the first original is made. Thus, the specified number of sheets of paper fed from the paper feed unit 2 in the printing unit 1 are printed, and the printed matter is ejected to the ejection tray 20 at the ejection position B in the middle stage in FIG. Then, printing is performed in the same manner with the second original, but the drive motor 47 of the paper discharge section 3 is operated until the paper feeding operation for that is started, and the gear 43, the pulley 44, Timing belt
46, via the pinion 42, the rack plate 41 is supported by the bracket 49 supported by the rack plate 41 in the same manner as in each of the above-described embodiments, the sheet discharge tray 20 at the sheet discharge position B and the sheet discharge tray at the standby position A.
Both 20 are moved upward, and these paper ejection trays 20 move toward the paper ejection position B and the upper removal position C, respectively. When the paper ejection tray 20 on which the printed matter at the paper ejection position B is placed reaches the removal position C, a detection means (not shown) detects the paper ejection tray 20 and outputs the signal to display it. Notify by means or alarm means. After that, printing with the second original is started, and the printed matter is discharged onto the discharge tray 20 at the discharge position B,
The paper ejection tray 20 at the removal position C on which the printed matter is placed during the printing operation for the second sheet is removed in the same manner as in the other embodiments and replaced with a new empty paper ejection tray 20. Remove position C
Set to.

When a paper discharge full release key (not shown) is turned on, the printing is similarly performed on the third original after the printing on the second original is completed.
The drive motor 47 of the paper ejection unit 3 is operated in the opposite direction until the paper feeding operation for that purpose is started, and the paper ejection tray 20 located at the removal position C and the paper ejection position B is reversely operated. Each of them moves downward toward the paper discharge position B and the standby position A, and the detection means (not shown) detects them and outputs the signal to notify by the display means or the alarm means. Then, the printing with the third original is started in the same manner as described above, and during this printing, the printed matter is placed, the paper ejection tray 20 at the standby position A is removed, and a new empty paper ejection tray is replaced. When 20 is set, the printed matter is discharged onto the discharge tray 20 located at the discharge position B, and by repeating such a process, the subsequent printing and discharging operations are continuously performed.

As described above, conventionally, when there are several copies of printed matter which must be left for several minutes to several tens of minutes after printing depending on the type of paper so as not to cause set-off, Since there is no time to leave such printed matter, it is necessary to take out the printed matter from the paper discharge section and perform the next printing immediately after printing. Settling may occur because pressure is applied to the printed material, and printing must be interrupted for the above-mentioned leaving time for leaving the printed material, and wasteful printing time is required for efficient printing. I can't. On the other hand, in these embodiments, as described above, the paper discharge unit 3 is removed from the printing unit 1 while the printed matter is placed and moved to another storage location, during which pressure is applied to the printed matter by the operator's fingers. Since this is not possible, no set-off will occur. Further, in these embodiments, as in the first and second embodiments, a plurality of paper discharge units 3 or
By preparing a plurality of paper ejection trays 20 as in the embodiment, a new empty paper ejection unit 3 is attached to the printing unit 1 instead of the removed paper ejection unit 3, so that the next printing is immediately performed. It is possible to start printing, and to efficiently perform printing while eliminating waste of printing time due to leaving the printed matter.

Next, a fourth embodiment, in which an operation different from this is carried out by using the third embodiment, will be described. In this embodiment, an operation panel (not shown) is used to control the printing apparatus.
Enter the type of paper and the number of prints for each original, and compare it with the preset number of sheets to be loaded on the paper output unit 3 for each paper type. The printed matter is controlled to be discharged to the paper discharge section 3 for each number of stacked sheets. For example, the maximum number of copies of the type of input paper is 500, the number of printed sheets of the first document is 200, the number of printed sheets of the second document is 100, and the number of printed sheets of the third document is 150. Four
If the number of printed originals is 200,
Since the maximum number of sheets to be stacked is 450 sheets in total, a total of 450 sheets are printed, so the first to third sheet discharge units 3 are stacked with the first to third sheets of printed matter, and the fourth sheet and subsequent sheets are the same as described above. The maximum number of sheets to be stacked is determined, and the printed matter is stacked on the next paper discharge unit 3. When the number of printed sheets of one document is larger than the maximum number of sheets to be stacked in the sheet discharging section 3, the sheet is discharged to the first sheet discharging section 3 for the maximum number of sheets to be stacked, and then the printing is temporarily stopped, and then the next sheet discharging section 3 is ejected. Three
Then, the remaining printed matter is controlled to be discharged.

