Image forming apparatus using a linear equation to sense surface

Details Image forming apparatus using a linear equation to sense surface Image forming apparatus using a linear equation to sense surface

1991-07-22

1992-11-10

Braun, Fred L.

Photocopying

Contact printing

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355214, 355246, G03G 2100, G03G 1502

Patent

active

051628503

ABSTRACT:
An image forming apparatus for uniformly charging the surface of a photoconductive element, exposing the charged surface of the photoconductive element imagewise to electrostatically form a latent image, and developing the latent image by a toner or similar developer. A linear equation is produced which is a reference representative of the input-output characteristic of a sensor responsive to the surface potential of the photoconductive element. The linear equation is used to calculate an accurate surface potential matching the output of the sensor. A bias voltage for development or similar image forming condition is controlled on the basis of the calculated surface potential.

REFERENCES:
patent: 3788739 (1974-01-01), Coriale
patent: 4026643 (1977-05-01), Bergman
patent: 4129375 (1978-12-01), Miyakawa et al.
patent: 4178095 (1979-12-01), Champion et al.
patent: 4583839 (1986-04-01), Suzuki
patent: 4853738 (1989-08-01), Rushing
patent: 4949135 (1990-08-01), Ng

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