Image forming apparatus

Details Image forming apparatus Image forming apparatus

1992-03-13

1993-10-19

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355245, 355259, 355262, 118647, 118648, 118651, 118661, G03G 1506

Patent

active

052550591

ABSTRACT:
An image forming apparatus having a developing device which includes a developing roller. A developer or a toner is transported on and along the developing roller without the roller being rotated. The developing roller has a shaft and ultrasonic transport members provided on the shaft. The ultrasonic transport members are made up of a plurality of electrodes, a piezoelectric member surrounding the electrodes and made of, for example, piezoelectric ceramic, and an elastic member surrounding the piezoelectric member and made of, for example, copper alloy or similar alloy. A plurality of standing waves are caused to flow through the electrodes with the result that the piezoelectric member waves. The toner is transported on the waving surface of the elastic member.

REFERENCES:
patent: 4273069 (1981-06-01), Huggins et al.
patent: 4794878 (1989-01-01), Connors et al.

Affiliated with

Also associated with

Rating

Image forming apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1355782