Incremental printing of symbolic information – Thermal marking apparatus or processes – Multicolor
Patent
1993-05-27
1996-03-26
Tran, Huan H.
Incremental printing of symbolic information
Thermal marking apparatus or processes
Multicolor
347218, 400645, 40012004, B41J 2325
Patent
active
055024777
ABSTRACT:
A color printer for recording an image having at least two colors on a recording sheet with a recording head being brought into contact with a platen roller in a state that the recording sheet is interposed therebetween, the two colors being successively printed on a surface of the recording sheet with the recording sheet being operated to reciprocate with respect to a recording position on the platen roller. The printer includes a clamping device provided at a downstream side of the recording head in a sheet-travelling path from a supply section of the recording sheet to a discharging section of the recording sheet for holding the recording sheet when recording the image. The clamping device is fixed with respect to the recording position so that a distance between a holding position of the recording sheet taken by the clamping device and the recording position on the platen roller is always constant during the image recording. This arrangement can make easy the positioning of the recording sheet in the recording process to provide a high-quality image on the recording sheet. Also included is a reversing device provided at an upstream side of the recording head in the sheet-travelling path for moving the recording sheet toward an upstream side in the sheet-travelling path before the image recording. Thus, it is possible to remove the looseness of the recording sheet between the clamping device and the platen roller.
REFERENCES:
patent: 4717270 (1988-01-01), Tsutsumi
Kanbe Satoshi
Kohno Toshiro
Osada Naomi
Tran Huan H.
Victor Company of Japan Ltd.
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