Quarter-tone thermal backprinting

Details Quarter-tone thermal backprinting Quarter-tone thermal backprinting

1992-10-02

1995-07-18

Tran, Huan H.

Incremental printing of symbolic information

Thermal marking apparatus or processes

B41J 2325

Patent

active

054345960

ABSTRACT:
A thermal backprinting apparatus 10 has a print head 18 that prints characters on the reverse side of sheet 12. The sheet is driven past a print head 18 to skip every other line and print head 18 is energized to print every other pixel and form a quarter-tone image.

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