JPS60148833A - Copying machine - Google Patents

Abstract

PURPOSE:To confirm whether a copy sheet is properly set by disposing a light source and a photo detecting element opposite to each other with a base plate of a tray of a tray interposed therebetween in such a manner that a hole of a punched copy sheet stored in the tray is an optical path. CONSTITUTION:If a punched copy sheet 11 is not properly set in a tray 10, light from a light source 19 is intercepted by the copy sheet 11, so that the light does not reach a photo detecting element 20. In this case, according to an output signal of the photo detecting element 20, a display device is adapted to display that the copy sheet 11 is not set properly. If a punched copy sheet 11 is set properly, light from the light source 19 reaches the photo detecting element 20 through a binder hole 18. In this case, according to an output signal of the photo detecting element 20, the display device is adapted to display that the copy sheet 11 is set properly.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a copying machine, and more particularly to a copying machine using copying paper having binder holes.

[Prior art]

FIG. 1 shows a general copying machine.

In this copying machine, as the photoreceptor drum 1 rotates, a charging corotron 2 uniformly charges the surface of the photoreceptor drum 1, and then the calligraphic information of the original 4 placed on the platen glass 3 is transferred. Light scanning is performed by light irradiation from the light source 5, and the reflected light 6 at this time is incident on the photoreceptor drum 1 through an optical system constituted by reflecting mirrors 7a, 7b, 7c, and 7d, and the surface of the photoreceptor drum 10 is An electrostatic latent image corresponding to the calligraphic information of the original 4 is formed on the image forming apparatus 4. Next, in this copying machine, this electrostatic latent image is made visible by a developing device 8, and the resulting toner image is transferred by a transfer corotron 9 onto copy paper 11 fed from a paper storage tray 10.

Further, in this copying machine, the photoreceptor drum 1 after transfer and the residual toner on the surface of the photoreceptor drum are removed by a static eliminating corotron 12.
After that, the photosensitive drum 1 is electrically neutralized by
The residual toner on the surface is removed by the cleaning device 13, and the surface of the photoreceptor drum 1 is illuminated by the static elimination lamp 14 to completely eliminate the static charge, thereby making it possible to use the photoreceptor drum 1 repeatedly. 2, the surface of the photosensitive drum is charged again. Thereafter, the above operation is repeated. On the other hand, in this copying machine, a copy sheet 11 on which a written image has been transferred from the photosensitive drum 1 is loaded onto a catch tray 16 by a conveying roller 15. In FIG. 1, reference numeral 17 indicates a feed roller that feeds only the uppermost copy sheet of the copy sheets II stored in the paper storage tray 10.

By the way, in such a copying machine, there are cases where a calligraphic image of a document is copied onto copy paper (perforated copying paper 11) on which binder holes are formed in advance.

In that case, place the perforated copy paper 11 into the paper storage tray 10.
It must be set in the correct position. That is, when the horizontal writing original 4 (binding position left) is placed on the platen glass 3 in the manner shown in FIG. 2(a), as is clear from FIG. The image is transferred to the perforated copy paper 11 in the manner shown in FIG. 2(b). Therefore, in this copying machine, when making a copy using the perforated copy paper 11, the copy paper 11 is placed in the storage tray 10 with the binder holes 18 positioned on the right side as shown in FIG. 2(C).
must be set inside. If the perforated copy paper 11 is set with its holes 18 on the left side, when copying the original 4 in the manner shown in FIG. (Left side in FIG. 2(b)).

Therefore, in a copying machine that uses perforated copy paper IJ, it is necessary to visually confirm whether the copy paper 11 is correctly set in the storage tray 10.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a copying machine that can easily check whether or not perforated copy paper is set in the correct orientation, thereby preventing copy paper missetting.

[Structure of the invention]

In order to achieve the above object, the present invention arranges a light source and a light-receiving element to face each other with the bottom plate of the tray in between so that the holes in the perforated copy paper housed in the tray serve as optical paths, and furthermore, the output of the light-receiving element is A display is provided to indicate whether light is being received by the element based on a signal, and it is confirmed from the display contents of the display whether or not the copy paper is properly set in the tray.

