Image forming apparatus and developer remaining amount...

Details Image forming apparatus and developer remaining amount... Image forming apparatus and developer remaining amount...

2007-02-28

2009-12-08

Ngo, Hoang (Department: 2852)

Electrophotography

Diagnostics

Consumable

Reexamination Certificate

active

07630655

ABSTRACT:
An image forming apparatus, which uses a developing device including: a developer carrying member developing an electrostatic latent image formed on an electrophotographic photosensitive member with a developer; a developer containing portion containing the developer; an agitating member provided rotatably in the developer containing portion to agitate the developer; and a developer remaining amount detecting member outputting a signal for detecting the remaining amount of the developer contained in the developer containing portion, the image forming apparatus including a main body controller to which the signal is input, and which detects the remaining amount of the developer, the main body controller detecting the remaining amount of the developer in the developer containing portion based on the amount of change per a unit revolution number of the agitating member in the band of fluctuation in the signal in association with the rotation of the agitating member.

REFERENCES:
patent: 5946522 (1999-08-01), Inami
patent: 6226464 (2001-05-01), Suwa et al.
patent: 6591070 (2003-07-01), Shoji et al.
patent: 2007/0206966 (2007-09-01), Komiyama et al.
patent: 7-325473 (1995-12-01), None
patent: 9-190067 (1997-07-01), None
patent: 2001-242690 (2001-09-01), None
patent: 2005-309145 (2005-11-01), None
Japanese Office Action mailed Jun. 17, 2008 in Application No. 2007-044762, with English-language translation.
Machine translation of JP2005-309145 A., Date: Nov. 4, 2005.

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