Image forming apparatus and method having gradation control in a

Details Image forming apparatus and method having gradation control in a Image forming apparatus and method having gradation control in a

1995-03-24

1996-10-15

Pendegrass, Joan H.

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358458, G03G 1500

Patent

active

055663729

ABSTRACT:
An image forming apparatus performs excellent gradation control in a dense area in which gradation characteristics are non-linear. The image forming apparatus has a pattern forming unit which forms a gradation pattern on a recording member, and a read unit which reads the gradation pattern formed by the pattern forming unit. An adjusting unit adjusts image forming conditions on the basis of the gradation pattern read by the pattern read unit. In a density area in which gradation characteristics are non-linear, the number of steps of the gradation pattern is set to be larger than that in another density area.

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