Erasing device

摘要

An erasing device of one embodiment includes a conveyance unit that conveys a sheet; a pair of rotating brushes is provided corresponding to both side portions in a width direction perpendicular to a sheet conveyance direction of the sheet conveyed by the conveyance unit, the rotating brushes being provided to oppose to each other, nipping the conveyed sheet, the rotating brushes rotating in the same direction as the sheet conveyance direction such that a circumferential speed of the brush tip has a higher speed than a conveyance speed of the sheet, the rotating brushes rolling and correcting a corner fold portion which occurs on the sheet conveyed by the brush tip portion while rotating; and an erasing unit is provided downstream in the sheet conveyance direction than the rotating brush, the erasing unit erasing an image which is formed on the sheet.

主权项

1. An erasing device comprising:
a conveyance unit that conveys a sheet along a conveyance path; a pair of rotating brushes provided on opposite sides of the conveyance path and opposed to each other and positioned in a width direction perpendicular to a conveying direction of the sheet conveyed by the conveyance unit, the rotating brushes being configured to rotate so that a brush tip portion closest to the conveyance path has a tangential velocity in the same direction as the conveying direction and the tangential velocity of the brush tip portion being greater than a conveyance speed of the sheet so that a corner fold portion which occurs on the sheet is contacted and corrected by the rotating brush tip portion; a pair of correction guides provided on opposite sides of the conveyance path and opposed to each other and on the upstream side in the conveying direction from the rotating brushes, the correction guides being shaped so that first ends of the correction guides on the upstream side in the conveying direction define a first width of the conveyance path between the first ends, and second ends of the correction guides on the downstream side in the conveying direction define a second width of the conveyance path between the second ends, the second width being larger than the first width; and an erasing unit provided downstream in the sheet conveyance direction than the rotating brush, the erasing unit erasing an image which is formed on the sheet.