WILD MOVEMENT PREVENTION DEVICE FOR PAPER FEED DRIVE ROLLER IN RECORDER

摘要

PROBLEM TO BE SOLVED: To suppress wild movement of a paper discharge roller to prevent degradation of print image quality when continuing the printing after the termination of paper separates from a paper feed roller, by suppressing wild movement of the paper feed roller in the instance of the separation of the termination of the paper from the paper feed roller.;SOLUTION: This wild movement prevention device has a friction bush 59 with a friction face 63 fixed on a shaft body 37 of a paper feed drive roller 15 with relative rotation to the shaft body 37 restricted; a means 53 including a slide face 65 contacting with the friction face 63 in a pressure contact state; and drive wheel trains 33, 35 for transmitting drive force to the paper feed drive roller 15 and a paper discharge drive roller 29 from a single drive source 32. Frictional force between the friction face 63 and the slide face 65 can suppress the wild movement of the shaft body 37 of the paper feed drive roller 15 caused by backlash of gears in the drive wheel trains 33, 35 in the instance of release of the termination of the paper from a pinch by the paper feed roller 19.;COPYRIGHT: (C)2002,JPO