Electrophotography – Control of electrophotography process – Of plural processes
Reexamination Certificate
2005-02-01
2005-02-01
Grainger, Quana (Department: 2852)
Electrophotography
Control of electrophotography process
Of plural processes
C399S074000
Reexamination Certificate
active
06850718
ABSTRACT:
An image forming apparatus of the present invention includes an image carrier on which a developer is to be deposited by an electrophotographic system. A controller controls the amount of the developer to deposit on the image carrier by varying a potential for development. A reflection type sensor for sensing the amount of the developer deposited on the image carrier is made up of a light source and a light-sensitive device for. An adjusting device adjusts a set value set in the controller for controlling the amount of the developer to a target value. The sensor is of a diffuse reflection system and has a correcting function. The adjusting device causes the sensor to sense the amount of the developer deposited on a test patch, which is formed on the basis of a preselected set value, and then calculates an adjustment value of the set value on the basis of the amount sensed by the sensor and the target value.
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Grainger Quana
Ricoh & Company, Ltd.
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