JPS60238822A - Copying machine - Google Patents

Abstract

PURPOSE:To execute easily both-face copying of an original, and to prevent a setting mistake to improve the workability, by providing not only a usual optical system of the lower side of a platen glass but another optical system on the inside of a cover body, on the upper side, too, and irradiating a photosensitive body. CONSTITUTION:With respect to a main frame 1, the first usual scan unit 4 is provided on the lower side of an original platen, also a cover body 3 which can be opened and closed freely by a hinge is provided, a light source 12 for forming the second scan unit 5, plural mirrors 13, and a lens 14 are provided on its inside, too, and a deflecting mirror 7 is irradiated. The first scan unit 4 is operated by placing the deflecting mirror 7 at the angle of a full line shown in the figure, and subsequently, the second scan unit 5 is operated by turning the mirror 7 in the direction of a dotted line, and both faces of an original G is scanned. A form 16 of a feed paper tray 15 is transferred 7 by a course A and fed to a tray 18, and subsequently, the form 16 is inverted and transferred 7 by a course B. The inversion of the form and the switching of the first and the second scans are synchronized. In such a way, the both face copying is executed efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a copying machine, and particularly to reading a document in a copying machine for double-sided copying.

Conventionally, when making double-sided copies, it was necessary to set the first side on a platen, read the first side using a scanning method, then turn the original over and set the second side on the platen. However, there were disadvantages in that the operation was cumbersome and inefficient.

In addition, there were many cases of defective copies due to mistakes in setting the original.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to improve the efficiency of copying operations and to reduce the occurrence of defective copies due to missetting of originals when performing double-sided copying.

[Structure of the invention]

In order to achieve the above object, the present invention includes a scanning system consisting of a light source and a reso The lid body, which is formed to be freely movable, also has a first
A second scanning system similar to the scanning system of is provided, and is synchronized with the driving of these scanning systems so as to guide the reflected light from the first and second scanning systems onto the photoreceptor drum. It is equipped with a rotatable deflection mirror, and by simply setting the document once on the document table, it sequentially scans the document from below and above, and performs double-sided copying.

〔Example〕

Hereinafter, a copying machine according to an embodiment of the present invention will be described in detail with reference to the drawings.

In this copying machine, as shown in FIG. 1, the lid body 3, also known as a platen cover, which engages with the document table 2 of the main body 1 in an openable and closable manner is enlarged, and the document is read from above within the lid body 3. Add the scanning system and once the original is sent,
This allows the document to be read from both the upper and lower sides in the same state.

That is, as shown in the schematic diagram of the configuration in Figure 2,
A first scanning unit 4 is disposed inside the main body 1 to read the bottom surface, that is, the first side of the document, and a first scanning unit 4 is disposed inside the lid body to read the top surface, that is, the second side of the document. 2 scanning units 5 and a deflection mirror 7 rotatably disposed to guide the reflected light of these scanning unit colors to the correct position on the photoreceptor drum 6. paper feed mechanism 8
Equipped with:

The first scanning unit is a device that is configured to be able to slide on the document surface in exactly the same manner as in the past. It is composed of a first mirror 10 for guiding light to a deflecting mirror 7 and a first condensing lens 11.

Further, the second scanning unit has the same configuration as the first scanning unit, is arranged upside down, and is attached to the lid 3 so as to be able to slide on the second surface of the document. ing. That is, it includes a second light source 12 that illuminates the second surface of the document, a second mirror 13, and a second condenser lens 14.

Further, the deflection mirror 7 is formed to be rotatable so as to guide the reflected light beams from the first scan unit and the second scan unit to the correct position on the photoreceptor drum 6. In conjunction with the start of
The device is configured to perform position setting.

Further, the paper feed mechanism 8 feeds the paper 16 from the paper feed tray 15.
is guided to the transfer unit 17 as shown by arrow A, and the paper 16 on which the first side has been recorded is temporarily stored in the pause tray 18, and then ejected in the opposite direction to the storage direction as shown by arrow B. ,
The paper is guided to the transfer unit 17 again, and after recording on the second side, it is discharged outside the machine.

Next, the operation of this copying machine will be explained.

First, the lid 3 is opened, the document G is placed on the document table 2, and the lid 3 is closed.

Next, when the copy start button ■ is pressed, first the first scanning unit 4 is turned on and slides in the direction of the arrow U IC. At this time, in conjunction with the sliding movement of the first scan unit 4, the deflection mirror 7 is set in the direction shown by the solid line, and the reflected light from the first surface guided by the first scan unit is directed to the photoreceptor drum l. This leads to the formation of an electrostatic latent image.

This electrostatic latent image on the photoreceptor drum 6 is visualized through a developing section (not shown), etc., and is applied to the first side of the paper 16 guided from the paper feed tray 15 at the transfer section 171. is printed.

After this, the paper 16 is once guided to the pause tray 18, and then
The direction is reversed and the sheet is guided to the transfer section 17 again.

On the other hand, when the first scanning unit 4 finishes scanning the first side of the document, the second scanning unit 5 is turned on and starts sliding in the direction of arrow O. At the same time, in conjunction with this, the deflection mirror 7 is set in the direction shown by the dotted line,
a second scan of the document guided by a second scanning unit;
The reflected light from the surface is guided to the photosensitive drum 6 to form an electrostatic latent image.

This electrostatic latent image is similarly made visible, guided to the transfer section, and transferred onto the second side of the paper that has been led back to the transfer section from the pause tray, completing printing on the second side. This paper is then ejected. With this configuration, when a portion of the original is placed, double-sided copying can be performed without moving it, improving the efficiency of copying work and almost eliminating the occurrence of misalignment due to incorrect setting of the original. Become.

Note that depending on the configuration of the paper feeding mechanism, the sliding directions of the first and second scanning units can be changed as appropriate.

〔Effect of the invention〕

As described above, according to the present invention, a second scanning system similar to the first scanning system provided in the main body is used to copy a document placed on the document table from both sides without changing it. When the system is also disposed on the lid body which can be opened and closed, it is linked to the driving start operation of the first and second scanning systems in order to guide the reflected light guided by the first and second scanning systems onto the photoreceptor drum. Since it is equipped with a rotatable deflection mirror that is formed so that the direction can be set, the efficiency of copying work is significantly improved when making double-sided copies, and it also prevents defects caused by missetting the original. The occurrence of copies is reduced.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view of a copying machine according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing the mechanism of the copying machine. 1...Main body, 2...Document stand, 3...Lid, 4...
First scan unit, 5... Second scan unit, 6... Photosensitive drum, 7... Deflection mirror, 8...
...paper feeding mechanism, 9...first light source, 10...first
mirror, 11...first condensing lens, 12...second light source, 13...second mirror, 14...second condensing lens, 15...paper feed tray , 16...Paper, 1
7... Transfer section, 18... Pause tray. Figure 1

Claims (1)

[Claims] A copying machine for double-sided copying, which has a first scanning system disposed within the main body to scan the first side of a document, and a lid body disposed so as to be openable and closable with respect to the document table of the main body. , a second scanning system configured to scan the second side of the document is provided in the lid, and a second scanning system configured to guide reflected light guided by the first scanning system and the second scanning system onto the photoreceptor drum. 1. A copying machine comprising a rotatable polarizing mirror formed so that the direction is set in conjunction with a drive start operation of a scanning system.