- Patent Title: Image forming apparatus with improved design to prevent erroneous detection and method for preventing erroneous detection of abnormality in image forming apparatus
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Application No.: US17003015Application Date: 2020-08-26
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Publication No.: US11429054B2Publication Date: 2022-08-30
- Inventor: Yuusuke Yamamoto
- Applicant: Yuusuke Yamamoto
- Applicant Address: JP Kanagawa
- Assignee: Yuusuke Yamamoto
- Current Assignee: Yuusuke Yamamoto
- Current Assignee Address: JP Kanagawa
- Agency: IPUSA, PLLC
- Priority: JPJP2019-198955 20191031
- Main IPC: G03G15/00
- IPC: G03G15/00 ; H02H9/02
Abstract:
An image forming apparatus includes an image bearer; a first power supply configured to generate a first voltage applied to the image bearer according to a first voltage control signal; a second power supply configured to generate a second voltage, which has a polarity opposite to a polarity of the first voltage, applied to the image bearer according to a second voltage control signal; and circuitry. The circuitry is configured to generate the first voltage control signal and the second voltage control signal, detect an overcurrent in the image forming apparatus as an abnormality; and set a mask period for masking detection of the abnormality in response to an input of the second voltage control signal after an input of the first voltage control signal.
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