Incremental printing of symbolic information – Thermal marking apparatus or processes – With transfer medium or driving means therefor
Patent
1997-07-01
2000-01-04
Le, N.
Incremental printing of symbolic information
Thermal marking apparatus or processes
With transfer medium or driving means therefor
B41J 3314
Patent
active
060115742
ABSTRACT:
In a line thermal head printer apparatus, a ribbon tape is moved, only while printing is to be made, synchronously with the moving velocity of the object to be printed. The ribbon tape is moved only by the amount needed for printing and the amount of use of the ribbon tape is reduced and yet a beautiful printing is made. Ribbon tape 2 unwound from a heat transfer ribbon tape master roll 1 is lapped with a packaging material film 8 on a platen roller 6 and printing is made by a line thermal head 5 on the packaging material film 8. The ribbon tape 2 is stopped by a braking action making use of a maximum static torque characteristic of a stepping motor until a portion to be printed of the packaging material film 8 approaches, and is moved by the stepping motor only when the portion to be printed of the packaging material film 8 arrives. With a signal from an detector 10 to detect a velocity of the packaging material film 8, the stepping motor moves the ribbon tape 2 at a velocity always synchronized with the velocity of the packaging material film 8 and a beautiful printing is made at a predetermined place.
REFERENCES:
patent: Re33496 (1990-12-01), Matsuno et al.
patent: 4879566 (1989-11-01), Hanabusa
patent: 4916560 (1990-04-01), Kawaguchi
patent: 5647679 (1997-07-01), Green et al.
Sogabe Masuo
Tazaki Ribun
Daisey Kikai Co., Ltd.
Le N.
Vo Anh T. N.
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