[Embodiment] FIGS. 3 and 4 show the main parts of a copying machine according to the present invention. In this printing machine, as shown in FIG. 3, a hole IOb is bored in the bottom plate 10R of the tray 10 that accommodates the copy paper 11, and a frame IOb (not shown) is provided above the hole.
This light source 19 is installed, and the hole 1. A light receiving element 20 is installed on a frame (not shown) below the object, and a display 22 is installed on the operation panel 21, as shown in FIG. The hole 10b of the tray IO is formed at a position that matches the binder hole 18 of the copy paper 11 when the perforated copy paper 1 is set in the opposite direction to the tray 10, and the hole 10b of the above-mentioned light source 19 and The light receiving elements 20 are located on the axis of the hole 10b and are installed so as to face each other.

In this copying machine, when the perforated copy paper 11 is correctly set in the tray 10, the light from the light source 19 is blocked by the copy paper 11, and the light does not reach the light receiving element 20ζ. In this case, the display on the display 22 indicates that the copy paper 11 is correctly set based on the output signal of the light-receiving element 20.
A message such as K is displayed, and the copying machine is ready for operation. Furthermore, as shown in FIG. 3, if the perforated copy paper 11 is not set correctly in the tray 1o of the copying machine,
Light from the light source 19 passes through the binder hole 18 of the copy paper 11 and reaches the light receiving element 20 . In this case, the display 22 displays a message indicating that the copy paper 11 is not correctly centered based on the output signal of the light-receiving element 2o, such as miscent, and at the same time stops the operation of the copying machine. let

Therefore, in this embodiment, when copy paper 11 without binder holes 18 is used, the copy machine is ready for operation because the light from light source 19 is blocked by copy paper 11.

In addition, in the copying machine of the above embodiment, the copy paper 11 is used when the original 4 written horizontally is placed on the platen glass 3.
Although this posture is shown, a vertically written document 4 (binding position cloth) may be set on the platen glass 3. In consideration of such a case, the light source 19 and the light receiving element 20 are also installed on the right side of the tray 10, and a switch 23 for selecting the left and right operating circuits is placed on the operation panel 21.
You can also select and use them for horizontal writing and vertical writing. Further, the light source 19 and the light receiving element 20 are installed so as to be movable to the right side of the tray 10, and driving means for them is installed, and the driving means can be driven by selecting a switch 23 arranged on the operation panel 21. By driving, the light source and the light receiving element can be used for vertical writing.

The copying machine of the above embodiment feeds the copy paper 11 horizontally, but if the copy paper is fed vertically, the light source 19 and the light receiving element 20 are moved to the front or rear side of the tray 10. Needless to say, it can be installed or moved to another department. Further, in the embodiment, the cent condition of the copy paper 11 is displayed by the display 22, but it may of course be displayed by a sound such as a buzzer.

[Effects of the Invention] As explained above, in the present invention, the posture of the perforated copy paper stored in the tray is identified by the presence or absence of light reception by the light-receiving element, and the identified contents are displayed on the display. It is possible to easily check whether perforated copy paper is set correctly and to prevent miscenting.

[Brief explanation of drawings]

Figure 1 is a longitudinal sectional view conceptually showing a conventional copying machine;
Figure (a) is a plan view showing the orientation of the document set;
)) is a plan view showing the state in which the copy paper is transferred from the photoreceptor, FIG. 3 shows a copying machine according to the present invention, FIG. 3 is a conceptual diagram partially showing the main part thereof in cross section, and FIG. 4 is a perspective view of the main part of the copying machine. 10-)-Ray,], Oa bottom plate, 1. Ob-hole,
11 copy paper, 18 hole, 19 light source, 20 light receiving element, 22 display.

Claims (1)

[Claims] When a perforated copy paper formed according to the standard is stored in a tray, a light source and a light receiving element are arranged facing each other at positions corresponding to the holes in the copy paper and sandwiching the copy paper, and further, the above-mentioned A display is provided that displays whether or not light is received by the light receiving element based on an output signal from the light receiving element, and it is confirmed from the display contents of the display whether or not the copy paper is properly set in the tray. A copying machine characterized by: