JPS60168163A - Electrophotographic copying machine - Google Patents

Abstract

PURPOSE:To enhance efficiency of filing operation by installing an automatic perforating device on the paper ejection side of the main body of a copying machine, and executing copying and perforation of a paper at the same time. CONSTITUTION:A perforator 9 is installed between a fixing device 7 and paper ejecting rollers 8, and it consists of a vertically movable guide 14 capable of selectively intruding into a route 12 for conveying a paper 11 having a toner image fixed with a fixing device 7, a perforating punch 15 capable of intruding in the route 12 in cooperation with the guide 14, and a sensor 16 for detecting the conveyance of the paper 11, each located on the ejection side of a paper conveyor belt 14 for forming the route 11. The guide 14 has a stopper piece 17 for engaging with the end of the paper 11 and stopping the motion of the paper 11, and a punch receiving stand 18, and the punch 15 is movable with a solenoid 19 connected with the sensor 16, and it is allowed to intrude to the paper 11 on the stand 18 of the guide 14 by the excitation of the solenoid 19 to punch the paper 11.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electrophotographic copying machine that exposes a document using an imaging optical system, and develops, transfers and fixes the latent image.
It is characterized by being equipped with an automatic perforation device on the paper discharge side.

[Prior art]

In the recent information-oriented industry, the selection, collection, and management of information has become important. 2 For this reason, it is often done to file the copied paper. In this case, conventionally, after copying, holes are punched in the paper and filed, or copies are made on sheets that have been punched in advance, and then filed.

Therefore, especially when filing a large number of documents, a great deal of time and effort is required, resulting in low work efficiency.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and its purpose is to simultaneously perform copying and punching of paper by providing an automatic punching device on the paper discharge side of the main body of the copying machine. An object of the present invention is to provide an electrophotographic copying machine that is characterized by being able to streamline file operations.

[Structure of the invention]

That is, the gist of the present invention is that in an electrophotographic copying machine that exposes a document using an imaging optical system, and develops, transfers, and fixes the latent image, a sheet of paper with the transferred image fused by a fixing device is used. a vertically movable guide that can selectively appear and retract toward the paper conveyance path on the discharge side of the conveyance means;
The guide includes a perforation punch that protrudes toward the paper conveyance path in cooperation with the guide, and a detection means for detecting conveyance of the paper, and in this case, the guide has a perforation pedestal and The punch relates to an electrophotographic copying machine characterized in that the punch is operated by a transmission signal from the detection means to punch a hole in a sheet.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic sectional view showing the main parts of a copying machine according to the present invention. In the figure, (1) is a copying machine main body;
) A photosensitive drum (2) is disposed below an image forming optical system (not shown) in the center of the tram (2), and a developing device (3) is disposed near the tram (2). (
On the discharge side of 2), a fixing device (7) consisting of a fixing roll (5) and a pressure roll (6) is connected via a conveyor belt (4).
is installed. A punching device (9) is provided between the fixing device (7) and the paper discharge roll (8).

Note that (10) is a tray that stores the paper (11) discharged from the paper discharge roll (8).

As shown in FIGS. 2 and 8, the punching device (9) is configured to punch a paper (11) onto which a transferred image is fused by a fixing device (7).
On the output side of the paper feed belt (13), which is the conveyance means constituting the conveyance path 02), the conveyance path (121
A vertically movable kite that can selectively appear inside (14)
and this guide Q4], and a perforation punch (15) that plunges toward the conveyance path (121), and a sensor (16) that is a detection means for detecting the conveyance of the paper (11). In this case, the guide circle has a stopper piece (171) that engages with the leading edge of the paper (11) to stop the movement of the paper (11), and a perforation pedestal (18), and The perforation punch (15) is movable forward and backward by a solenoid (19), and when the solenoid (19) electrically connected to the sensor (16) is energized, the perforation punch (15) is guided. The paper (11) is perforated by plunging toward the paper (1) on the perforation holder (18) of the board (14).

Here, the reason why the perforation device (9) is installed on the ejection side of the fixing device (7) is that before fixing, the toner adhering to the paper (1υ) is unstable, so the perforation causes the image to deteriorate. In the case of continuous copying, the subsequent paper (111) collides with the preceding paper (11), causing problems with perforation. Toner adhesion is stabilized, and
This is because the preceding paper (11) can be reliably punched within the time required for the fixing operation in the fixing device (7).

In the copying machine of the present invention configured as described above, when punching a copied sheet, when a punching operation button (not shown) is operated, a guide (1) is inserted as shown in FIG.
4) enters the conveyance path (12), the fixing device (
7), the paper (11) to which the transferred image is fused is temporarily stopped by the stopper piece (17) of the guide circle.

At this time, the sensor (16) detects the presence of the paper (111), transmits the detection signal to the solenoid (19), and the punch (15) is activated by the excitation operation of the solenoid (I9).
enters the conveyance path (12) and perforates the paper (11) on the perforation pedestal (18) of the guide (14). After the drilling is done, the solenoid (19) demagnetizes the drilling punch (
15) returns to its original position, and the guide (141
is retracted to a non-use position, and the paper (11) is placed on the output roll (8).
) onto the tray (10).

In addition, if no drilling is performed, as shown in Figure 2,
If the kite (14) and punch (15) are kept in standby at the unused position, the fixing device (
7), the paper (11) is transferred to the paper conveyor belt (
13) and discharge roll (8) onto the tray (10).

Therefore, automatic perforation of paper (11) can be selectively performed by operating the perforation operation button as necessary.

〔Effect of the invention〕

As described above, according to the copying machine of the present invention, there is provided a vertically movable guide on the paper discharge side of the copying machine main body that can selectively appear and retract toward the paper transport path, and a guide that cooperates with the guide. It is equipped with a perforation punch that plunges into the paper conveyance path and a detection means that detects the conveyance of the paper, and can perforate the fixed paper as necessary, making it possible to copy and perforate the paper. The value of its use is remarkable, as it has excellent effects such as being able to simultaneously perform file work, streamlining file work, and promoting information collection and information management. It is.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing the main parts of the copying machine of the present invention, and FIG.
Figures 3 and 3 are cross-sectional views showing the drilling device according to the present invention when it is not in use and when it is in use, respectively. Explanation of symbols (1)...Copying machine body (7)...Fixing device (9)...Punching device (11)...
・Paper (work 2)... Conveyance path (13)...Paper conveyance belt (conveyance means) circle・
...Guide 05) ...Drilling punch (1
6)...Sensor (detection means) +17)...
...Stopper piece (181...Drilling pedestal (
19) Solenoid patent applicant Fuji Xerox Co., Ltd. Agent Toshihiro Tsuchinaka Patent attorney Katsuo Naruse

Claims (1)

[Claims] In an electrophotographic copying machine that exposes a document using an imaging optical system, and develops, transfers, and fixes the latent image, on the discharge side of a conveyance means that conveys a sheet with a transferred image fused by a fixing device,
A vertically movable guide that can selectively appear and retract toward the paper conveyance path, a perforation punch that works in conjunction with the guide and plunges toward the paper conveyance path, and a detection means that detects the conveyance of the paper. An electrophotographic copying machine, wherein the guide has a perforation pedestal, and the perforation punch is actuated by a transmission signal from the detection means to perforate the paper.