Invention Grant
- Patent Title: Image forming apparatus
- Patent Title (中): 图像形成装置
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Application No.: US12641026Application Date: 2009-12-17
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Publication No.: US07751106B2Publication Date: 2010-07-06
- Inventor: Takashi Fujimori , Kenji Kuroki , Hiroyuki Eda
- Applicant: Takashi Fujimori , Kenji Kuroki , Hiroyuki Eda
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. I.P. Division
- Priority: JP2006-114314 20060418
- Main IPC: G02B26/08
- IPC: G02B26/08 ; G03G15/00
Abstract:
An image forming apparatus that previously rotates a polygonal mirror drive motor before starting a job and forms a latent image by using an optical scanning unit including the polygonal mirror drive motor is provided. The image forming apparatus includes a control unit configured to perform control such that, in the determination of the presence or absence of each of color toners before a previous rotation is started, if it is determined that any one of the color toners is absent, only the polygonal mirror drive motor corresponding to a black toner is previously rotated.
Public/Granted literature
- US20100092193A1 METHOD FOR CONTROLLING IMAGE FORMING APPARATUS Public/Granted day:2010-04-15
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