Developing device with toner and magnetic carrier, and image...

Details Developing device with toner and magnetic carrier, and image... Developing device with toner and magnetic carrier, and image...

2005-12-22

2008-08-26

Royer, William J (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S055000, C399S270000

Reexamination Certificate

active

07418215

ABSTRACT:
A developing device includes a developing housing which faces an image carrier on which an electrostatic latent image is carried and stores a developer which contains toner and magnetic carrier; a developer carrier that is disposed apart from the image carrier in the developing housing and carries and transports the developer; a developing bias applying unit that is disposed between the image carrier and the developer carrier and applies a developing bias comprising an AC component and a DC component which is superposed to a DC component; a volume resistivity detecting unit which detects a volume resistivity of the developer on the developer carrier; and a developing bias adjusting unit which sets the AC component of the developing bias to a reference value when the volume resistivity of the developer detected by the volume resistivity detecting unit falls within a given range, and corrects the AC component of the developing bias such that an image quality evaluation parameter falls within an allowable range when the volume resistivity of the developer exceeds the given range.

REFERENCES:
patent: 6925269 (2005-08-01), Hibino
patent: 7-325468 (1995-12-01), None
patent: 10-142908 (1998-05-01), None

Affiliated with

Also associated with

Rating

Developing device with toner and magnetic carrier, and image... 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 device with toner and magnetic carrier, and image..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developing device with toner and magnetic carrier, and image... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3994688