As described above, in the fourth embodiment, as in the first, second, and third embodiments, set-off does not occur, and efficient printing can be performed.
Since the stacking capacity of the printed matter of one sheet discharge unit 3 can be utilized to the maximum, the number of times the operator replaces the sheet discharge unit 3 or takes out the printed matter from the sheet discharge unit 3 is minimized. You can stay.

In addition to modifying a part of the third embodiment,
A fifth embodiment, which operates differently from the third embodiment, will be described. In this embodiment, a paper detection sensor (not shown) and an input / output connector (not shown) are provided on the paper output tray 20 of the paper output unit 3, and a bracket 49.
The signal input / output connectors of the paper detection sensor are attached to the respective papers, and when the paper ejection tray 20 is set in the paper ejection unit 3, the both input / output connectors are connected. When the paper output tray 20 is not set in the paper output section 3, and when the paper is set and paper is loaded, the paper detection signal is turned off and the paper output tray 20 is set in the paper output section 3. However, when the sheets are not stacked, the sheet detection signal is turned on. The paper detection sensor detects the presence or absence of paper, and may be of any type such as a light reflection type or a filler type, and the on / off may be reversed.

In such a case, when the paper output tray 20 is not set in the paper output unit 3 and when the paper output tray 20 is set and paper is loaded, another empty paper output tray 20 is output. Set to the paper position B or move to the same position to eject paper,
When there is no other empty paper ejection tray 20, the paper detection sensor outputs the signal and notifies it by the display means or alarm means not shown. When the discharge tray 20 becomes full during the continuous printing and is notified as in the third and fourth embodiments, the operator replaces the discharge tray 20 with another discharge tray 20, or the discharged discharge tray 20 becomes full. By removing the printed matter from the paper tray 20 and emptying the paper ejection tray 20, the next process can be automatically continued without turning on the paper ejection full release key. It is possible to save the trouble of
It is possible to prevent mistakes such as taking out the printed matter from 20.

[0025]

The present invention is as described above, and the invention according to claim 1 is a stencil printing machine having a printing unit, a paper feeding unit, and a paper discharging unit, and the paper discharging unit is provided in the printing unit. Has a holding member that holds the paper detachably and rotatably between the paper discharge position and the storage position in the printing unit, and holds the paper discharge unit when the paper discharge unit is in the storage position. The paper ejection tray is detachably mounted, and a pair of side guides provided on the paper ejection tray and the end plate are rotated between a standing position and a folding position placed on the paper ejection tray. Since it is movable, it is possible to remove the paper discharge section from the printing section with the printed material placed and move it to another storage location, during which the operator's finger pressure is not applied to the printed material, which prevents set-off. It does not occur, and it is possible to replace the removed paper ejection unit by preparing multiple paper ejection units. By installing a new empty paper discharge section in the printing section, the next printing can be started immediately, and waste of printing time due to leaving the printed matter can be omitted, and efficient printing can be performed. When the paper discharge operation is not performed, there is an effect that the side guide and the end plate can be folded and the paper discharge unit can be stored in the storage position of the printing unit so as not to get in the way. The invention described in claim 2 is the same as the invention described in claim 1,
The paper discharge unit is detachably attached to the moving table, and the moving table can be connected to the printing unit. Therefore, when the paper discharging unit is attached to or removed from the printing unit, the moving table is moved. As a result, even a weak worker such as a girl can easily operate. According to a third aspect of the present invention, in a stencil printing machine having a printing unit, a paper feeding unit, and a paper discharging unit, the paper feeding unit has a paper ejection table that can be attached and detached at a plurality of vertical positions including a paper ejection position. Since the printing unit is provided with a drive mechanism for moving the paper ejection table up and down, no pressure is applied to the printed matter by the operator's fingers, so that set-off does not occur, By preparing the paper ejection tray of, by installing a new empty paper ejection tray in the printing section instead of the removed paper ejection tray, the next printing can be immediately performed continuously. There is an effect that waste of printing time due to leaving printed matter can be omitted and printing can be performed efficiently. The invention described in claim 4 is the same as the invention described in claim 3,
Enter the paper type and the number of prints for each document, and turn on the print start key to check the preset number of sheets loaded in the paper discharge section for each paper type, and make the same for each document. The printed matter is controlled to be discharged to the discharge section for each maximum number of sheets to be stacked on the sheet discharge section, and when the number of printed sheets of one original document is larger than the maximum number of sheets to be stacked on the sheet discharge section, After discharging the maximum number of sheets to be stacked on the paper section, the remaining printed matter is controlled to be discharged to the next sheet discharging section, so that the printed matter stacking capacity of one sheet discharging section can be maximized. Therefore, there is an effect that the work of taking out the printed matter by the operator can be minimized. According to a fifth aspect of the present invention, in the third aspect of the present invention, a sheet detection sensor and an input / output connector are provided on the delivery tray of the delivery section, and a signal input / output connector of the sheet detection sensor is provided on the bracket. Installation,
When the paper output tray is set in the paper output section, both the input / output connectors are connected, and when the paper output tray is not set in the paper output section and when the paper is set and loaded. The paper detection sensor outputs a signal either when the paper is being loaded, or when the paper output tray is set in the paper output section and no paper is loaded. This has an effect of preventing a mistake in setting a set and a mistake in taking out a printed material from the paper ejection tray.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment of the present invention.

