Invention Grant
US08036552B2 Method for correcting registration errors by superimposing a black developer on a background of a color
有权
通过将黑色显影剂叠加在颜色的背景上来校正配准误差的方法
- Patent Title: Method for correcting registration errors by superimposing a black developer on a background of a color
- Patent Title (中): 通过将黑色显影剂叠加在颜色的背景上来校正配准误差的方法
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Application No.: US12233971Application Date: 2008-09-19
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Publication No.: US08036552B2Publication Date: 2011-10-11
- Inventor: Tomohiro Hashimoto
- Applicant: Tomohiro Hashimoto
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA Inc. IP Division
- Priority: JP2007-245538 20070921; JP2008-225813 20080903
- Main IPC: G03G15/00
- IPC: G03G15/00
Abstract:
A color image forming apparatus causes a light emitting unit to emit light to a superimposed pattern in which a black developer (Bk) is superimposed on a color developer (Y, M, C) as a background color, detects diffuse reflected light by a light receiving unit, calculates positional deviation among the colors using the black developer (Bk) as a reference color based on a detection result, and adjusts an image forming condition.
Public/Granted literature
- US20090080915A1 COLOR IMAGE FORMING APPARATUS AND COLOR MISREGISTRATION CORRECTION METHOD THEREFOR Public/Granted day:2009-03-26
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