Image forming apparatus including means for detecting amount of

Details Image forming apparatus including means for detecting amount of Image forming apparatus including means for detecting amount of

1990-10-04

1993-03-30

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118653, 355208, 355251, G03G 2100

Patent

active

051988607

ABSTRACT:
The present invention provides an image forming apparatus in which the first lead wire which transmits a detection signal indicating the remaining amount of toner in the developing unit into a circuit for comparison with the reference voltage, and the second lead wire are arranged parallel. One end of the second lead wire is connected to the reference voltage generating side and the other end is electrically open.

REFERENCES:
patent: 4395476 (1983-07-01), Kanbe et al.
patent: 4786869 (1988-11-01), Kanai et al.
patent: 4972230 (1990-11-01), Wayman

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