Invention Grant
US08446597B2 Image forming apparatus, image forming method, and computer program product including a secondary-transfer control unit that transfers a single-color image onto the intermediate transfer medium
失效
图像形成装置,图像形成方法和计算机程序产品,包括将单色图像传送到中间转印介质上的二次转印控制单元
- Patent Title: Image forming apparatus, image forming method, and computer program product including a secondary-transfer control unit that transfers a single-color image onto the intermediate transfer medium
- Patent Title (中): 图像形成装置,图像形成方法和计算机程序产品,包括将单色图像传送到中间转印介质上的二次转印控制单元
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Application No.: US12787678Application Date: 2010-05-26
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Publication No.: US08446597B2Publication Date: 2013-05-21
- Inventor: Takashi Enami , Takahiro Kamekura , Nobuyuki Kobayashi , Shigeyuki Ishii , Jun Kosako , Natsuko Kawase , Takahiro Miyakawa , Miyo Taniguchi
- Applicant: Takashi Enami , Takahiro Kamekura , Nobuyuki Kobayashi , Shigeyuki Ishii , Jun Kosako , Natsuko Kawase , Takahiro Miyakawa , 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: JP2009-126758 20090526; JP2010-101114 20100426
- Main IPC: G06K15/00
- IPC: G06K15/00

Abstract:
An image forming apparatus includes a direct-transfer control unit that causes a direct-transfer medium and a first image forming unit that forms a single-color image to transfer the single-color image onto either the direct-transfer medium or a transfer sheet; an indirect-transfer control unit that causes an intermediate transfer medium and a second image forming unit that forms a multi-color image to transfer the multi-color image onto the intermediate transfer medium; a secondary-transfer control unit that transfers the single-color image onto the intermediate transfer medium; a sensor that detects an image on the intermediate transfer medium; and a positional-alignment control unit that calculates, using the sensor, an amount of misalignment of the image and corrects, using a position of an image formed by the first image forming unit as a reference position, positions of images to be formed by the second image forming unit based on the calculated amount of misalignment.
Public/Granted literature
- US20100302569A1 IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND COMPUTER PROGRAM PRODUCT Public/Granted day:2010-12-02
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