Incremental printing of symbolic information – Thermal marking apparatus or processes – Record receiver driving means
Patent
1996-01-31
1998-09-01
Tran, Huan H.
Incremental printing of symbolic information
Thermal marking apparatus or processes
Record receiver driving means
347197, B41J 232, B41J 25304
Patent
active
058017445
ABSTRACT:
A thermal printer is provided which is capable of easily controlling the operations of a carriage and conveyance rollers by only one drive motor thereof and which enables the size and cost to be reduced. A thermal printer including a carriage capable of reciprocatively moving along a platen when a carriage drive shaft is rotated; a thermal head provided for the carriage to oppose the platen; an urging member for urging the thermal head to the platen; a cam portion for separating the thermal head from the platen against the urging force of the urging member when the thermal head has passed a printable range as a result of movement of the carriage; conveyance rollers to be rotated when a roller drive shaft is rotated and arranged to convey a recording medium; a drive motor for rotating the carriage drive shaft and the roller drive shaft; and drive-force transmission device which always transmits the drive force of the drive motor to the carriage drive shaft and which transmits the drive force of the drive motor to the roller drive shaft only when the carriage is moved in either direction and when the thermal head has passed the printable range.
REFERENCES:
patent: 4401391 (1983-08-01), Kawai et al.
patent: 4420763 (1983-12-01), Cuel et al.
patent: 4444521 (1984-04-01), Rickard et al.
patent: 4475825 (1984-10-01), Hashimoto
patent: 4644371 (1987-02-01), Matsuura et al.
patent: 4654673 (1987-03-01), Yanata et al.
patent: 4752786 (1988-06-01), Inoue et al.
patent: 5008684 (1991-04-01), Kurafuji
Iwane Yasuhiko
Mori Masahiko
Taniguchi Jun
Alps Electric Co. ,Ltd.
Tran Huan H.
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