Recording apparatus for performing uniform density image recordi

Details Recording apparatus for performing uniform density image recordi Recording apparatus for performing uniform density image recordi

1991-04-26

1994-01-04

Hartary, Joseph W.

Recorders

Combined with external recorder operating means

Well logging

346140R, 358503, 358518, 358296, B41J 201

Patent

active

052764591

ABSTRACT:
The present invention relates to image recording apparatus for performing image recording on a recording medium by using plural types of recording heads, each having a plurality of recording elements comprising an array. A test pattern forming unit for forming test patterns on the recording medium by using the plural types of recording heads, a reading unit for reading the test patterns recorded by the test pattern recording unit, and a correction unit for correcting image signals for driving the recording elements in accordance with the recording elements and types of recording heads on the basis of data read by the reading unit are included whereby image density is made uniform.

REFERENCES:
patent: 4647184 (1987-03-01), Russell
patent: 4692778 (1987-09-01), Yoshimura
patent: 4710785 (1987-12-01), Mills
patent: 4827279 (1989-05-01), Lubinsky
patent: 5038208 (1991-08-01), Ichikawa
patent: 5039237 (1991-08-01), Tanuma
patent: 5084758 (1992-01-01), Danzuka

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