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Image forming device

An image and display device technology, applied in the direction of image communication, electrical components, etc.

Inactive Publication Date: 2007-05-23
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In addition, even if the time period from turning on the power of the image forming apparatus to turning it off is the same, the number of sheets used differs depending on the user or the date, so it is necessary to make a safety margin by lowering the setting of the total number of sheets used. greater degree

Method used

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Examples

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no. 1 example

[0088] A first embodiment of the present invention will be explained using flowcharts.

[0089] FIG. 2 is a flowchart showing the processing of a program started when a predetermined abnormality is detected.

[0090] Each predetermined exception has the possibility that it is caused by the memory error in question. Such exceptions include, for example, access range violation errors, overflow errors, and division by zero errors. It is to be noted that a definition of "predetermined exception" (such as a paper jam error, which generally takes a long time to eliminate the cause) can be added to perform error checking on the memory. Reference characters in parentheses indicate step identifications in the figures.

[0091] (S0) An abnormality is displayed on the control panel 12. If the display size of the control panel 12 is not large enough to display the entire message, only the error code is displayed.

[0092] (S1) If the check completion flag "Fc" is equal to "0", the pro...

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PUM

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Abstract

The present invention provided an image forming apparatus with memory properly error-checked. The whole area of volatile memories is equally divided into 16 memory blocks which are separated into 4 groups each having 4 memory blocks located away from each other. Every one of the 4 groups is selected for error-checking on memory at a power-on and is shifted sequentially. An image for selecting a plurality of error-checking types on memory is displayed on a control panel, and error-checking on memory is performed according to a user's selection. In another embodiment, instead of at a power-on, a memory check is performed as a preprocessing of a power-off, and the result of the check is stored in a non-volatile memory to display it at the next power-on. The error-checking on memory may be performed if the number of power-on times is equal to a set time, if an abnormality has occurred, or if the present time is equal to a set time.

Description

technical field [0001] The present invention relates to an image forming apparatus that forms an image on paper, such as a printer, copier, facsimile, or multifunction peripheral, and more particularly to an image forming apparatus equipped with an error-checked memory device. Background technique [0002] The image forming apparatus starts up its system after checking all the bits of its memory to confirm that the state of the memory is normal. [0003] On the other hand, since the resolution of the formed image becomes higher and its colors become more and more, and the price of the memory becomes lower and lower, the capacity of the memory in the image forming apparatus becomes larger and larger. big. [0004] Therefore, error checking of the memory at power-on takes several minutes, which makes the user feel uncomfortable. [0005] At the same time, the reliability of the memory is improved due to the progress of the manufacturing technology and the inspection technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/00H04N1/21
Inventor 黑木朗彦
Owner KYOCERA DOCUMENT SOLUTIONS INC
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