FIG. 2 is a perspective view of a part of the sheet discharge tray surrounded by line 2 of the above.

FIG. 3 is a perspective view of the bracket surrounded by line 3 of the above.

FIG. 4 is a partial front view showing a state in which the above-described paper ejection tray is inserted into a bracket.

FIG. 5 is a front view of the second embodiment of the present invention.

FIG. 6 is a perspective view of a third embodiment of the present invention.

FIG. 7 is a partial enlarged perspective view of the above.

FIG. 8 is a partial front view showing a state in which the above-described sheet discharge tray is inserted into a bracket.

FIG. 9 is a front view of a conventional paper discharge device of the same type as the present invention.

[Explanation of symbols]

 1 Printing Section 2 Paper Feeding Section 3 Paper Ejection Section 8 Printing Drum 12 Support Shaft 13 Standing Section 14 Bracket 16 Restraint Section 17 Stopper Rod 18 Magnet 20 Paper Ejection Table 23 Side Groove 24 Side Guide 26 End Plate 27 Moving Table 29 Magnet 32 Support Frame 33 Front plate 34 Rear plate 38 Through hole 39 Support shaft 41 Rack plate 42 Pinion 43 Gear 44 Pulley 45 Pulley 46 Timing belt 47 Drive motor 49 Bracket 52 Standing portion 53 Restraint portion

Claims (5)

[Claims] 1. A stencil printing machine having a printing unit, a paper feeding unit, and a paper discharging unit, wherein the paper discharging unit can be attached to and detached from the printing unit and can be rotated between a paper discharging position and a storage position in the printing unit. 1 has a holding member that is movably held and holds it when the paper discharge unit is in the storage position. A paper discharge tray is detachably attached to the paper discharge unit and is provided on the paper discharge tray. A paper ejection device in a stencil printing machine, wherein a pair of side guides and an end plate are rotatable between an upright position and a folding position placed on a paper ejection tray. 2. The paper discharge unit is detachably attached to a movable table,
The sheet discharging device of the stencil printing machine according to claim 1, wherein the movable table is connectable to the printing unit. 3. A stencil printing machine having a printing unit, a paper feeding unit, and a paper discharging unit, wherein the paper discharging unit is detachably mounted at a plurality of vertical positions including a paper discharging position, A paper discharge device in a stencil printing machine, wherein a drive mechanism for moving the paper discharge table up and down is provided in the paper discharge unit. 4. The type of paper and the number of prints for each original are input, and the print start key is turned on to collate with a preset number of sheets to be loaded on the paper discharge unit for each type of paper, When the number of printed sheets of each original is controlled to be ejected to the ejecting section for each maximum number of sheets to be ejected to the same ejecting section, and the number of printed sheets of one original is larger than the maximum number of sheets to be ejected to the ejecting section. The stencil printing machine according to claim 3, wherein the stencil printing machine controls to discharge the maximum number of stacked sheets to the first sheet discharging section and then discharge the remaining printed matter to the next sheet discharging section. Paper ejection device. 5. When the paper detection sensor and the input / output connector are attached to the paper output tray of the paper output section and the signal input / output connector of the paper detection sensor is attached to the bracket, and the paper output tray is set in the paper output section. Both the input / output connectors are connected to each other, and when the paper ejection tray is not set in the paper ejection section, and when the paper sheets are set and stacked, or when the paper ejection tray is ejected to the paper ejection tray. 4. The paper discharge device for a stencil printing machine according to claim 3, wherein the paper detection sensor outputs a signal when the paper is set in the unit and the paper is not stacked.