KR100514283B1 - Multi-sheets Buffer System in Finisher - Google Patents

Abstract

An object of the present invention is to provide a paper processing apparatus that can improve the reprocessing efficiency of the paper by preventing the paper conveyed through the inlet roller in the reprocessing process of the paper does not delay or wait for a certain time.

In order to achieve the above object, the present invention provides a paper conveying path 105, a compiler 106 for loading paper conveyed through the paper conveying path, a jogger 107 for arranging paper loaded in the compiler, and A stapler 103 for reprocessing the sheets aligned by the jogger, buffering and loading a plurality of sheets of paper between the paper conveying path 105 and the compiler 106, and then loading the stacked sheets. A paper buffer device 125 is provided to transfer to a compiler.

In particular, the paper buffer device 125 is a buffer configured to load a plurality of sheets of paper between the inlet roller 108 and the discharge roller 118 installed on the paper conveying path, and the inlet roller and the discharge roller. It is provided with a tray 126, and is composed of a pressure roller 130 and the idle roller 128 to move the paper loaded in the buffer tray toward the discharge roller at one time.

Description

Paper Processing Equipment {Multi-sheets Buffer System in Finisher}

The present invention relates to a paper processing apparatus for reprocessing paper discharged from an image forming apparatus such as a printer, a copying machine, a printing press, and the like.

More specifically, in the paper processing apparatus, it is to provide a structure of a paper buffer device capable of reprocessing the paper without delay of the paper transfer in the process of transferring the paper to the compiler.

In general, the image processing apparatus includes a paper processing apparatus 2 for reprocessing (post-processing) paper discharged from the image forming apparatus 1 as shown in FIG.

The paper processing apparatus may be configured to enable a variety of reprocessing operations such as punching, bookbinding, stapling, etc. The present invention will be described using a paper processing apparatus provided with a stapler 3 as an example.

One example of a conventional paper processing apparatus includes a stapler 3 for stapling paper, a compiler 6 for waiting for paper to be loaded before stapling, and an accurate paper for stapling paper loaded in the compiler. A jogger 7 for aligning with the work position and a paper conveying path 5 for feeding the paper to the compiler are configured, and a stacker 4 for discharging and stacking the stapled paper to the outside is configured.

In the conventional paper processing apparatus, a paper conveying process will be described with reference to FIGS. 2A and 2B.

Sheets of paper are loaded into the compiler 6 one by one through the sheet conveying path 5 on which the inlet roller 8 and the discharge roller 18 are installed. When the paper 10 loaded in the compiler 6 is loaded in the compiler by the set number of jobs, that is, the number of jobs to be stapled, the paper transport path 5 stops paper feeding and aligns the work paper loaded in the compiler. The jogger 7 is operated for this purpose. After the jogger 7 operates to complete the alignment of the paper 10, the stapler 3 operates to complete the stapling operation of the paper. When the stapling operation is completed, the stopped paper transfer is started again, and the process of loading paper into the compiler 6 is repeated until a predetermined number of sheets are loaded.

The conventional paper processing apparatus constituted with the above system is arranged while the jogger 7 aligns the sheets on the compiler 6 and stapls the aligned sheets to be discharged to the stacker 4 (A in Fig. 2B). At the time of the area indicated by, the transfer of the sheet 11 on the sheet conveying path 5 is stopped and the standby state is maintained.

Therefore, in the conventional paper processing apparatus, since the transfer of the paper is stopped while the stacked paper is aligned and stapled, the work efficiency of the paper processing device is reduced and the processing speed is delayed as long as the feeding of the paper is stopped. This happens.

In particular, when reprocessing by setting a small number of sheets, the paper waiting cycle of the paper conveying path becomes faster, so that the overall waiting time becomes longer, and the processing speed of the paper processing apparatus is further lowered.

The present invention has been made to solve the above problems, a paper buffer device for buffering and storing the paper to be transported in the paper transport path, and buffering a predetermined number of sheets in the paper buffer device after the buffering Configured paper to be fed to the compiler.

The paper buffer device of the present invention constitutes a buffer tray between the inlet roller and the discharge roller of the paper conveying path, and constitutes a pressure roller that can be moved and detached from the idle roller on the buffer tray, and the pressure roller is a predetermined predetermined roller. When the number of sheets of paper is loaded in the buffer tray, the paper rollers are configured to slide with the idle roller so that the paper loaded in the buffer tray can be moved toward the discharge roller at once. Sliding and detaching operations of the pressing roller and idle roller are controlled according to a sensor signal for countering the loaded paper.

When the paper does not need to be buffered on the buffer tray, that is, when the paper on the paper feed path is discharged to the stacker without reprocessing the paper, the sliding state of the pressure roller and the idle roller is maintained.

Accordingly, it is an object of the present invention to provide a paper processing apparatus that improves the reprocessing efficiency of paper by preventing the paper conveyed through the inlet roller from being delayed or waiting for a predetermined time in the paper reprocessing process.

It is still another object of the present invention to supply or discharge the paper supplied through the paper conveyance path at a uniform speed regardless of the paper alignment and reprocessing operation of the paper processing apparatus.

