Platen arrangement for hot melt ink jet apparatus

Details Platen arrangement for hot melt ink jet apparatus Platen arrangement for hot melt ink jet apparatus

1987-09-09

1988-06-14

Goldberg, E. A.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 11, 400126, 2503161, 250319, G01D 1516, G01D 900, G03G 1516

Patent

active

047515287

ABSTRACT:
In the particular embodiment described in the specification, a hot melt ink jet system includes a temperature-controlled platen provided with a heater and a thermoelectric cooler electrically connected to a heat pump and a temperature control unit for controlling the operation of the heater and the heat pump to maintain the platen temperature at a desired level. The apparatus also includes a second thermoelectric cooler to solidify hot melt ink in a selected zone more rapidly to avoid offset by a pinch roll coming in contact with the surface of the substrate to which hot melt ink has been applied. An airtight enclosure surrounding the platen is connected to a vacuum pump and has slits adjacent to the platen to hold the substrate in thermal contact with the platen.

REFERENCES:
patent: 4140907 (1979-02-01), Oba
patent: 4593292 (1986-06-01), Lewis

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