| 摘要 |
A fixing device includes a fixing member, a heating member to heat the fixing member, a pressing member to press against the fixing member with a predetermined pressure, forming a nip where an image is fixed on a recording medium with heat and pressure, a heating controller to cause the heating member to heat the fixing member to a predetermined temperature set in advance and to preheat the fixing member while maintaining the temperature of the fixing member, a recording-medium data receiver to acquire recording-medium data before a fixing process is started, and a preheating-time adjuster to adjust a preheating time during which the heating member preheats the fixing member based on the data acquired by the recording-medium data receiver.
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