Ink-jet printer for improving the freedom of movement of the car

Details Ink-jet printer for improving the freedom of movement of the car Ink-jet printer for improving the freedom of movement of the car

1996-12-18

1999-08-31

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 32, B41J 2165

Patent

active

059460083

ABSTRACT:
An apparatus and method for improving the freedom of movement of a carriage of an ink jet printer while a suction pump of the printer is being driven. The ink jet printer includes a carriage which reciprocates in a direction perpendicular to a direction in which printing paper is conveyed by a paper conveyor, a head, housed on the carriage, for printing characters on the printing paper, and a cap which is joinable tightly to the ink-jet face of the head. The printer further includes a suction pump communicating with the cap, a pump driving mechanism, a motor capable of driving the pump driving mechanism, and a switching gear capable of transferring the motive power of the motor selectively to and away from the pump driving mechanism as controlled by the apparatus. The apparatus includes structure which form paths through which an operating projection movably fitted to the carriage. A changeover holding device has driven portions projecting in the paths in which the operating projection moves, and operates to shift the switching gear to and from a position to enable the motor to drive the suction pump. Specifically, the paths includes operating paths in which the changeover holding device is actuated by the operating projection, and non-operating paths where the changeover holding device is not actuated when the operating projection passes through them.

REFERENCES:
patent: 4745414 (1988-05-01), Okamura et al.
patent: 5379061 (1995-01-01), Yamaguchi et al.
Patent Abstracts of Japan, vol. 18, No. 398 (M-1645), Apr. 26, 1994.

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