Invention Grant
US09075369B2 Image forming apparatus and image forming method based on variation of motor rotation speed
有权
基于电机转速变化的图像形成装置和图像形成方法
- Patent Title: Image forming apparatus and image forming method based on variation of motor rotation speed
- Patent Title (中): 基于电机转速变化的图像形成装置和图像形成方法
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Application No.: US13914914Application Date: 2013-06-11
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Publication No.: US09075369B2Publication Date: 2015-07-07
- Inventor: Takayuki Fukutani , Yuuji Takayama , Tomoyuki Saiki , Tae Matsumoto , Yuichi Ogawa
- Applicant: CANON KABUSHIKI KAISHA
- 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: JP2009-155308 20090630; JP2010-125245 20100531
- Main IPC: G03G15/00
- IPC: G03G15/00 ; H02P6/00 ; G03G15/01 ; G03G15/16
Abstract:
An apparatus includes an image formation unit including a photosensitive drum and a motor for driving the image formation unit. The apparatus acquires a frequency generator signal, which is phase information output from the motor as the motor rotates. In addition, the apparatus corrects unevenness of the density that may occur due to the rotation of the motor according to the acquired phase information.
Public/Granted literature
- US20130272728A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD Public/Granted day:2013-10-17
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