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:
Jul. 31, 2007
Filed:
Feb. 17, 2005
Toshihide Ohgoshi, Nara, JP;
Fumito Mizoguchi, Nara, JP;
Toshihide Ohgoshi, Nara, JP;
Fumito Mizoguchi, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A developing device is provided, in which respective lateral ends (the portions overlapped with the side seals) of the front seal boardare adhered/fixed to the side seals. More specifically, the gap between the both sides Aand the return edge Aof the opening section A of the toner tankand the developing roller is sealed by a single plane composed of the side sealsand the front seal boardthat are combined with each other. On this account, there is no gap between the side sealand the front seal boarddue to vibration caused by external force, time degradation etc. (i.e., it prevents the side sealsto be away from the front seal board). On this account, toner leakage can be securely prevented even when the developing device is driven for a long period of time or when some kind of vibration is applied to the development device.