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:
Nov. 11, 2008
Filed:
Nov. 27, 2006
Masato Iio, Kanagawa-ken, JP;
Osamu Endou, Kanagawa-ken, JP;
Masato Iio, Kanagawa-ken, JP;
Osamu Endou, Kanagawa-ken, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing device includes a toner supplying roller, a developing roller for transferring the one-component toner to a developing position by performing a developing rotation in an image forming operation and moving away from the developing position, a sealing member arranged in a vicinity of the developing roller, and a toner layer regulating roller arranged in contact with the developing roller for locking a rotating operation in the image forming operation, for regulating the one-component toner which adheres on a surface of the developing roller into a thin layer and for freely following the developing roller in a non-image forming operation. A compulsory toner consumption operation is performed to supply toner onto the image bearing member after termination of the non-image forming operation.