Line printer

Details Line printer Line printer

1995-09-28

1998-08-18

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Thermal

347184, B41J 0236

Patent

active

057950814

ABSTRACT:
A line printer including a device for receiving gradation scale values of pixels for one line to be printed, and a plurality of tables for correcting a density variation caused by common resistance unevenness. The line printer further includes a device for arithmetically obtaining a number of printing elements to be operated for each gradation scale for printing from the gradation scale values of the pixels for one line received by the receiving device, and a device for retrieving an optimal table from the plurality of tables on the basis of the number of printing elements obtained by the arithmetic device.

REFERENCES:
patent: 5242230 (1993-09-01), Arakawa

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