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:
Mar. 22, 2005
Filed:
Aug. 18, 2003
Hidetsugu Shimura, Nagano-ken, JP;
Takashi Hama, Nagano-ken, JP;
Hidenori Kin, Nagano-ken, JP;
Keiichi Taguchi, Nagano-ken, JP;
Hiroshi Nakazato, Nagano-ken, JP;
Hidetsugu Shimura, Nagano-ken, JP;
Takashi Hama, Nagano-ken, JP;
Hidenori Kin, Nagano-ken, JP;
Keiichi Taguchi, Nagano-ken, JP;
Hiroshi Nakazato, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A condition controlling process is executed when parameters expressing a state of toner within a developer reaches predetermined threshold values. On each one of two parameters, namely, a dot count value which is indicative of a toner consumption amount (an integrated value of the number of dots formed using an exposure beam) and a developer roller rotating time which is indicative of the degree of toner fatigue, a threshold value (denoted at the dotted lines) which triggers execution of the condition controlling process is set. At the time that the path d of dots which are expressed as combinations of these parameters intersects each dotted line (the intersections (1) through (6)), the condition controlling process is executed.