Temperature sensing of heater points in thermal print heads by r

Details Temperature sensing of heater points in thermal print heads by r Temperature sensing of heater points in thermal print heads by r

1991-05-20

1993-03-23

Fuller, Benjamin R.

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Thermal recording

B41J 2325

Patent

active

051968657

ABSTRACT:
Beneath its line of heater points, the print head includes a film of thermoresistive material which is used for sensing temperature in the proximity of the heater points, thereby making it possible to obtain a signal which can be used quickly in regulating the quantity of energy delivered to each heater point, thereby making it possible to operate the points at a higher rate because they are subjected to excitation which is regulated.

REFERENCES:
patent: 4449033 (1984-05-01), McClure et al.
patent: 4837586 (1989-06-01), Brownstein
patent: 5036337 (1991-07-01), Rezanka
Patent Abstracts of Japan vol.5, No. 14 (M-52) (686) Jan. 28, 1981 and JP-A-55144178 (Tokyo Shibaura Denki K.K.) Nov. 10, 1980.
Patent Abstracts of Japan vol. 6, No. 23 (M-111) (901) Feb. 10, 1982 and JP A-56142081 (Ricoh K.K.) Nov. 6, 1981.
Patent Abstracts of Japan vol. 11, No. 111 (M-578) (2558) Apr. 8, 1987 and JP A-61255872 (Matsushita Electric Ind. Co. Ltd.) Nov. 11, 1986.
Patent Abstracts of Japan vol. 12, No. 52 (M-668) (2899) Feb. 17, 1988 and A-62199471 (Mitsubishi Electric Corp.) Sep. 3, 1987.

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