Image forming apparatus

Details Image forming apparatus Image forming apparatus

2008-03-12

2010-06-08

Gray, David M (Department: 2852)

Electrophotography

Control of electrophotography process

Control of developing

C399S027000, C399S049000, C399S063000, C399S253000

Reexamination Certificate

active

07734206

ABSTRACT:
An image forming apparatus including an exposure device, a development device, an image density detection device, a supply device for supplying a toner to the development device, a cleaning device for cleaning the surface of an image bearing member, a driving torque detection device for detecting a driving torque of the image bearing member, and a controller which drives the image bearing member while providing a predetermined electric potential difference between a region charged in the image bearing member and a developer support in case of non-image formation conducts a driving torque detecting operation with respect to the image bearing member by means of the driving torque detection device, and changes a reference value in response to the value of the driving torque detected.

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patent: 2006-119380 (2006-05-01), None

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