Invention Grant
- Patent Title: Image forming apparatus that reduces conveyance failure of sheet based on motor torque variation
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Application No.: US15847018Application Date: 2017-12-19
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Publication No.: US10591861B2Publication Date: 2020-03-17
- Inventor: Daijiro Ueno
- Applicant: KYOCERA Document Solutions Inc.
- Applicant Address: JP Osaka
- Assignee: KYOCERA Document Solutions Inc.
- Current Assignee: KYOCERA Document Solutions Inc.
- Current Assignee Address: JP Osaka
- Agency: Stein IP, LLC
- Priority: JP2016-255190 20161228
- Main IPC: G03G15/00
- IPC: G03G15/00 ; B65H7/20 ; G03G21/14

Abstract:
An image forming apparatus includes at least one conveyance roller pair, an image forming unit, at least one brushless motor, a motor drive control unit, a delay amount detector, and an image formation control unit. The image formation control unit controls the motor drive control unit to convey the sheets at a predetermined timing toward the image forming unit. The image formation control unit, during a continuous image formation in which a plurality of sheets are continuously conveyed by the conveyance roller pair with a predetermined sheet spacing and images are sequentially formed on the respective sheets, controls the motor drive control unit to sequentially perform an on and off control of the brushless motor corresponding to the respective sheets, and adjusts the sheet spacing and a rise time in the on control of the brushless motor corresponding to the rotation delay amount detected by the delay amount detector.
Public/Granted literature
- US20180181046A1 IMAGE FORMING APPARATUS THAT REDUCES CONVEYANCE FAILURE OF SHEET BASED ON MOTOR TORQUE VARIATION Public/Granted day:2018-06-28
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