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Image forming control method and image forming device

A control method and image technology, which are applied in measurement devices, image communication, electrical recording technology using charge patterns, etc., can solve the problems of difficult toner pollution, increased maintenance costs, complex structures, etc. Effect

Inactive Publication Date: 2004-03-03
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that the structure becomes complicated because the sliding mechanism of the calibration plate is installed
There is also a problem that it is difficult to avoid contamination of the toner due to long-term use in the image forming apparatus, which causes an increase in maintenance cost

Method used

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  • Image forming control method and image forming device
  • Image forming control method and image forming device
  • Image forming control method and image forming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] figure 1 is a schematic front sectional view showing the structure of a digital color copier as an image forming apparatus according to an embodiment of the present invention.

[0048] On the upper part on the copier body 1, a document table 111 and an operation panel are provided. An image reader 110 and an image forming section 210 are provided in the copier body 1 .

[0049] On the upper surface of the document table 111 is mounted a reverse automatic document feeder (RADF) 112 which is supported so as to have a predetermined positional relationship with the document table 111 and to be opened and closed.

[0050] The reverse automatic document feeder 112 conveys the document so that the front side of the document is opposed to the image reader 110 at a predetermined position of the document table 111 . After finishing reading the image on the front side of the document, the reverse automatic document feeder 112 reverses and conveys the document so that the other s...

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PUM

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Abstract

Before replacement of constituent parts of an image density sensor or of other image forming units, the image density of a formed test toner patch image is detected by the image density sensor and conditions for image formation are controlled. After replacement of the constituent parts, the image density sensor detects the image density of a test toner patch image which is formed based on the controlled conditions for image formation. The optical output and / or the optical sensitivity is adjusted so that a detected value becomes a predetermined reference value, to calibrate the image density sensor. With this image formation controlling method, the image density sensor can be calibrated easily and precisely, the image density of a toner pattern image can be held proper and a stable high-quality image can be obtained.

Description

technical field [0001] The present invention relates to an image formation control method comprising the steps of: calibrating (adjusting) an image density sensor for detecting the image density of a toner pattern image of each color formed in a A photoconductor, an intermediate transfer member or a transfer member of an image forming apparatus of a copier or a printer. The present invention also relates to an image forming apparatus for performing an image formation control method. Background technique [0002] Since the photoelectric type image forming apparatus forms images using electrostatic force, its characteristics may change in response to the conditions of each process unit used and surrounding conditions. Changes in characteristics may result in changes in the density of formed images and deterioration in image quality. In order to avoid such a situation and adjust the image quality so as to continuously obtain superior image quality, an image formation control ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/47G01N9/00G03G15/00G03G15/01G03G15/08G03G21/00H04N1/23H04N1/29H04N1/60
CPCG03G15/0131G03G2221/1603G03G15/01G03G2215/0164G03G15/0194G03G2215/00059H04N1/6033G03G15/5058
Inventor 北川高志嵩下佳织井野利昭山中隆幸木户荣一
Owner SHARP KK