FIXING DEVICE
PROBLEM TO BE SOLVED: To reduce thermal damage due to a delay of a heater shut-off operation in occurrence of a thermal runaway to a heater while a fixing member etc., as a mechanical operation member is not driven in a film heating type fixing device. SOLUTION: A heater shut-off temperature te1 whe...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To reduce thermal damage due to a delay of a heater shut-off operation in occurrence of a thermal runaway to a heater while a fixing member etc., as a mechanical operation member is not driven in a film heating type fixing device. SOLUTION: A heater shut-off temperature te1 when a motor M is driven is set higher than a control target temperature t2 in fixation processing and a heater shut-off temperature te2 when the motor is not driven is set lower than a heater shut-off temperature te2 when driven. COPYRIGHT: (C)2010,JPO&INPIT |
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