Image forming apparatus and device for determining the...

Details Image forming apparatus and device for determining the... Image forming apparatus and device for determining the...

2007-02-20

2007-02-20

Grainger, Quana (Department: 2852)

Electrophotography

Control of electrophotography process

Of plural processes

Reexamination Certificate

active

10813076

ABSTRACT:
A detection device used in an image forming apparatus, comprises a light-emitting element which emits light towards a toner pattern formed on an image carrier, a first light-receiving element which detects the light reflected from the toner pattern and a second light-receiving element which detects the light reflected from the toner pattern in a fashion different from the first light-receiving element. The detection device calculates the amount of toner of the toner pattern based on the output values from the first and second light-receiving elements as well as the position of the toner pattern based on the output value from the first light-receiving element.

REFERENCES:
patent: 4796065 (1989-01-01), Kanbayashi
patent: 6633734 (2003-10-01), Maebashi et al.
patent: 2003/0049039 (2003-03-01), Suzuki
patent: 2003/0214568 (2003-11-01), Nishikawa et al.
patent: 2000-206761 (2000-07-01), None
patent: 2002-310901 (2002-10-01), None

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