Printer having compact thermal head

Details Printer having compact thermal head Printer having compact thermal head

2006-12-05

2006-12-05

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

Reexamination Certificate

active

07145584

ABSTRACT:
A printer having a thermal head disposed such that when heater elements are in contact with a platen, the following formulas are satisfied: H1≦H≦Hmax; Hmax=(H1+H2)=L tan(θ1+θ3); and θ′=(θ2−θ1)=(3°±1°). Length L is between a first line perpendicular to a top-substrate-surface and extending through a contact point between the heater elements and the platen, and a second line perpendicular to the top-substrate-surface and extending through a peak of a sealing member; height H is from the top-substrate-surface to the peak; height H1is from the top-substrate-surface to a tangent between the platen and the heater elements; height H2is from the tangent to a conveying path of a recording medium; angle θ1is between the tangent and the top-substrate-surface; θ2denotes a slope angle of a projection from the tangent; angle θ3is between the tangent and the conveying path; and θ′ denotes a head-returning angle.

REFERENCES:
patent: 6339443 (2002-01-01), Nakanishi et al.
patent: 6437813 (2002-08-01), Nishimura
patent: 6867792 (2005-03-01), Hoshino et al.
patent: 6972782 (2005-12-01), Terao et al.
patent: 402231153 (1990-09-01), None
patent: 2002-254717 (2002-09-01), None

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