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:
Feb. 18, 1992
Filed:
Jun. 29, 1990
Applicant:
Inventor:
Hakaru Muto, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ; G03G / ;
U.S. Cl.
CPC ...
3461601 ; 355301 ;
Abstract
An image forming apparatus includes recording electrodes electrically isolated from each other, a recording medium movable relative to the recording electrodes and a developer supplying device for supplying a conductive developer into between the recording electrodes and the recording medium. The invention is particularly related to the removal of the developer from the recording medium. The amount of electricity produced in the means for removing the developer is detected, and in response to the detection, a bias voltage applied to the removing means is controlled.