In order to achieve the above object, the present invention provides a paper conveying path, a compiler for loading paper conveyed through the paper conveying path, a jogger for aligning paper loaded in the compiler, and reprocessing the paper aligned by the jogger. A paper processing apparatus having a reprocessing means,

The paper buffer device is configured to buffer and load at least one sheet of paper between the paper conveying path and the compiler, and to transfer the loaded paper to the compiler.

The paper buffer device includes an inlet roller and an outlet roller installed on the paper conveying path, and a buffer tray configured to stack at least one sheet of paper between the inlet roller and the discharge roller, and load the paper into the buffer tray. It is characterized in that the paper discharge means for moving the drawn paper toward the discharge roller at a time.

The paper discharging means comprises an idle roller installed to protrude slightly from the surface of the buffer tray, and a pressing roller which is capable of sliding and detaching from the idle roller, and is loaded in the buffer tray between the idle roller and the pressing roller. It is configured so that the paper to be located.

Between the inlet roller and the buffer tray is provided a guide for inducing accurate loading of the paper in the buffer tray.

3 to 7, the technical configuration and operation of the paper processing apparatus of the present invention will be described in detail.

3 is a view for explaining a paper buffering process of the paper processing apparatus of the present invention. 4 is a view for explaining a transfer structure of buffered paper in the paper processing apparatus of the present invention. 5 is a view for explaining a structure of controlling the operation of the pressure roller of the paper buffer device of the paper processing apparatus of the present invention by a sensor. Fig. 6 is a view for explaining a paper conveying structure in a mode in which a paper reprocessing is not executed in the paper processing apparatus of the present invention. 7 is a flowchart for explaining the operation of the paper processing apparatus of the present invention.

In the paper processing apparatus 102 of the present invention, a paper conveying path 105 is formed between the inlet roller 108 and the ejecting roller 118 which are always driven in the driving mode of the paper processing apparatus, and is conveyed to the paper conveying path. And a paper buffer device 125 including a paper tray means for discharging the paper on the buffer tray, and a paper discharge means 120 for discharging the paper on the buffer tray.

The paper discharge means is configured to move toward and away from the idle roller 128 and the idle roller 128 slightly protruding from the upper portion of the buffer tray 126 to the idle roller 128. It consists of 130.

The pressure roller 130 is controlled by the paper sensor 133 is installed in the vicinity of the inlet roller.

In addition, a guide 134 is installed on the buffer tray 126 to press the paper 111 to be transferred toward the buffer tray so that the paper is correctly loaded on the buffer tray.

The length of the surface of the buffer tray 126 on which the paper 111 is stacked is larger than the length of the paper to be loaded so that the loaded paper does not move toward the discharge roller 118 until the pressure roller 130 is operated. .

The paper loaded in the buffer tray is supplied to the compiler 106 by the operation of the subscription roller, and the paper 110 supplied to the compiler causes the jogger 107 to align the paper when a predetermined number of sheets are loaded. The jogger moves the paper loaded on the compiler to a stapler 103 which functions as a paper reprocessing means to reprocess the loaded paper.

The paper reprocessing means may be configured as a bookbinding machine for attaching a punching machine or a tape to form a hole in the middle of the paper in addition to the stapler to form a book, but the stapler has been described in the present invention.

A paper reprocessing process of the paper processing apparatus of the present invention will be described in detail with reference to the flowchart of FIG. 7 and FIGS. 3 to 6.

First, the paper is fed so as to feed the paper 111 to be reprocessed toward the entrance roller 108 which is always driven in the driving mode of the paper processing apparatus through the step of initializing the system of the paper processing apparatus (S101).

When the paper 111 is fed, the number of sheets to be loaded into the buffer tray is set according to a control system (not shown) of the paper processing apparatus (S103).

When the number of buffers is set as described above, the paper 111 is transported along the paper transport path through the inlet roller 108, and the paper passing through the inlet roller is transported to the buffer tray 126.

The paper 111 transferred to the buffer tray is loaded by the number of sheets set in the buffer tray 126 according to the operation S104 of the sensor 133 (S105).

If a paper jam or a paper conveying error occurs in the paper conveying path in the sensor operation process (S106), the paper processing apparatus waits until the user of the paper processing apparatus releases the jam or error of the paper.

Until the number of buffers set by the user, as shown in FIG. 3, the pressure roller 130 is kept separated from the idle roller 128 to be loaded in the buffer tray 126.

Subsequently, when the number of sheets of paper set by the user is loaded into the buffer tray, the press roller 130 is operated as shown in FIG. 4 (S106) and the paper 111 buffered on the buffer tray 126 by sliding with the idle roller 128. Is moved toward the discharge roller 118 which is always driven in the drive mode of the paper processing apparatus. When the leading end of the paper 111 conveyed by the operation of the pressure roller passes through the inlet of the discharge roller 118 and starts to be transferred by the sliding force of the discharge roller, the pressure roller is the inlet of the first paper to be buffered next. After passing through the roller 108 is configured to move to the original position before reaching the position of the pressure roller (S107).

