Drive transmission switching mechanism for switching between pap

Details Drive transmission switching mechanism for switching between pap Drive transmission switching mechanism for switching between pap

1996-10-31

1999-10-26

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2165

Patent

active

059715200

ABSTRACT:
A drive transmission mechanism in a recording apparatus in which after a drive force transmission gear is meshed with a negative pressure gear, the meshing state of both the gears can be held during maintenance operation irrespective of movement and position of a carriage. When a rib of the carriage kicks a kick portion, a drive force distributing gear (a drive force transmission gear) is released from a pressing force of an idle kicker and slidably moved by being biased by a compression spring. In a notch (cutaway) portion, meshing teeth are meshed with a purge gear (negative pressure gear). By this meshing, when the purge gear starts rotate, even if an idle kicker presses the meshing teeth during rotation, a collar portion suppresses the sliding movement of the meshing teeth, unless the notch portion rotates to a position corresponding to the meshing teeth (a home position), so that the purge gear is not disengaged from the meshing teeth.

REFERENCES:
patent: 5432538 (1995-07-01), Carlotta
patent: 5437444 (1995-08-01), Kawakami et al.
patent: 5742316 (1998-04-01), Hirano et al.

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