Toner density control device in an electrophotographic copying a

Details Toner density control device in an electrophotographic copying a Toner density control device in an electrophotographic copying a

1987-08-27

1988-07-19

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3DD, 118691, G03G 1508

Patent

active

047588616

ABSTRACT:
A toner density control device comprising a toner density sensor to detect the density of the toner contained in the developer stored in a developing device, toner agitating means to agitate the developer stored in the developing device so as to charge the toner with frictional electricity, control standard value holding means which maintains as the control standard value the toner density that is lower by a specified value than that detected by the toner density sensor under a condition where the developer is agitated for some time by the toner agitating means during the initial stage after the developer is supplied into the developing device, and toner replenishment means which actuates under a condition when the toner density detected by the toner density sensor is lower than the control standard value, thereby controlling the toner density in the developing device in accordance with the control standard value maintained in a manner as stated above.

REFERENCES:
patent: 4451135 (1984-05-01), Okumura
patent: 4462680 (1984-07-01), Ikeda
patent: 4536080 (1985-08-01), Hauser et al.
patent: 4550998 (1985-11-01), Nishikawa
patent: 4592642 (1986-06-01), Imaizumi et al.
patent: 4592645 (1986-06-01), Kanai et al.

Affiliated with

Also associated with

Rating

Toner density control device in an electrophotographic copying a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Toner density control device in an electrophotographic copying a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toner density control device in an electrophotographic copying a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-600223