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:
Apr. 05, 1983
Filed:
May. 19, 1981
Kenji Ueno, Hachioji, JP;
Yoshio Ymazaki, Hachioji, JP;
Abstract
In an electrophotographic copying machine of the type utilizing a single-component developer applied to a photosensitive member through the use of a magnetic brush; a regulating plate is positioned across the sleeve of the brush immediately prior to the juxtaposition of the sleeve and the photosensitive member in order to prevent spill-over of excess magnetic toner. This plate is preferably in addition to another regulating plate placed across the sleeve upstream of the first regulating plate where the developer is fed to the sleeve. Both plates have wider outer edges closely spaced to the sleeve to prevent rising of the developer over these outer edges when the magnetic force of the brush is weak and does not hold the developer to the sleeve.