Photocopying – Contact printing – Light boxes
Patent
1994-06-10
1996-01-09
Brase, Sandra L.
Photocopying
Contact printing
Light boxes
355208, G03G 2100
Patent
active
054833280
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.
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Kawasaki Noriko
Sugimoto Katsumi
Uematsu Akihiko
Brase Sandra L.
Fujitsu Ltd.
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