Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1986-10-20
1988-07-26
Pellinen, A. D.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346 76PH, 400120, 400225, 400231, 400233, G01D 900
Patent
active
047604050
ABSTRACT:
Method and apparatus for effecting thermal recording on a sheet of a recording medium with the aid of a reusable ribbon which can be repeatedly used for recording a plurality of times. The recording operation is performed during forward movement as well as during return movement of a thermal head while the ink ribbon is wound and unwound. On completion of a predetermined number of recording operations in both direction further recording is stopped and the thermal head is returned to its home position without any displacement of the ink ribbon. Thereafter, the above-mentioned steps are repeated. The reusable ribbon is wound by a length equal to M/N of a line every time recording is performed on M lines in the two-way recording mode, where N represents the number of recording operations for which a portion of the reusable ink ribbon can be repeatedly used. When a non-reusable ink ribbon is used, this fact is detected and the result of detection is discriminated by a CPU to effect unidirectional recording; when a reusable ink ribbon is used, this fact is detected to effect irregular two directional recording, and when no ink ribbon is used, this fact is detected to effect complete two directional recording.
REFERENCES:
patent: 4044883 (1977-08-01), Boehmer
patent: 4511903 (1985-04-01), Miyazaki et al.
patent: 4642658 (1987-02-01), Arakawa
Kanemura Shoji
Nagira Keiji
Canon Kabushiki Kaisha
Ginsburg Morris
Pellinen A. D.
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