Thermal head supporting means for a thermal printing system

Details Thermal head supporting means for a thermal printing system Thermal head supporting means for a thermal printing system

1989-09-25

1990-10-09

Reynolds, Bruce A.

Recorders

Instrument support instrument part support

346 76PH, 400120, G01D 1500

Patent

active

049623923

ABSTRACT:
Each of the parts or components constitutes the thermal head holder is designed to be small in size, thin thickness and having such a shape as can be readily fabricated by press forming of metal sheet or by moulding plastic material, in addition, the thermal head supporting means as a sub-assembly is attached to the central part of the rotary shaft so that it can be supported in a manner of one point central support type suspension.
Depression of the thermal head utilizing this supporting means against a platen roller is performed by urging, relying on cam action, a thermal head urging lever having a length considerably shorter in axial direction and very light weight, thereby the depression can be applied to the platen of a thermal printing system via a depression spring disposed at the central part of the thermal head holder and normal to the aforesaid rotary shaft and in a central support type manner.

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