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.

Date of Patent:
Nov. 27, 2007

Filed:

Dec. 23, 2004
Applicant:

Tomoyuki Imura, Toyohashi, JP;

Inventor:

Tomoyuki Imura, Toyohashi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A developing devicehas a voltage application memberwhich is in contact via a toner layer with a developing rollerthat rotates while holding the toner layer on its outer peripheral surface. To the toner layer, the voltage application memberapplies a relatively low voltage in an upstream-side contact portion with respect to a rotational direction of the developing roller, and applies a relatively high voltage in a downstream-side contact portion thereof.


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