Patent ID: 6244767
Filing Date: 2001-06-12
Classification: B65H

Abstract:
An image forming apparatus, comprising;a tractor wheel conveying a series of printable medium to a printing area and retreating the series of printable medium;a tractor shaft pivoting said tractor wheel, feeding the series of printable medium by a feeding device having a certain backlash in an initial pivotal movement of said tractor wheel and said tractor shaft;a first roller feeding or retreating the series of printable medium conveyed by the feeding device by a forward and backward rotation of said first roller, said first roller ejecting said printable medium from said image forming apparatus;a shaft providing rotational force to said first roller;a first gear causing a backlash at said shaft and said first roller in the initial pivotal movement of said first gear, said first gear providing the rotational force to said shaft, a hole formed in a certain location of said first gear, the hole accommodating said first gear to race and have a backlash at said first gear in an initial pivotal movement of said first gear; anda shaft pin secured on said shaft after being passed through the hole, said shaft pin transmitting the rotational force of said first gear to said shaft, the rotational force driving said shaft.