JPH0772684A - Automatic document feeder provided with illumination - Google Patents

Abstract

PURPOSE:To improve the visibility and the operability of an operation part by providing the end part of an automatic document feeder with an illumination means illuminating the operation part of an image forming device. CONSTITUTION:An image forming system is constituted of the image forming device 1, the automatic document feeder 2 installed in the device 1, the operation part 3 setting and actuating the image forming system and a lamp 4 arranged at a position where the operation part 3 accompanying the feeder 2 is illuminated and installed in the feeder 2. Then, power is not supplied to the lamp 4 when the feeder 2 is opened but supplied to the lamp 4 only when it is closed so as to illuminate the operation part 3. In such a case, it is good that the lamp 4 is turned off from on the time when the open state of the feeder 2 is detected by an opening and closing detection sensor 5 or the time when data in the course of the action time of the image forming device 1 is received by a communication means from the device 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic document feeder for placing an original on a platen glass, which is attached to an image forming apparatus.

[0002]

2. Description of the Related Art Conventionally, no automatic document feeder attached to an image forming apparatus has an illumination means.

[0003]

With the downsizing of the image forming apparatus and the attachment of the automatic document feeder, the edge of the automatic document feeder approaches the operating portion, so that the illuminance on the operating portion decreases and the visual confirmation is made. There was a drawback that affected the operability and operability.

[0004]

According to the present invention, an automatic document feeder is provided by providing illumination means at the end of the automatic document feeder to illuminate the operating portion of the image forming apparatus. This not only prevents the visibility and operability of the operating portion from being lowered, but also improves the visibility.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a view best showing the features of the present invention, in which 1 is an image forming apparatus, 2 is an automatic document feeder attached to the image forming apparatus, and 3 is the setting and operation of the image forming system. An operation unit 4 for performing the above is a lamp arranged at a position for illuminating the above-mentioned operation unit associated with the automatic document feeder and installed in the automatic document feeder.

(Other Embodiments) FIGS. 2 and 3 show an embodiment of the present invention in detail.

FIG. 2 shows an open / closed state of the automatic document feeder 2 shown in FIG. 1 and a micro switch 5 for detecting the opened / closed state. In FIG. 2, the solid line indicates the open / close state of the automatic document feeder, and at this time, the micro switch 5 is in the closed state. Further, the dotted line shows the open state, and at this time, the micro switch 5 is in the open state.

FIG. 3 shows a connection circuit of the lamp 4 and the micro switch 5 described above. When the automatic document feeder 2 is in the open state, the lamp is not energized, and only in the closed state, the lamp is energized and the operating portion 3 is operated. Can be illuminated.

FIG. 4 is a block diagram of a control system in the image forming apparatus and the automatic document feeder.

In FIG. 4, the image forming apparatus 1 mainly comprises a central processing unit (CPU) for performing arithmetic control, a read-only memory (ROM) storing control procedures, and a random access memory (RAM) which is a main storage device. Then, the control data necessary for mutual control is exchanged with the automatic document feeder 2 through the communication IC, and the drive system, the sensor system, and the operation unit 3 are controlled and managed based on the control program.

Similarly, the automatic document feeder 2 also has a read-only memory (ROM) and a random access memory (RA).
M) is built in a central processing unit (CPU) and controls and manages the drive system and the sensor system based on a control program. Also, control data is exchanged with the image forming apparatus 1 through the communication IC.

With this configuration, for example, in the automatic document feeder 2, when the open / close detection sensor 5 detects the open state of the automatic document feeder, or when the image forming apparatus 1 operates the image forming apparatus by the communication means. When the internal data is received, the lamp 4 can be changed from a lighting state to a non-lighting state.

[0013]

As described above, the illuminating means is provided at the end of the automatic document feeder attached to the image forming apparatus so as to illuminate the operating section of the image forming apparatus. It is possible to improve the sex.

Further, unnecessary illumination can be reduced by turning off the illumination when the automatic document feeder is in the open state or when the image forming apparatus is in the copying operation.

[Brief description of drawings]

FIG. 1 is a perspective view of a copying machine embodying the present invention.

FIG. 2 is a side view of the system shown in FIG. The solid line indicates the closed state of the automatic document feeder, and the dotted line indicates the open state.

3 is a diagram showing a connection state of a lamp 4 and an open / close detection switch (sensor) 5 in FIG.

FIG. 4 is a diagram showing the configurations of an image forming apparatus 1 and an automatic document feeder 2.

[Explanation of symbols]

 1 image forming apparatus 2 automatic document feeder 3 operation section of image forming apparatus 4 lamp 5 open / close detection switch (sensor)

Claims (4)

[Claims] 1. An automatic document feeder attached to an image forming apparatus, comprising an illuminating means for illuminating an operating portion of the image forming apparatus. 2. The automatic document feeder according to claim 1, wherein the illuminating means is operated in association with the opening / closing state of the automatic document illuminating device. 3. The automatic document feeder according to claim 1, further comprising a detection unit for detecting an operation state of the image forming apparatus, wherein the illumination unit is operated according to an output of the detection unit. 4. An image forming apparatus provided with the automatic document feeder of any one of claims 1 to 3.