The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 1992
Filed:
Jun. 19, 1991
Applicant:
Inventor:
Igor Kubelik, Mississauga, CA;
Assignee:
Delphax Systems, Canton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346159 ;
Abstract
A printer has a print cartridge with a plurality of electrically isolated screen electrodes extending in parallel strips and maintained at different potentials to define a uniform electric field in the gap between a print cartridge and a latent imaging member curved about an axis parallel to the strips. As charge carriers are generated, the potentials on a plurality of control electrodes located between the charge carriers and overlying screen electrodes are controlled to provide a fixed bias. This assures gating of a uniform quantity of charge from different apertures of the print cartridge, as well as uniform size of the charge dots formed on the imaging member.