Invention Grant
- Patent Title: Image forming method and image forming apparatus
- Patent Title (中): 图像形成方法和图像形成装置
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Application No.: US12071661Application Date: 2008-02-25
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Publication No.: US07936368B2Publication Date: 2011-05-03
- Inventor: Kozo Yamazaki
- Applicant: Kozo Yamazaki
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2007-056749 20070307
- Main IPC: B41J2/435
- IPC: B41J2/435 ; B41J2/47
Abstract:
Positioning displacement characteristics of each of scanning beams are obtained in advance. The positioning displacement characteristics is indicative of a relation between temperature and a displacement amount by which each of the scanning beams is displaced in a sub-scanning direction. A displacement control is performed based on the positioning displacement characteristics by shifting the positioning displacement characteristics in a direction opposite to that of a trend of the positioning displacement characteristics within a pixel pitch.
Public/Granted literature
- US20080218580A1 Image forming method and image forming apparatus Public/Granted day:2008-09-11
Information query
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