Image forming apparatus responsive to ambient condition detectin

Details Image forming apparatus responsive to ambient condition detectin Image forming apparatus responsive to ambient condition detectin

1990-08-31

1992-07-07

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355214, 355246, G03G 2100

Patent

active

051287188

ABSTRACT:
An image forming apparatus is disclosed which is capable of controlling the quality of the images formed in accordance with detected environmental conditions. This is accomplished in the invention through the use and control of predetermined values which are dependent upon the detected environmental state. A correcting device corrects the predetermined value based on results detected by an image density detecting sensor, whereby the correcting amounts are varied in accordance with the detected environmental state. A constant image density is always obtained regardless of variations in the inner environment of the image formation system.

REFERENCES:
patent: 4502777 (1985-03-01), Okamoto et al.
patent: 4879576 (1989-11-01), Naito
patent: 4888618 (1989-12-01), Ishikawa
patent: 4989039 (1991-01-01), Hayashi et al.
patent: 5034772 (1991-07-01), Suzuki
patent: 5049939 (1991-09-01), Koichi
patent: 5057867 (1991-10-01), Ishigaki et al.

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