Invention Grant
- Patent Title: Image forming apparatus
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Application No.: US17811996Application Date: 2022-07-12
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Publication No.: US11650529B2Publication Date: 2023-05-16
- Inventor: Tomoya Tanaka , Taisuke Ishikawa
- Applicant: Tomoya Tanaka , Taisuke Ishikawa
- Applicant Address: JP Kanagawa
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: IPUSA, PLLC
- Priority: JP 2021119450 2021.07.20
- Main IPC: G03G15/00
- IPC: G03G15/00 ; G03G21/20

Abstract:
An image forming apparatus includes an image forming device, a driving device, an external temperature detector, an internal temperature detector, a work amount detector, and control circuitry. When a temperature detected by the external temperature detector is lower than a temperature threshold, the circuitry shifts to a first restriction state based on a work amount and temporarily stops drive of the image forming device for a period every time the amount reaches a threshold. When the temperature is not lower than the temperature threshold, the circuitry shifts to a second restriction state based on an internal temperature. In the second state, in a case where the internal temperature is higher than a first threshold, the circuitry performs an intermittent operation of repeating a pause state and a printing state, until the internal temperature falls to be equal to or lower than a second threshold being lower than the first threshold.
Public/Granted literature
- US20230029299A1 IMAGE FORMING APPARATUS Public/Granted day:2023-01-26
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