Invention Grant
- Patent Title: Image reading apparatus
- Patent Title (中): 图像读取装置
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Application No.: US12187804Application Date: 2008-08-07
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Publication No.: US08477391B2Publication Date: 2013-07-02
- Inventor: Masaya Shimmachi , Haruo Ishizuka , Kuniaki Sato
- Applicant: Masaya Shimmachi , Haruo Ishizuka , Kuniaki Sato
- 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: JP2007-209195 20070810
- Main IPC: H04N1/04
- IPC: H04N1/04 ; H04N1/21 ; H04N1/00 ; G06K15/00 ; G06M7/00 ; G03G15/00

Abstract:
An image reading apparatus includes a document reading and conveying unit, a pressing plate capable of moving to a position to press a document against a reading surface and to a position withdrawn from the reading surface, and a fixed reader configured to read a document fixed on the reading surface by moving a close-coupled image sensor relative to the document. The document reading and conveying unit includes a controller configured to perform pickup initialization of returning a pickup roller to an initial position after the completion of conveying one or more documents and is supported by the pressure plate. The controller includes a first timer configured to measure an elapsed time from the completion of reading performed by the fixed reader. The controller performs the pickup initialization after a measurement value measured by the first timer exceeds a first time.
Public/Granted literature
- US20090040572A1 IMAGE READING APPARATUS Public/Granted day:2009-02-12
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