JPS60118856A - Electronic copying machine - Google Patents

Abstract

PURPOSE:To improve operability and to prevent decrease in working efficiency without the need for changing the position of a hole by matching the position of holes in a copying machine body and performing copying even if specific paper such as punched paper having directivity is set to the copying machine body. CONSTITUTION:Position detectors 13 for holes 10a of paper 10 are provided on both sides of a paper tray 9. Each detector 13 consists of two pairs of light emitting elements 13a provided above the tray 9 and photodetecting elements 13b which are installed below the tray 9 and detect the light from the elements 13a past the holes 10a and the through-holes 9a in the bottom. The positions of the holes 10a of the specific paper 10 set on the tray 9 are detected by the detectors 13. A mechanism 14 for upsetting the next paper is selectively used by the signals for the hole position from these detectors 13. The specific paper in a containing part 14d is thereafter delivered to a conveying path 12 by rolls 14b, 14c and arrives at a photodetector 7 and the toner image is transferred. Generation of a mis-copy is thus obviated even if there is the hole 10a in either of the right or left direction of the tray 9.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an electronic copying machine for copying onto directional paper such as perforated paper (hereinafter referred to as specific paper).

Prior Art When copying onto specific directional paper such as perforated paper using a copying machine that uses the conventional method of copying from the last page to the first page of a manuscript (NtOI method), one-sided copying of the paper is required. For double-sided copying, it is necessary to reverse the position of the holes on a particular sheet of paper each time, making it easy for operational errors to occur.

Purpose of the Invention The present invention has been made for the purpose of improving the above-mentioned problems, and provides an electronic copying machine that can make single-sided and double-sided copies regardless of the direction in which the holes are set. The aim is to prevent this from happening.

Structure of the Invention A detector is provided near the paper tray to detect the position of holes in a specific paper such as perforated paper set arbitrarily in the paper tray, and the position signal detected by this detector is used to detect the position of the paper tray and photosensitive paper. An electronic copying machine that aligns the holes in the paper to predetermined positions by operating and inactivating a paper reversing mechanism provided in the middle of a conveyance path that connects the paper.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to Fig. 1. In Fig. 1, l is a main body of a copying machine, which has a platen 3 on top of which a document 2 to be copied is placed; An automatic document feeder 4 is installed on this platen 3. The automatic document feeder 4 sequentially transports the documents 2 stored in the document storage section 5 with the last page facing down onto the platen 3, and stacks the copied documents 2 on top of the top document 2.
Although the 10,000-type document feeder 4'f is not used, the document 2 may be manually set onto the platen 3 from the last page to perform copying. An optical system 6 is provided below the platen 3 to expose and scan the original 2f on the platen 3 while moving along the platen 3, and the optical system 6 directs light reflected from the original 2 onto a photoreceptor 7. An electrostatic latent image is formed on the photoreceptor 7, and this electrostatic latent image is transferred to the developing device 8.
It was developed into an L-Katona image.

The image is transferred onto a sheet of paper 1o fed from a paper tray 9. The paper tray 9 accommodates specific papers 10 such as perforated papers in a stacked state, and is carried out to the transport path 12 by a paper feed roll I+ provided above the paper tray 9, 91 sheets at a time from the top. In addition, holes 10α for specific paper 10 are provided on both sides of paper tray 9.
A detector 13 is provided to detect the position of. The detector 13 includes two pairs of light emitting elements 13α provided above the paper tray 9, a hole 1oα of the S specific paper 1o provided below the paper tray 9, and a through hole 9α provided at the bottom of the paper tray 9. These detectors 13 detect the position of the hole 10α in the specific paper 10 set on the paper tray 9. The next paper reversing mechanism 14 is selected and used based on the hole position signals from these detectors 13.

The paper reversing mechanism 14 has three reversing rolls 14α#1.
46. 14C and storage unit +4 ((j) configured to accommodate paper, and operates when the detector 13 provided on the left side of the paper tray 9 detects the position of the hole IOα of the specific paper 10. The paper 10 is reversed as follows. That is, the specific paper 1 sent to the conveyance path 12 by the paper feed roll II
0 is o-/I/ 14cL, 14b of the paper reversing mechanism 14
Then, it is taken into the L-shaped housing part 14d and turned over.

After that, the specific paper 10 in the storage section tag is rolled into a roll 14b,
14C, the force is sent to the rainbow conveyance path 12 and reaches the photoreceptor 7.

The toner image is transferred.

Further, when the detector 13 provided on the right side of the paper tray 9 detects the hole 10α of the specific paper 10, the paper reversing mechanism 14
becomes inactive, and the specific paper 10 sent to the conveyance path 12 reaches the photoreceptor 7 without passing through the paper reversing mechanism 14.
The toner image is transferred. The specific paper IO on which the toner image has been transferred has the toner image fixed thereon by a fixing device 15 installed behind the photoconductor 7, and is then discharged to a paper discharge tray 17 via a discharge roll 16.

As a result, even if the hole 10α is located on either the right side or the left side of the paper tray 9, copy errors will not occur.

The above is the operation when copying on one side of the specific paper 10, but when copying on both sides, the following operation is performed.

In other words, for double-sided copying, hole 1 is placed on the right side of paper tray 9.
When the specific paper 10 is set so that 0α is placed, the paper reversing mechanism 14 operates.

If it is set to the left side, it is inactive. In either case, a toner image is first transferred to one side of the specific paper 1o that has reached the photoconductor 7, and after this toner image is fixed by the fixing device 15, it is transferred to a conveyance path provided behind the fixing device 15. It is accommodated in the double-sided copying tray 17 by the switching guide 1g. When the scheduled number of single-sided copies are completed.

The specified paper 1° stored in the double-sided copying tray 19 is conveyed from the bottom through the double-sided copying conveyance path 2o to the conveyance path 12 in front of the transfer device 21, and is transferred again to the side opposite to the side on which it has already been copied. It is done. After the transfer has been completed, the specific paper IQ is fixed in the fixing device 15 and then discharged to the paper output tray 17 via a stack I6.

Note that all of the above operations are performed when the document 2 is set in the normal state on the planar/3, and at this time, the position of the hole +04 of the specific paper 10 is usually on the right side.

Effects of the Invention As described in detail above, the present invention enables the printing of specific directional paper such as perforated paper, even if it is arbitrarily set in the main body of the copying machine.
Since copies are made by aligning the hole positions within the copier main body, there is no need to change the hole positions each time one single-sided or double-sided copying is performed. As a result, operability is improved, and problems such as wasted paper or decreased work efficiency due to operational errors can be eliminated.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a schematic diagram of the overall configuration, and FIG. 2 being an enlarged sectional view of the vicinity of the paper tray. 2 is the original, 9 is the paper tray, 10 is the specific paper, 10α is the hole, and 12 is the transport path.

Claims (1)

[Claims] A means for copying a plurality of original documents 2 and a paper tray 9
A means for detecting the position of the hole of the specific mt+o set in the paper tray 9 and the photoreceptor 7 is provided in the middle of the conveyance path 12, and the specific paper 10 is detected by the position signal from the detection means. An electronic copying machine comprising means for inverting a specific sheet 10 so as to align the directions of the holes 10α.