Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2007-07-10
2007-07-10
Brase, Sandra L. (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
C399S066000
Reexamination Certificate
active
11149540
ABSTRACT:
An image forming apparatus features a toner removing unit which forms a cleaning electric field to remove toner adhering to a transfer member. The cleaning electric field electrostatically moves the toner adhering to the transfer member to an image bearing member while the transfer member is in contact with an inter-image area, wherein, a time when the toner removing unit forms the cleaning electric field is T1in the case where the detection toner image is formed prior to the formation of the cleaning electric field in the inter-image area with which the transfer member is in contact, and a time when the toner removing unit forms the cleaning electric field is T2in the case where the detection toner image is not formed in the inter-image area with which the transfer member is in contact, where T1is longer than T2.
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Ikeda Yuichi
Takeuchi Yasushi
Tomine Jun
Brase Sandra L.
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
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