Photocopying – Contact printing – Light boxes
Patent
1991-11-14
1993-05-25
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355204, 355208, 222DIG1, 118689, 395900, G03G 2100
Patent
active
052144763
ABSTRACT:
An image forming apparatus includes a developing unit for toner-developing a latent image formed on a photoreceptor, and a dual-component developer consisting of carrier particles and toner particles is contained in the developing unit. A toner concentration in the developing unit is sensed by a magnetic sensor. An output voltage of the magnetic sensor is applied to a microcomputer through an analog-to-digital converter. The microcomputer sets a toner supply time in accordance with a fuzzy inference based on the output voltage of the magnetic sensor and a change amount of the output voltage of the magnetic sensor. A toner supply motor is driven for the set time. Consequently, the toner supply roller supplies toner particles to the developing unit from a toner box.
REFERENCES:
patent: 3572551 (1971-03-01), Gillespie
patent: 3698926 (1972-10-01), Furuichi
patent: 3928764 (1975-12-01), Bock et al.
patent: 4342283 (1982-08-01), Terashima
patent: 4514480 (1985-04-01), Wada et al.
patent: 4734737 (1988-03-01), Koichi
patent: 4967691 (1990-11-01), Chikama et al.
patent: 5029314 (1991-07-01), Katsumi et al.
patent: 5142332 (1992-08-01), Osawa et al.
Asada Masahiko
Nomura Noriyoshi
Grimley A. T.
Sanyo Electric Co,. Ltd.
Smith Matthew S.
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