Invention Grant
US08194266B2 Positional error detection method and apparatus, and computer-readable storage medium
有权
位置误差检测方法和装置，以及计算机可读存储介质
- Patent Title: Positional error detection method and apparatus, and computer-readable storage medium
- Patent Title (中): 位置误差检测方法和装置，以及计算机可读存储介质
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Application No.: US12333621Application Date: 2008-12-12
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Publication No.: US08194266B2Publication Date: 2012-06-05
- Inventor: Tatsuya Miyadera , Kenji Asuwa , Izumi Kinoshita , Hiroaki Ikeda , Tatsuya Ozaki , Yasuo Matsuyama , Hirokazu Iwata
- Applicant: Tatsuya Miyadera , Kenji Asuwa , Izumi Kinoshita , Hiroaki Ikeda , Tatsuya Ozaki , Yasuo Matsuyama , Hirokazu Iwata
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: IPUSA, PLLC
- Priority: JP2007-327773 20071219; JP2008-289134 20081111
- Main IPC: G06F3/12
- IPC: G06F3/12 ; G06K15/00
Abstract:
A positional error detection method forms, on a belt which is transported in a transport direction, positional error detection marks for detecting a positional error between image positions of first and second colors, detects the positional error detection marks on the belt, and computes the positional error based on the detected positional error detection marks. The positional error detection marks include first and second marks which are inclined in mutually opposite directions with respect to the transport direction, and third marks which are perpendicular to the transport direction.
Public/Granted literature
- US20090161142A1 Positional Error Detection Method and Apparatus, and Computer-Readable Storage Medium Public/Granted day:2009-06-25
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