Thermal printer

Details Thermal printer Thermal printer

1993-08-16

1995-10-17

Tran, Huan H.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Record receiver and transfer medium feeding or driving means

347217, 347218, 347197, 4002351, 400618, 400617, 400636, 4006362, B41J 1303, B41J 13036

Patent

active

054595045

ABSTRACT:
The heat transfer ribbon can be held by a heat transfer ribbon feed roller and a heat transfer ribbon pinch roller and can be fed in the direction opposite to the normal feeding direction for printing and also effectively used even if there appears a large blank space between the printed portions on the paper by returning it by the length corresponding to such a blank space. Furthermore, since the heat transfer ribbon feed roller or the heat transfer ribbon pinch roller is provided with a mechanism for applying turning effort to give directly tension to the heat transfer ribbon, a given tension is always applied to the heat transfer ribbon to thereby prevent the wrinkle from generating thereon even if the outer diameter of the heat transfer ribbon wound around a supply roller is varied. Still furthermore, the heat transfer ribbon pinch roller and the paper pinch roller are integrated with each other to form a pinch roller unit for facilitating the assembly thereof and improving the maintenance thereof.

REFERENCES:
patent: 4860028 (1989-08-01), Ogawa
patent: 5001498 (1991-03-01), Shimizu et al.

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