| 摘要 |
<p>PURPOSE:To separate a sheet of paper attracted to a drum by making a sleeve, having an opening in direction of the photosensitive drum, stick fast to the inner surface of a conveyor roller with plural pieces of air holes piercing through the outer circumferential surface from a hollow hole in the central part, and installing a fan in the sleeve. CONSTITUTION:A paper conveyor roller 3 has a hollow hole 3a in the central part, and there are provided plural pieces of air holes 3b piercing through the outer circumferential surface from the inner circumferential surface of this hollow hole 3a. The paper conveyor roller 3 works to rip off a sheet of paper being attracted to a photosensitive drum 1 as rotating at peripheral velocity equal to that of this drum 1. A sleeve 4 is joined close to an inner circumferential surface of the hollow hole 3a, and the sleeve 4 is provided with an opening only toward the drum 1, while a fan 6 is installed in the inner part. Consequently air intake by this fan 6 becomes effective only toward the drum 1, thereby ripping off the paper attracted to the drum 1 while it is easily separated from the conveyor roller 3 and fed to a paper guide 7.</p> |
