Apparatus for detecting the amount of remaining developer

Details Apparatus for detecting the amount of remaining developer Apparatus for detecting the amount of remaining developer

1995-01-24

1996-10-22

Brase, Sandra L.

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355204, 355208, G03G 2100

Patent

active

055682332

ABSTRACT:
A developer remain amount detecting apparatus includes a detector for detecting a remain amount of a developer within a developer container, a first memory in which a reference value for a comparison with a detection signal from the detector is prememorized, a second memory for memorizing the reference value read from said first memory, input unit for inputting a value for modifying the reference value memorized in the second memory unit, modifying unit for modifying the reference value memorized in the second memory unit based on the value input by the input unit, and judgement unit for judging whether the developer is present by comparing the reference value memorized in the second memory with the detection signal from the detector.

REFERENCES:
patent: 5216469 (1993-06-01), Yamada
patent: 5218409 (1993-06-01), Tanaka et al.
patent: 5317369 (1994-05-01), Nakanishi
patent: 5387965 (1995-02-01), Hasegawa et al.

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