JPH0876652A - Image forming device - Google Patents

Abstract

PURPOSE: To provide an image forming device capable of unfailingly and easily erasing error information. CONSTITUTION: In the case of turning on a power source again after an error is made, the error information kept in a storage means 4 is displayed on a seven-segment display unit on an operation part 2. After the error information is confirmed, it is erased by simultaneously pressing plural specified keys of the operation part 2, for example, START, C and AE keys.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as a copying machine which erases error information by using an operating section.

[0002]

2. Description of the Related Art In a conventional copying machine, when the error detecting means detects an error such as a paper jam, the CPU sends the error information to the storing means, and when the storing means stores the error information, the control means shuts off the power supply. . After that, when the power is turned on, the CPU reads the error information from the storage means. At this time, if a plurality of errors have occurred, the error having a higher priority is displayed on the display means. Further, in order to prevent the operator from erasing the error information, a reset key has been conventionally provided in a place that the operator cannot touch. Alternatively, in a large copying machine having a numeric keypad, the error information is erased by entering the service mode by operating the numeric keypad. In addition, regarding the error information being displayed using 7 segments, only one error can be displayed, and resetting resets all error information.

[0003]

However, in the case where the display means has 7 segments or the like, when a plurality of errors occur at the same time in the above-mentioned prior art, since only one error information can be displayed on the display means, the error information When the information is erased, the error information that is not displayed is also erased. Therefore, it is impossible to obtain the information of the error that is not displayed. Further, in the case of a copying machine having a reset key inside the main body of the machine so that the operator cannot easily touch it, there is a problem that the main body must be disassembled to erase error information.

The present invention has been made to solve such a problem, and an object of the present invention is to provide an image forming apparatus capable of easily and without error erasing error information.

[0005]

In order to achieve the above-mentioned object, the present invention makes it possible to erase error information by inputting by simultaneously operating a plurality of specific keys on an operating section, and to individually output error information. All error information can be grasped by deleting.

More specifically, the present invention configures an image forming apparatus as described in (1), (2) and (3) below.

(1) An operation unit having a plurality of keys for setting image forming conditions and the like, and a display means for displaying the image forming conditions, an error detecting means for detecting an error, and stored information even when the power is turned off. Storage means for holding and performing predetermined setting by detecting operation of the key, storing information detected by the error detecting means in the storage means, and storing in the storage means when power is turned on again An image forming apparatus comprising: control means for displaying the held error information on the display means, wherein the control means detects the simultaneous operation of a plurality of specific keys in the operation unit and erases the error information. An image forming apparatus for performing.

(2) The control means displays the error information on the display means according to the priority order thereof, and detects the simultaneous operation of a plurality of specific keys on the operation unit to erase the error information being displayed on the display means. The image forming apparatus according to (1) above.

(3) The control means detects the simultaneous operation of a plurality of specific keys on the operation unit, and deletes specific error information corresponding to the combination of the specific plurality of keys on a one-to-one basis. The image forming apparatus according to (1) above.

[0010]

With the configurations (1), (2), and (3) described above, when the power is turned on again, the error information held in the storage means is displayed, and a plurality of specific keys in the operation unit are displayed. The error information is erased by the simultaneous operation. Further, in the configuration of (2), the error information is displayed according to the priority order and erased in that order. In the configuration of (3), the specific information corresponding to a specific combination of a plurality of keys is deleted one-on-one.

[0011]

EXAMPLES The present invention will be described in detail below with reference to examples. FIG. 1 is a block diagram showing the configuration of the essential parts of a "copying machine" which is an embodiment. In FIG. 1, 1 is a CPU (control means), 2 is an operation unit, 3 is an error detection means such as a thermistor or a photo interrupter, 4 is a storage means for holding stored information even when the power is turned off, 5 is a motor or solenoid, etc. Is a driving means.

FIG. 2 shows a processing procedure of the CPU 1 from the detection of an error to the shutoff in this embodiment.

When the error detecting means 3 detects an error,
The error information is sent to the CPU 1. The CPU 1 sends this error information to the storage means and issues a power shutoff command to the drive means 5. The storage means 4 stores the sent error information (S1). The drive means 5 receives a shut-off command from the CPU 1 and shuts off the power (S
2).

FIG. 3 shows the CP after the power is turned on again.
It is a flowchart regarding the error processing of U1.

After that, when the power is turned on, the CPU 1 reads the error information from the storage means 4 (S3). When a plurality of errors occur at the same time, a command is issued to the operation unit 2 to display the information of the error with the higher priority.
The operation unit 2 displays the type of error using 7 segments (S4). At this time, copy start in the operation unit 2,
By pressing the copy start key, the number of copies, and the AE key at the same time among the four types of keys of the number of copies, AE, and clear, an input is made to erase the error information. When the CPU 1 detects an input from the operation unit 2 and recognizes that the input is to erase the displayed error information (S5), it issues a command to erase the error information corresponding to the storage unit 4. . The storage means 4 receives the instruction from the CPU 1 and erases the error information (S6). The CPU 1 issues a command to the operation unit to display the error information having the next highest priority. All error information can be erased by repeating this procedure. Further, the combination of key inputs for erasing error information in the operation unit 2 is not limited to the above-mentioned combination of the copy start, the number of copies, and the AE key, and an appropriate combination of a plurality of keys can be used.

Further, it is also possible to combine the specific plurality of keys with specific error information in a one-to-one correspondence so as to erase the error information.

[0017]

As described above, according to the present invention,
Since the error information can be erased by simultaneously operating a plurality of specific keys on the operation unit, the error information can be easily erased.
Further, by deleting the error information stepwise, it is possible to easily recognize what kind of error has occurred, and it is possible to simplify the display means for displaying the error information.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of an embodiment.

FIG. 2 is a flowchart showing the operation from error occurrence to power shutoff.

FIG. 3 is a flow chart showing the operation from power-on again to erasing error information.

[Explanation of symbols]

 1 CPU (control means) 2 Operation part 3 Error detection means 4 Storage means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuo Nimura 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (3)

[Claims] 1. An operation unit having a plurality of keys for setting image forming conditions and the like, and a display unit for displaying the image forming conditions, an error detecting unit for detecting an error, and a stored information stored even when the power is turned off. And a storage unit for detecting the operation of the key to perform a predetermined setting, storing the information detected by the error detection unit in the storage unit, and storing the information in the storage unit when the power is turned on again. An image forming apparatus comprising: a control unit for displaying the error information that has been displayed on the display unit, wherein the control unit detects simultaneous operation of a plurality of specific keys on the operation unit to delete the error information. An image forming apparatus characterized by being performed. 2. The control means displays the error information on the display means in accordance with the priority order thereof, and detects the simultaneous operation of a plurality of specific keys on the operation unit to erase the error information being displayed on the display means. The image forming apparatus according to claim 1, wherein the image forming apparatus is a device. 3. The control means detects the simultaneous operation of a plurality of specific keys on the operation unit and deletes specific error information corresponding to the combination of the specific plurality of keys on a one-to-one basis. The image forming apparatus according to claim 1, wherein the image forming apparatus is an image forming apparatus.