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.:

US 7953344 B1

PDF
Full Text
Expired
Date of Patent:
May. 31, 2011

Filed:

Jun. 12, 2008
Applicant:

Kazufumi Ishida, Shizuoka-ken, JP;

Inventor:

Kazufumi Ishida, Shizuoka-ken, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A technique is provided that enables maintaining an appropriate level of image quality even under conditions that the quantity of residual toner increases in an image forming apparatus in which a lubricant is supplied to a cleaning target part from which a residual toner is removed by a cleaning member. In timing when a toner image carried on an image carrier reaches a predetermined transfer position, reaching failure information indicating that a sheet to which the toner image should be transferred does not reach the predetermined transfer position is acquired. In the case where the reaching failure information is acquired, an electric field that is opposite to an electric field generated when transferring the toner image on the image carrier to the sheet is generated between the image carrier and the transfer member.


Find Patent Forward Citations

Ishida, Kazufumi. (2011). Image forming apparatus and image quality maintaining method (U.S. Patent No. 7953344). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7953344

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