Toner cartridge with an external reflector for a developer appar

Details Toner cartridge with an external reflector for a developer appar Toner cartridge with an external reflector for a developer appar

1996-10-18

1999-05-04

Brase, Sandra

Electrophotography

Control of electrophotography process

Control of developing

399 62, G03G 1510

Patent

active

058995978

ABSTRACT:
A method and a system for optically detecting an empty condition in a toner cartridge has a light reflector placed on an outside surface of a toner cartridge wall. A light source emits light directly or ultimately towards the light reflector and the reflected light is detected by a light detection device if the toner cartridge is sufficiently empty.

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