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:
Aug. 31, 1999
Filed:
Mar. 12, 1998
Hidenori Fujioka, Kawasaki, JP;
Kazuhiko Hamazoe, Kawasaki, JP;
Masakazu Kinoshita, Kawasaki, JP;
Tsutomu Kawai, Kawasaki, JP;
Masahiro Wanou, Kawasaki, JP;
Youji Houki, Kawasaki, JP;
Kaneastu Uchiyama, Kawasaki, JP;
Kouichi Kobayashi, Kawasaki, JP;
Takeo Kojima, Kawasaki, JP;
Morihisa Kawahara, Kawasaki, JP;
Shinichirou Yamamoto, Kawasaki, JP;
Masakazu Kanaka, Kawasaki, JP;
Hirofumi Nakayasu, Kawasaki, JP;
Tsutomu Nagatomi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A toner developing quantity detection unit operates a plurality of electrostatic recording units to transfer Y, M, C and K color component toner marks onto a belt. A toner developing quantity correction unit detects toner developing quantities per unit area of color toners on the basis of detection signals of the color component toner marks on the belt optically detected by a sensor. The toner developing quantity correction unit corrects the toner developing quantities so as to allow the toner consuming quantities of the plurality of electrostatic recording units to be substantially the same level, on the basis of the thus detected toner developing quantities.