JPS6281673A - Copying machine - Google Patents

Abstract

PURPOSE:To make it possible to copy data etc. which is not written in an original using simple constitution by mounting a display unit having a display section and quickening paper feeding at the time of a display section copy mode and at the same time irradiating light of an optical unit for exposure onto the display section. CONSTITUTION:When the flange part 33 of a display unit 25 is inserted into a slide groove 27, a shutter 28 is moved in the display unit 25 in the direction of arrow mark (b) and the unit 25 is set, and at the same time, a switch 34 is made on by the shutter 28. In the state of an of the switch 34, that is, a copy mode of a data display section, timing of paper feeding of transfer paper is made quicker, and the data display section is copied. When the unit 25 is pulled out from the groove 27, the shutter 28 is moved in the direction of arrow mark a by spring force, and an opening 26 is closed and the switch 34 is made off. Thus, the mode is changed to ordinary copy mode.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a copying machine capable of copying images, such as a date, which are not present in the original document but are relatively useful when copying, onto paper together with the original document. > In general, copying machines do not have a function to copy dates and other indications that are not on the original document, and the date and other information must be written on the transfer paper after copying, which is inconvenient. Although there have been proposals for displaying the date, etc., this is a special configuration that uses a light source separate from the exposure optical unit, and is not practical.

<Object of the Invention> The object of the present invention was made in view of the above circumstances, and is to provide a copying machine that has a simple configuration and can copy dates, etc. that are not present on the original.

<Structure and effects of the invention> The present invention is summarized as follows.

A display device having a display section for displaying date, etc. is removably attached to the front end side of the document table in the copying direction.

When the display section is in copy mode, the paper feed is accelerated and the light from the exposure optical unit is irradiated onto the display section.

With this configuration, according to the present invention, 1. A display device having a display section for displaying dates, etc. that is not included in the original is prepared, and when the display section is in copy mode, the light from the exposure optical unit is used, so the structure is not complicated. Dates, etc. can be automatically copied without causing any changes.

<Embodiment> FIG. 1 is a schematic side view of a copying machine which is an embodiment of the present invention.

In the figure, a document cover 3 is placed on the document table 2 of the copying machine main body 1.
is set. Inside the copying machine body 1, there is an exposure lamp 4.
an optical unit having5. 1st゜2nd. 3rd and 4th
Mirror 6, 7. 8. 9. A lens 10, a photoreceptor drum 1), and the like are arranged. Photosensitive drum 1
) is surrounded by a developer tank 13 . connected to the toner box 12 . Transfer charger 14. Peeling charger 15. Peeling claw 16. Cleaner unit 17, static elimination lamp 18. A main charger 19, an eraser lamp 20, etc. are arranged. A paper feed roller 22 for feeding transfer paper from a paper cassette 21 is provided on the right side of the photoreceptor drum 1), and a suction roller 23, a fixing roller 24, etc. are provided from the bottom to the left side of the photoreceptor drum 1). There is. A display device 25 is removably attached to the front end position of the document table 2 in the copying direction, and has a display that is not present on the document, such as a date display section 25a (FIG. 2). When the copying operation is turned on to receive light from the main charger 19, the surface of the photosensitive drum 1) is charged to, for example, -650V.

When the date display section 25a is in the copy mode, the exposure lamp 4 of the optical unit 5 is turned on early so as to illuminate the date display section 25a of the display device 25 before the document is illuminated. Therefore, the date of the date display section 25a is formed as an electrostatic latent image on the surface of the photoreceptor drum 1). Thereafter, the original on the original platen 2 is irradiated by the optical unit 5, and an electrostatic latent image is formed on the photoreceptor drum 1). Next, developer tank 1
While the latent image is developed with the toner of step 3 and an image is formed,
The transfer paper is fed early in order to transfer the image on the date display section 25a, and after the image on the photoreceptor drum 1) is transferred by the transfer charger 14, the transfer paper is transferred to the photoreceptor drum 1) by the peeling charger 15. It is peeled off from the drum 1). The peeled transfer paper is sent to a fixing roller 24 by a suction 23 and then discharged. The residual toner on the surface of the photosensitive drum 1) is scraped off and collected by the blade of the cleaner unit 17. The residual charge on the photoreceptor drum 1) is erased by a static elimination lamp 18.

The date display 25a of the display device 25 is constructed of a mechanical type having a black number string on the background as shown in FIG. It can be corrected manually.

The mounting structure of the display device 25a will be explained with reference to FIGS. 3 and 4.

The opening 26 at one end of the document cover 3 is openably and closably closed by a shutter 28 that is movable along a slide groove 27, and there is a space between the shutter 28 and a cover 29 that covers the air above the shutter 28 in the closing direction. A spring 30 is hung to apply a spring force in the direction of arrow a. 31.32 spring 3
These are hook pieces that lock both ends of the 0. The display device 25 has a flange portion 3 that fits into the slide groove 27.
3 is formed so that the shutter 28 can be driven to open by the display device 25. 34 is a switch that is turned on when the shutter 28 is in the open position, detects the mounting state of the display device 25 via the shutter 28, and transmits the detected state to the control circuit in the copying machine main body 1.

When the control circuit detects this condition, it sends a transfer paper fast-forward signal during the copy cycle.

That is, in the above configuration, when the flange portion 33 of the display device 25 is inserted into the slide groove 27, the shutter 28 of the display device 25 moves in the direction of the arrow □ against the spring force.
The display device 25 is set at a position opposite the opening 26, and the switch 34 is turned on by the shutter 28. When the switch 34 is turned on, that is, the date display section 25
In the coffee mode a, the feeding timing of the transfer paper is advanced and the date display section 25a is copied as described above.

When the display device 25 is pulled out from the slide groove 26, the shutter 28 moves in the direction of arrow a by the spring force and closes the opening 2.
6 is closed, and the switch 34 is turned off. This will result in normal copy mode.

The display device 25 uses an LED or liquid crystal to display the display unit 25.
In addition, the display section 25a may be constructed of a rubber stamp in which the number string can be changed in order to reduce costs.

It goes without saying that the content displayed on the display section 25a is not limited to the date, but pages, other messages, etc. can be selected and used as appropriate.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of a copying machine which is an embodiment of the present invention;
FIG. 2 is a plan view showing an example of the display section of the display device of the copying machine. FIG. 3 is a plan view of the copying machine with the display device installed, and FIG. 4 is a perspective view of the main parts showing the mounting structure of the display device. 1-copying machine main body, 2-document table, 5-exposure optical unit, 25-display device, 25a-display section, 34-switch.

Claims (1)

[Claims] (1) It has a display section that is not present on the original set on the original platen, and is located on the front end side of the original platen in the copying direction, and is removably attached to the main body of the copying machine, and is used to expose the original before the original. A display device that illuminates the display section in the unit, and a signal provided in the copying machine body that changes the display section copy mode from the normal copy mode to advance the feeding timing of transfer paper when the display device is detected to be attached. A copying machine equipped with a switch that sends out .