Platen for use in thermal printer

Details Platen for use in thermal printer Platen for use in thermal printer

1987-10-30

1988-10-25

Evans, Arthur G.

Recorders

Thermal recording

400662, G01D 1500

Patent

active

047807296

ABSTRACT:
A platen for use in a thermal printer of a type designed to effect printing with the use of at least one thermal print head for printing a recording medium positioned between the platen and the thermal print head, which platen comprises a generally elongated elastic body having an exterior surface adapted to be brought into contact with the heating elements of the thermal print head assembly with at least the recording medium intervening therebetween. At least the exterior surface of the elastic body is mixed with a mass of porous fine particles having a hardness greater than that of the elastic body and also having a thermal conductivity lower than that of the elastic body. The thermal conductivity and the porosity of the porous fine particles may be within the range of 0.04 to 0.09 Kcal/m.sup.2.hr..degree.C. and within the range of 60 to 95%, respectively.

REFERENCES:
patent: 4082619 (1978-04-01), Dehnert
patent: 4399749 (1983-08-01), Arai
patent: 4725853 (1988-02-01), Kobayashi et al.

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