Thermal transfer printing device

Details Thermal transfer printing device Thermal transfer printing device

1999-08-06

2000-04-18

Tran, Huan

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

347201, B41J 2335

Patent

active

060521392

ABSTRACT:
A thermal transfer printing device includes a thermal printing head of the corner-edge type having heating elements disposed on one edge and forming a printing bar. The edge faces a backing roller, is parallel to the axis thereof, and around which an ink ribbon is led directly away from a letter or envelope to be printed. A shell which is provided on the underside of the thermal printing head faces the backing roller. The shell extends immediately up to the printing bar and has a bottom surface with a region adjacent the printing bar at approximately the same height as the printing bar. The thermal printing head including the shell and the backing roller, are adjustable relative to one another. Good ink particle detachment and a relatively low contact force are provided. Disadvantages with regard to soft and sensitive mail can be avoided and the service life of the thermal printing head is prolonged due to a lower contact force. A good print quality is achieved, irrespective of the finish of the letters or envelopes and at a high transport speed of the latter.

REFERENCES:
patent: 4947183 (1990-08-01), Yagino

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