Image forming apparatus

Details Image forming apparatus Image forming apparatus

1997-06-24

2000-06-20

Coles, Edward L.

Facsimile and static presentation processing

Static presentation processing

Memory

358 116, 358 115, 358456, 358458, 358500, 358459, B41B 1500, H04N 140

Patent

active

060784016

ABSTRACT:
In order to reduce the storage capacity of a memory for a density adjusting table and change the density adjustment range with a relatively high degree of freedom, a density characteristic adjusting table section corresponding to set density based on reference data of light, center and dark for density characteristic adjustment previously stored in a correction data table section is created in a table forming section, a density characteristic adjustment value corresponding to an input image signal from a scanner section is derived by effecting the linear interpolation according to neighboring density characteristic adjustment values based on the input image signal in a density characteristic adjustment value calculating section, and the input image signal is corrected by use of the derived density characteristic adjustment value in a density characteristic adjusting section and then output to a printer section as an output image signal.

REFERENCES:
patent: 4805013 (1989-02-01), Dei et al.
patent: 5060061 (1991-10-01), Shishido et al.
patent: 5113251 (1992-05-01), Ichiyanagi et al.
patent: 5187570 (1993-02-01), Hibi et al.
patent: 5260806 (1993-11-01), Samworth

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