Color thermal printer with driver and interlocking device

Details Color thermal printer with driver and interlocking device Color thermal printer with driver and interlocking device

1995-08-24

1998-10-20

Le, N.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Pre or post image recording treatment

347175, B41J 2315, B41J 2325, G01D 1516

Patent

active

058253963

ABSTRACT:
A color thermal printer for printing a full-color image in frame-sequential fashion to a color thermosensitive recording sheet (12) including yellow, magenta and cyan coloring layers (26-28). A fixing station is disposed next to a thermal head (18). One of first and second fixing devices (30, 31) is alternatively set in a fixing station. While recording a yellow frame on the recording sheet transported in a forward direction to the fixing station, the first fixing device (30) is set in the fixing station to project ultraviolet rays for fixing the yellow coloring layer (28) onto the recording sheet. While the recording sheet temporarily stops with its end nipped between a pair of transport rollers, a shutter plate (70) is inserted between the recording sheet and the first fixing device still projecting the ultraviolet rays, at the same speed as the transport speed of the recording sheet to uniformly and sufficiently fix as much area of the recording sheet as possible. After the yellow fixation, the recording sheet is moved in a reverse direction toward the thermal head. While recording a magenta frame, the second fixing device (31) generates ultraviolet rays for fixing the magenta coloring layer (27).

REFERENCES:
patent: 4734704 (1988-03-01), Mizutani et al.
patent: 5216438 (1993-06-01), Nakao et al.
patent: 5486856 (1996-01-01), Katsuma et al.
patent: 5537140 (1996-07-01), Hayashi et al.
patent: 5565903 (1996-10-01), Ueda
patent: 5629729 (1997-05-01), Fujishiro

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