Recorders – Electric recording – Electrochemical
Patent
1989-02-07
1990-02-06
Evans, Arthur G.
Recorders
Electric recording
Electrochemical
346160, G01D 1500
Patent
active
048991830
ABSTRACT:
The present invention relates to an image forming apparatus which comprises an optical shutter array having a plurality of optical shutters constructed of material possessing electro-optical effects, polarizing member provided on the entering light side of the optical shutter array, analyzing member provided on the exiting light side of the optical shutter array, actuation voltage impression means for applying an actuation voltage to the optical shutter array based on image signals, a photosensitive member on which an electrostatic latent image is formed by exposure to light transmitted through the optical shutter array, detecting means for detecting a decayed surface potential of the photosensitive member induced by light exposure, compensating means, when the detected value by the detecting means is greater than a predetermined reference value, for changing the actuation voltage applied to the optical shutters until said detected value is less than the reference value, control means, upon detection of the detected value to be less than said reference value, for setting the compensated voltage as a compensated actuation voltage to be applied to the optical shutter array, and which applies the compensated actuation voltage to optical shutters in accordance with the type of light generated by the light source and the spectral sensitivity of the photosensitive member.
REFERENCES:
patent: 4154505 (1979-05-01), Kato et al.
patent: 4697889 (1987-10-01), Takubo et al.
patent: 4803565 (1989-02-01), Teshigawara et al.
patent: 4823151 (1989-04-01), Miura
Kitano Hirohisa
Masuda Tomohiko
Matsubara Ken
Saito Itaru
Shingaki Kouichi
Evans Arthur G.
Minolta Camera Kabushiki Kaisha
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