Electrophotography – Control of electrophotography process – Responsive to number of copies or passage of time
Reexamination Certificate
2005-11-29
2005-11-29
Brase, Sandra L. (Department: 2852)
Electrophotography
Control of electrophotography process
Responsive to number of copies or passage of time
C399S025000
Reexamination Certificate
active
06970659
ABSTRACT:
An image forming apparatus is equipped with a process cartridge detachable therefrom, where the process cartridge includes an element relating to image formation. A drive time of the process cartridge driven in the image forming apparatus is counted and it is judged whether an accumulation of the drive time counted reaches a predetermined value. When it is judged that the accumulation of the drive time reaches a predetermined value, an image forming condition of the image forming apparatus is changed over at a timing when the image forming apparatus does not conduct image formation.
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Brase Sandra L.
Canon Kabushiki Kaisha
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