That is, the pressure roller is operated so that the tip of the buffered sheet 111 is turned over to the discharge roller 118 and immediately moved to its original position so that the transfer delay of the first buffered sheet does not occur. Subsequently, the sheet conveyed toward the discharge roller is loaded into the compiler 106, and when the loaded sheet 110 reaches a predetermined number of reprocessed sheets, the jogger 107 operates to align the sheets loaded in the compiler. The reprocessed paper aligned on the compiler is reprocessed by the stamper 103, and the reprocessed paper is discharged and stacked on the stacker 104.

During the reprocessing of the paper loaded on the compiler 106 as described above (during operation of the paper, aligning the paper, stapling, and then ejecting it to the stacker 104), the inlet roller ( 108, the paper conveying system is loaded and buffered, and when the reprocessing process on the compiler is finished, the paper conveying system is configured so that the paper buffered in the buffer tray can be conveyed to the compiler 106 again.

Therefore, since the paper conveyed through the inlet roller 108 is supplied at regular time intervals without waiting time, no loss of working time occurs in the process of reprocessing the paper, and the paper conveying efficiency of the paper processing apparatus is greatly increased. Is improved.

Of course, the operation timing setting of the pressure roller, that is, the paper buffering number setting, is configured so that the paper on the compiler can be appropriately adjusted according to the reprocessing time.

In a state in which the stamper is not driven, that is, when the paper is transferred to the compiler 106 and the paper is not reprocessed, the paper buffer number is set to one sheet and the paper coming in through the paper conveying path as shown in FIG. The registration roller 130 may be slid to the idle roller 128 so that the 111 is not loaded into the buffer tray 126 and is immediately discharged to the stacker 104.

The paper buffer device 125 of the paper processing apparatus of the present invention comprises a buffer tray 126 between the inlet roller 108 and the discharge roller 118 of the paper feed path 105, and an idle roller (on the buffer tray). And a pressing roller 130 capable of sliding and disengaging at the 128, and the pressing roller slides with the idle roller when a predetermined number of predetermined sheets of paper is loaded in the buffer tray, and discharges the paper loaded in the buffer tray. 118) can be configured to be moved at a time.

By configuring a paper processing device having the above characteristics in the paper processing device, the paper conveying through the inlet rollers is not delayed or waited for a certain time in the paper reprocessing process, thereby improving the efficiency of paper reprocessing. You can get it.

In addition, it is possible to obtain the effect that the paper supplied through the paper conveying path is supplied and discharged at a uniform speed regardless of the sheet alignment and reprocessing operation of the paper processing apparatus.

1 is a view for explaining the structure of a general paper processing apparatus configured in the image processing apparatus;

2A and 2B are views for explaining a paper conveying process in the conventional paper processing apparatus.

3 is a view for explaining a paper buffering process of the paper processing apparatus of the present invention;

4 is a view for explaining a transfer structure of a buffered sheet in the sheet processing apparatus of the present invention;

5 is a view for explaining a structure for controlling the operation of the pressure roller of the paper buffer device configured in the paper processing apparatus of the present invention by a sensor,

FIG. 6 is a diagram for explaining a paper conveying structure in a mode in which a paper reprocessing is not executed in the paper processing apparatus of the present invention;

7 is a flowchart for explaining the operation of the paper processing apparatus of the present invention.

* Description of the symbols for the main parts of the drawings *

1-Image forming apparatus 2, 102-Paper processing apparatus

3, 103-Stapler 4, 104-Stacker

5, 105-Paper path 6, 106-Compiler

7, 107-jogger 8, 108-entrance roller

10,11,100,111-Paper 120- Paper ejection means

125-Paper Buffer Unit 128-Idle Roller

130-Pressure Roller 133-Sensor

134-Guide

Claims (5)

A paper feed path 105, a compiler 106 for loading paper conveyed through the paper feed path, a jogger 107 for aligning paper loaded in the compiler, and a sheet aligned by the jogger. At least one sheet of paper is buffered and loaded between the reprocessing means 103 for processing and the paper conveying path 105 and the compiler 106, and then the paper buffer is transported to the compiler. In the paper processing apparatus provided with the apparatus 125, The paper buffer device 125 is a buffer tray configured to load the paper between the inlet roller 108 and the discharge roller 118 installed on the paper conveying path 105 and the inlet roller and the discharge roller. And a paper discharge means 120 for moving the paper loaded in the buffer tray toward the discharge roller at a time, the paper discharge means being slightly on the surface of the buffer tray 126. Protruding idle rollers 128, and the pressure roller 130 to be able to slide and move away from the idle roller is configured to be positioned between the idle roller and the pressure roller to be loaded on the buffer tray Paper processing apparatus, characterized in that. The method of claim 1, And a guide (134) between the inlet roller and the buffer tray for guiding accurate loading of paper in the buffer tray. The method according to claim 1 or 2, The reprocessing means (3) is a paper processing apparatus, characterized in that configured to be any one selected from punching, bookbinding, stapling. delete delete