Photocopying – Contact printing – Light boxes
Patent
1990-06-22
1992-09-08
Grimley, A. T.
Photocopying
Contact printing
Light boxes
118689, 118691, 355 30, 355215, 355246, G03G 2100
Patent
active
051462745
ABSTRACT:
A photoelectronic image forming apparatus reproduces an image on the basis of an electrostatic latent image produced on a photo-sensitive body by using a developer containing a toner and a carrier, and comprises a plurality of toner density measuring units for respectively producing outputs each indicative of a toner density of the developer and a toner density determining unit responsive to the outputs for determining an actual toner density so as to precisely control the tone of the image.
REFERENCES:
patent: 4310238 (1982-01-01), Mochizuki et al.
patent: 4468112 (1984-08-01), Suzuki et al.
patent: 4607933 (1986-08-01), Haneda et al.
patent: 4742370 (1988-05-01), Murakami et al.
patent: 4888618 (1989-12-01), Ishikawa
patent: 4916488 (1990-05-01), Kimura
patent: 4980726 (1990-12-01), Aoki
patent: 5081498 (1992-01-01), Bares
Fukui Kazuyuki
Hada Yoshinobu
Hattori Yoshihiro
Barlow Jr. J. E.
Grimley A. T.
Minolta Camera Co. Ltd.
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