Thermal transfer apparatus for fusing print dye on a media

Details Thermal transfer apparatus for fusing print dye on a media Thermal transfer apparatus for fusing print dye on a media

1994-06-02

1996-07-30

Tran, Huan H.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Pre or post image recording treatment

355285, 355289, 355290, 347102, B41J 2900

Patent

active

055416365

ABSTRACT:
A thermal apparatus for fusing print dye onto print media in a hard copy machine is disclosed. A medium bearing a "wet" image, such as text or graphics in ink or toner, is fed by the machine into the apparatus. Sensing the presence of the medium, the heater element(s) of the apparatus are activated. As the medium is fed into the apparatus, the toner or ink is at least partially fixed to the medium prior to its leading edge reaching transport rollers of the apparatus which grab the medium in a nip to continue its path through and out of the apparatus. The heater element(s) are turned off when the trailing edge of the medium is sensed. The heater is a laminated device. Grooves are provided on the face of the heater proximate the medium path in order to improve heat transfer from the device to fix the image.

REFERENCES:
patent: 3219799 (1965-11-01), Trumbull et al.
patent: 4034189 (1977-07-01), Sakamaki
patent: 5155503 (1992-10-01), Tasaki et al.
patent: 5411825 (1995-05-01), Tam

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