Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1984-07-18
1986-11-25
Prescott, A. C.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 3DD, 355 14CH, 355 14E, G03G 1500
Patent
active
046245480
ABSTRACT:
There is disclosed an image density control device having original density detector, a leading edge detector for detecting a leading edge of original, and controller for controlling image forming conditions in accordance with an output of said original density detector. An optimum control of the image forming conditions is performed by means of combination of the original density detected by said original density detector in a predetermined area divided in original area or for a given period of time from an output signal generated from said leading edge detector, and the original density detected by said density detection means in an area located before or after said predetermined area or for a period of time before or after said given period of time.
REFERENCES:
patent: 3749488 (1973-07-01), DeLorme
patent: 3926518 (1975-12-01), Berry et al.
patent: 4095887 (1978-06-01), Van Herten et al.
patent: 4153364 (1979-05-01), Suzuki et al.
patent: 4157822 (1979-06-01), Miller
patent: 4170414 (1979-10-01), Hubert et al.
patent: 4200391 (1980-04-01), Sakamoto et al.
patent: 4239374 (1980-12-01), Tatsumi et al.
patent: 4352553 (1982-10-01), Hirahara
patent: 4354758 (1982-10-01), Futaki
patent: 4355885 (1982-10-01), Nagashima
patent: 4564287 (1986-01-01), Suzuki et al.
Canon Kabushiki Kaisha
Prescott A. C.
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