Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1995-11-20
1999-02-16
Tso, Edward H.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
B41J 214
Patent
active
058725814
ABSTRACT:
A recording apparatus includes a carriage capable of mounting and removing a head member, one side portion provided with a positioning unit for the carriage unit to position the head member, a head holding unit for holding the head member, being relatively movable with respect to the one side portion, an operational unit that engages with the head holding unit to move such head holding unit relatively with respect to the one side portion, a first biasing device for biasing the operational unit in the same direction as that in which the head holding member approaches the one side portion, a stopper arranged on the carriage for regulating the biasing force of the first biasing device in a given position, at the same time, causing the biasing force of the first biasing device not to be exerted on the operational unit in the given position, and a second biasing device for biasing the head holding unit in the direction in which such unit parts further away from the one side portion. With the structure thus arranged, a recording head can be removed from the carriage without any additional power from the user or the like once the operational unit is allowed to move to a given position where the stopper acts. The head removal is reliably executable just by one action.
REFERENCES:
patent: 4401990 (1983-08-01), Aiba et al.
patent: 4426165 (1984-01-01), Irro
patent: 5631690 (1997-05-01), Tashiro et al.
Kawarama Makoto
Kinoshita Hiroyuki
Ming Tan At
Saito Hiroyuki
Shinmachi Masaya
Canon Kabushiki Kaisha
Tso Edward H.
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