Image forming device and cartridge with developer detection

Details Image forming device and cartridge with developer detection Image forming device and cartridge with developer detection

2005-10-27

2009-02-24

Chen, Sophia S (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S111000

Reexamination Certificate

active

07496301

ABSTRACT:
An image-forming device has a developer-accommodating section and a residual toner detecting unit. The developer-accommodating section accommodates a developer. The developer-accommodating section defines a plurality of detection light transmitting points through which a detection light is transmitted to detect an amount of developer accommodated in the developer-accommodating section. The residual toner detecting unit has a light-emitting unit that irradiates a detection light through one of the detection light transmitting points and a light-receiving unit that receives the detection light that has passed through the subject one detection light transmitting point.

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(EP 05 02 3561) European Search Report dated Jan. 30, 2006.

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