Invention Grant
US08311464B2 Image forming apparatus, image forming method, and computer program product
失效
图像形成装置,图像形成方法和计算机程序产品
- Patent Title: Image forming apparatus, image forming method, and computer program product
- Patent Title (中): 图像形成装置,图像形成方法和计算机程序产品
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Application No.: US12829963Application Date: 2010-07-02
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Publication No.: US08311464B2Publication Date: 2012-11-13
- Inventor: Natsuko Kawase , Nobuyuki Kobayashi , Shigeyuki Ishii , Jun Kosako , Takahiro Kamekura , Takahiro Miyakawa , Takashi Enami , Miyo Taniguchi
- Applicant: Natsuko Kawase , Nobuyuki Kobayashi , Shigeyuki Ishii , Jun Kosako , Takahiro Kamekura , Takahiro Miyakawa , Takashi Enami , Miyo Taniguchi
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-168504 20090717
- Main IPC: G03G15/01
- IPC: G03G15/01 ; G03G15/20 ; G03G15/16 ; G03G15/00

Abstract:
An image forming apparatus includes a direct transfer control unit that controls a direct transfer unit and a first image forming unit so as to directly transfer an image onto a transfer sheet, an indirect transfer control unit that controls an intermediate transfer unit and a second image forming unit so as to transfer images onto the intermediate transfer unit, a secondary transfer control unit that controls contact/separation between the direct transfer unit and the intermediate transfer unit, a first alignment control unit that corrects an amount of misalignment among the images formed on the intermediate transfer unit, thereby performing a first alignment control process, and a second alignment control unit that corrects an amount of misalignment of an image directly transferred onto the transfer sheet with respect to the image on which the first alignment control process has been performed, thereby performing a second alignment control process.
Public/Granted literature
- US20110013949A1 IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND COMPUTER PROGRAM PRODUCT Public/Granted day:2011-01-20
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