Method of manufacturing thermal head

Details Method of manufacturing thermal head Method of manufacturing thermal head

2006-12-21

2008-08-19

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

Reexamination Certificate

active

07414641

ABSTRACT:
Both ends of a head substrate in a longitudinal direction warp in a direction away from a cross section of a print substrate (in the convex shape) when a sealing resin is cured. A central portion of the head substrate in a longitudinal direction warps in a direction away from the cross section of the print substrate (in the concave shape) when heating elements emit heat. A curing condition when curing the sealing resin is changed corresponding to the concave-shaped warpage occurring when the heating elements emit heat, such that the convex-shaped warpage of the head substrate occurring when the sealing resin is cured is offset by the concave-shaped warpage of the head substrate and thus the heating elements are arranged in a straight line when the heating elements emit heat at the time of printing.

REFERENCES:
patent: 5223855 (1993-06-01), Ota et al.
patent: 5367321 (1994-11-01), Shigenori et al.
patent: 7256809 (2007-08-01), Goto et al.
patent: 3-236231 (1991-10-01), None

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