Incremental printing of symbolic information – Thermal marking apparatus or processes – Record receiver and transfer medium feeding or driving means
Patent
1993-12-02
1996-05-21
Le, N. V.
Incremental printing of symbolic information
Thermal marking apparatus or processes
Record receiver and transfer medium feeding or driving means
347218, B41J 1300
Patent
active
055194281
ABSTRACT:
Thermal image recording apparatus which can be set for recording on any of a plurality of different types of recording sheets, e.g. opaque or transparent, and wherein a sheet is fed by a suitable sheet feeder, preferably a rotatably drive sheet feeding rollers, from a supply a cassette or other supply source to a printing head for recording thereon, has a sensor for detecting the type of recording sheet used for the recording and for generating a control signal which is effective in the event a given sheet sensed by said sensor is of a type different from the type for which the apparatus is set, to disable the sheet feeding rollers from further feeding of the sheet to the printing head. Preferably, in the event of a mis-match between the type of sheet being fed and the machine setting, the direction of the sheet feeder is reversed and the mis-matched sheet is returned to its supply cassette. The cassette can then be replaced with a cassette with the proper type of sheets or the machine setting altered to correspond to the type of sheet actually in the supply cassette.
REFERENCES:
patent: 4795999 (1989-01-01), Takahashi et al.
patent: 4900173 (1990-02-01), Okamura
patent: 4928951 (1990-05-01), Fukui
patent: 5029837 (1991-07-01), Uchiyama
patent: 5039080 (1991-08-01), Kato et al.
patent: 5220352 (1993-06-01), Yamamoto et al.
Agfa-Gevaert N. V.
Daniel William J.
Le N. V.
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