| 摘要 |
<p>PURPOSE:To provide a mechanism to unwind the slack part of a paper sheet through reversing of a roll paper during unwinding after the roll paper is cut, in an image forming device wherein a large size recording paper sheet is produced by using the roll paper. CONSTITUTION:In a roll paper holding part for supporting a roll paper 2, a support member arranged to an axle 23 is integrally rotated in a state to be inserted in a sheet pipe for the roll paper 2. The shaft 23 is supported to a disc 24 and supported in a state that the protrusion 24 of the axle 23 is locked to the pin 34 of a support arm member 32. The support arm member 32 is energized clockwise around an axle 33 through the force of a spring 35. When a slack is left at the roll paper 2, the arm member 32 is rotated through the force of the spring 35 to rotate the roll paper 2 clockwise. A slackened part is unwound around the roll paper 2 and the slack part is removed.</p> |
