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:
Aug. 03, 1993
Filed:
Mar. 20, 1992
Applicant:
Inventor:
Tetsuya Fujimoto, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355245 ; 355251 ; 118653 ;
Abstract
A bracket having great rigidity is provided. A magnetic roller is rotatably mounted on the bracket and a doctor blade is fixed to the bracket. A bracket assembly comprising the bracket, the magnetic roller and the doctor blade is fixed to a frame of a developing unit. A gap g between the magnetic roller and the doctor blade is maintained at a predetermined value even if the frame is deformed due to an external force, and thus printing at a constant density is ensured.