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:
Jan. 09, 1996
Filed:
Jun. 10, 1994
Fujitsu, Ltd., Kawasaki, JP;
Abstract
In a toner supply control system for a printing device, a toner supply unit supplies a developing unit of the printing device with a two-component developer containing toner particles and carrier particles in accordance with a first control signal. A storage unit stores information concerning a plurality of toner marks formed on an electrostatic latent image carrying member of the printing device and developed by the developing unit. The toner marks respectively have patterns related to condition of the two-component developer. A selecting unit selects one of the toner marks in accordance with a second control signal. A sensor optically reads the toner mark formed on the electrostatic latent image carrying member and generates a detection signal. A first control unit generates the second control signal on the basis of the condition of the two-component developer. A second control unit generates the first control signal on the basis of the detection signal.