Electrophotography – Image formation – Development
Patent
1999-02-04
2000-03-07
Chen, Sophia S.
Electrophotography
Image formation
Development
399285, G03G 1508
Patent
active
060351713
ABSTRACT:
The object of the invention is to certainly remove and certainly recover the charged toner remaining on a developing roller after development. A single component toner which is delivered to the developing roller via a toner-supplying roller is made into a relatively thin layer of a predetermined thickness with a charging plate and is frictionally charged with a given quantity of electric charge. Subsequently, the toner is adhered on a photoreceptor drum along by the electrostatic latent image to develop an image at the developing region at which the developing roller comes into contact with the photoreceptor drum. After development, the electric charge of the toner layer on the developing roller is removed with an electric-charge-removing sheet. The toner after development is recovered into a toner hopper via the toner-supplying roller. In rotation direction of the developing roller, the relation of the width Wt of the toner layer to the width Wc of the electric-charge-removing sheet is established so as to be Wc.gtoreq.Wt. Thus, the electric charge of the toner layer on the developing roller is certainly removed.
REFERENCES:
patent: 4656965 (1987-04-01), Hosoya et al.
patent: 4745429 (1988-05-01), Mukai et al.
patent: 4930438 (1990-06-01), Demizu et al.
patent: 5552870 (1996-09-01), Murakami et al.
patent: 5568236 (1996-10-01), Toda et al.
patent: 5600419 (1997-02-01), Sakuraba et al.
patent: 5634177 (1997-05-01), Taguchi et al.
patent: 5708921 (1998-01-01), Yagi et al.
patent: 5781827 (1998-07-01), Shimada et al.
Adachi Katsumi
Azuma Nobuyuki
Inoue Atsushi
Iwamatsu Tadashi
Matsuyama Kazuhiro
Chen Sophia S.
Sharp Kabushiki Kaisha
LandOfFree
Developing apparatus having means for removing electric charge o does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Developing apparatus having means for removing electric charge o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developing apparatus having means for removing electric charge o will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-371625