Electrophotography apparatus

Details Electrophotography apparatus Electrophotography apparatus

1993-12-09

1996-04-30

Brase, Sandra L.

Photocopying

Contact printing

Light boxes

355208, 358448, 358458, G03G 2100

Patent

active

055129862

ABSTRACT:
In an electrophotography apparatus, a dark reference is derived from an output of a density sensor detecting a pattern of saturation density, and a highlight reference is derived from an output of the density sensor detecting a surface of an intermediate transfer sheet. Based on these dark reference and the highlight reference, read-in values of gradation correction patterns detected by the density sensor is normalized to make a gradation correction table.

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patent: 5294959 (1994-03-01), Nagao et al.
patent: 5315352 (1994-05-01), Nakane et al.

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