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:
Oct. 01, 1991
Filed:
Mar. 28, 1990
Applicant:
Inventor:
Tomohiko Takahashi, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355208 ; 355245 ;
Abstract
A laser printer includes a photosensitive drum, a developing device, a transferring device, and a fixing device. The photosensitive drum and the developing device are mounted along with a process cartridge within one body. The process cartridge is detachably inserted into the body. When the process cartridge is out of the body, the state of the process cartridge is treated as being 'new'. The state of the process cartridge is changed from the 'new' state to a 'used' state after an initializing operation of the process cartridge after it is completed and inserted into the body.