Image forming apparatus

Details Image forming apparatus Image forming apparatus

2005-10-04

2005-10-04

Brase, Sandra L. (Department: 2852)

Electrophotography

Control of electrophotography process

Control of fixing

C399S053000

Reexamination Certificate

active

06952540

ABSTRACT:
In an image forming apparatus, a first sequence group operates after input of a print signal and a second sequence group is started up at timing when a temperature T of a fixing device has reached a certain temperature T1after the input of the print signal or timing for which a temperature rising curve is calculated from a time for the temperature T to reach a certain temperature T2from the temperature T1during temperature rising of the fixing device. With this image forming apparatus, it becomes possible to reduce unnecessary operations of a developing device and a photosensitive drum and extend a usable life of the developing device even if image formation and temperature rising of the fixing device are performed in parallel.

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patent: 51-109739 (1975-01-01), None
patent: 62-116960 (1987-05-01), None

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