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Image forming apparatus, image forming method

An image and color image technology, applied in the field of storage media for storing the computer program, can solve the problems of not considering the width of the pattern, consuming toner, etc., and achieve the effect of suppressing the consumption of toner

Inactive Publication Date: 2010-06-02
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a certain amount of toner is always consumed because the toner marking pattern is drawn
Therefore, in "JP-A-2006-664632", in order to suppress the consumption of toner, the size of the V-shaped pattern (dimension in the direction of line extension) is changed, but the width of the pattern is not considered.

Method used

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  • Image forming apparatus, image forming method
  • Image forming apparatus, image forming method
  • Image forming apparatus, image forming method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example 」

[0050] image 3 is a flowchart showing the processing procedure of the first embodiment. In this embodiment, the figure 2 The width of the pattern shown. This control is performed by the system control unit 1 .

[0051] exist image 3 In this method, after the process is started (step 101), it is first judged whether the chromatic aberration correction has succeeded for a certain number of times (step 102). If the continuous success (step 102-Yes), from next time, then form the width of the toner mark pattern that will be used for correction to be set as the toner pattern (step 103) thinner than the initial value, then store is reduced The pattern width of is used as a set value from next time (step 104), and the process ends. In this way, if the next chromatic aberration correction control succeeds a certain number of times in succession, a finer pattern will be formed.

[0052] On the other hand, even if the color difference correction in step 102 fails only once (ste...

no. 2 example 」

[0058] Figure 4 is a flowchart showing the processing procedure of the second embodiment. In this embodiment, when the data for correction is obtained for color difference correction, if the color difference correction control of the pattern width in the sub-scanning direction with a certain set width fails for a certain set number of times, the pattern width will be set. The lower limit width of the width of the toner mark pattern used for chromatic aberration correction, after that, no toner mark pattern below the lower limit width will be drawn.

[0059] In other words, in Figure 4 Among them, after the correction process starts (step 111), the set pattern width is set to L, if the color difference correction control performed with the pattern width L fails (step 112-No), then the failure of the pattern width L performed The number of times is accumulated (step 113), if the number of times of failure is greater than or equal to the set number of times (step 114), then t...

no. 3 example 」

[0062] Figure 5 is a flowchart showing the processing procedure of the third embodiment. In this embodiment, when the data for correction is obtained for color difference correction, if the color difference correction control fails more than a certain set ratio, the pattern width is used as the lower limit width of the toner mark pattern width for color difference correction , after that, the toner mark pattern below the lower limit width will not be drawn.

[0063] In other words, in Figure 5 Among them, after the correction process starts (step 121), the set pattern width is set to L, and if the color difference correction control performed with the pattern width L fails (step 122-No), then after setting n times or more After the rectification, calculate the failure ratio (step 123) carried out with pattern width L, if the ratio of failure is greater than or equal to the ratio of setting (step 124), then pattern width L is made as lower limit (step 125), Thereafter, cor...

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Abstract

The invention relates to an image forming method, which detects carbon powder mark pattern for colour difference emendation to emend colour difference and overlaps pattern with plural colours to formcoloured pattern. The method comprises steps: at first, performing discrimination about whether the colour difference emendation has been continuously succeeded for certain times; if continuously succeeded, forming a carbon powder pattern for setting the width of emended carbon powder mark pattern to be thinner than an initial value from the beginning of next time; then storing the width of thinned pattern as the setting value to be used next time; then ending the treatment. As a result, if the colour different emendation control of next time has succeeded for certain times, much thinner pattern is formed. On the other hand, even if the colour difference emendation only fails once, the pattern width is set to be the one that is thicker than the initial value; and the emendation is carriedout again to thicken the pattern width gradually until it succeeds.

Description

technical field [0001] The present invention relates to an image forming apparatus of a copying machine, a printer, a facsimile machine, etc., and in particular, relates to an image forming apparatus applicable to a tandem color image forming apparatus having transfer tapes of various colors, a laser driver, and a photoreceptor An apparatus, an image forming method, a computer program for executing the image forming method on a computer, and a storage medium storing the computer program. Background technique [0002] In general, a so-called tandem color image forming apparatus that temporarily transfers an image onto a transfer tape using a plurality of photoreceptors to form a color image is widely known. In such a color image forming apparatus, a toner mark pattern is drawn on a transfer tape, and then color difference correction processing, toner density detection, and the like are performed. As such examples, for example, the inventions disclosed in Japanese Patent Docu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/00G03G15/01
Inventor 高根俊章
Owner RICOH KK