Electrophotography – Control of electrophotography process – Of plural processes
Patent
1996-01-11
1997-05-13
Lee, Shuk Yin
Electrophotography
Control of electrophotography process
Of plural processes
G03G 2100
Patent
active
056301952
ABSTRACT:
In an image forming apparatus, a toner density sensor has a light emitting element from emitting light toward a toner pattern image formed on an image carrier, and a light receiving element for receiving the resulting reflection from the image. The light emitting element and light receiving element each has a directivity. The optical axes of the light emitting element and light receiving element intersect each other at a point exiting on or in the vicinity of the surface of the image carrier. The light emitting and light receiving elements are positioned such that a plane containing their optical axes is inclined a predetermined angle relative to a normal extending from the surface of the image carrier through the above point.
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Fujimori Kouta
Sawayama Noboru
Lee Shuk Yin
Ricoh & Company, Ltd.
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