Drive roller releasing apparatus for ink-jet printer

Details Drive roller releasing apparatus for ink-jet printer Drive roller releasing apparatus for ink-jet printer

2006-02-21

2006-02-21

Shah, Manish (Department: 2853)

Incremental printing of symbolic information

Ink jet

Medium and processing means

C347S101000, C400S636000

Reexamination Certificate

active

07001017

ABSTRACT:
A drive roller releasing apparatus for an ink-jet printer includes a drive roller separating mechanism at a drive roller to transport a printing material to a feed roller, to separate a pinch roller from the drive roller, and a controller to control the drive roller separating mechanism to separate the pinch roller from the drive roller when the printing material is moved into the feed roller. The drive roller separating mechanism includes a releasing cam to contact a pinch roller shaft. The cam surface is such that the pinch roller is gradually separated from the drive roller due to a rotation of the drive roller shaft. A one-way clutch allows the releasing cam to be rotated in one direction, and a torsion spring to bias the releasing cam to rotate in one direction in order for the cam surface thereof to be contacting with the pinch roller shaft.

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