Device for detecting the toner in the developing unit of an elec

Details Device for detecting the toner in the developing unit of an elec Device for detecting the toner in the developing unit of an elec

1997-09-10

1999-08-03

Royer, William

Electrophotography

Diagnostics

Consumable

118694, G03G 1508

Patent

active

059336781

ABSTRACT:
Disclosed is a versatile office machine, e.g. a laser printer, a facsimile machine, or an electronic copier, which includes a scanner for scanning a document, a developing unit for developing the scanned image of the document with a toner and a detector for detecting the toner in the developing unit. The device for detecting the toner can be constructed using a light emitting element mounted in the scanner to generate the light that is transmitted to the photoreceptor.

REFERENCES:
patent: 5036358 (1991-07-01), Yoshida
patent: 5499077 (1996-03-01), Endo et al.
patent: 5521684 (1996-05-01), Takahashi
patent: 5587770 (1996-12-01), Jo et al.
patent: 5589918 (1996-12-01), Oshida et al.
patent: 5621221 (1997-04-01), Shinohara et al.
patent: 5649264 (1997-07-01), Domon et al.
patent: 5655175 (1997-08-01), Oshida

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