| 摘要 |
<p>PURPOSE:To prevent a sheet from making a skew by displaying carrier work by rotation of a bar type roller member even against a small size sheet in a device constituting a carrier roller device of a drive roller and a bar type pinch roller. CONSTITUTION:A carrier roller device 10 arranged on a sheet carrier passage is constituted of a drive roller 11 provided with roller members 15-19 in a skewered form on a drive shaft 12 and a bar type roller member 20 provided with a round bar type member free to rotate through a bearing which are arranged to face against each other. A friction member 25 constituted by winding rubber, etc., around it is arranged on the bar type roller member 20 by corresponding with a carrier standard line K of the sheet carrier passage and the roller member 19 on the opposite side, and rotation of the roller members is transmitted to the bar type roller member through the friction member 25. Consequently, in the case where nip pressure is low against the standard line of a small size sheet and the side part on the opposite side, precise carrier work is imparted.</p> |
