Image forming method

Details Image forming method Image forming method

1992-11-25

1994-07-05

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118689, 355246, G03G 1500

Patent

active

053271963

ABSTRACT:
In an image forming method using an electrophotographic process, an amount of toner to be supplemented for maintaining a desired image density is estimated in response to input data which are a ratio of reflection densities produced by an optical sensor responsive to a pattern for control and an estimated toner consumption signal. Toner supplement control is executed on the basis of the result of estimation. The method sharply responds to a change in environment due to aging and a change in the kind of documents to thereby insure stable image density, compared to a conventional method relaying on an optical sensor or a toner sensor.

REFERENCES:
patent: 4468112 (1984-08-01), Suzuki et al.
patent: 4648702 (1987-03-01), Goto
patent: 4883019 (1989-11-01), Menjo et al.
patent: 4974024 (1990-11-01), Bares et al.

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