Color thermal printing method for reducing displacement of color

Details Color thermal printing method for reducing displacement of color Color thermal printing method for reducing displacement of color

1996-05-20

1998-06-30

Le, N.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Multicolor

B41J 2325, B41J 1100, B41J 3300

Patent

active

057741620

ABSTRACT:
A thermosensitive color recording paper is provided having a cyan thermosensitive coloring layer, a magenta thermosensitive coloring layer, and a yellow thermosensitive coloring layer, respectively laminated on a supporting material in this order. The thermosensitive color recording paper is placed on a platen drum which is rotated by a pulse motor via a timing belt in a subsidiary scan direction. During the rotation of the platen drum, the plane sequential thermal recording and light fixation of the thermosensitive color recording paper are performed by a thermal head. In thermally recording a pixel, each heating element of the thermal head generates a bias heat energy specific to each thermosensitive coloring layer followed by an image heat energy corresponding to the record density of the pixel. The platen drum starts rotating by the amount corresponding to one line at the timing of the start of generating the image heat energy or at the timing delayed by a predetermined time from the start of generating the image heat energy, so as to make the positions of color pixels coincide with each other.

REFERENCES:
patent: 4734704 (1988-03-01), Mizutani et al.
patent: 4806950 (1989-02-01), Sekine et al.
patent: 5019836 (1991-05-01), Iwata et al.
patent: 5095316 (1992-03-01), Hakkaku
patent: 5177499 (1993-01-01), Yoshida et al.

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