Sheet aligning device and image forming apparatus including the same

摘要

A sheet aligning device may include a sheet conveyance path; a detecting unit configured to detect a side edge of a sheet being conveyed in the sheet conveyance path; a stopper on an upstream side of the detecting unit and configured to open/close so as to allow/prevent passage of the sheet and to position a leading edge of the sheet; a first conveying unit on an upstream side of the stopper, the first conveying unit including a pair of first rollers configured to come in contact with/separate from each other; a second conveying unit on an upstream side of the first conveying unit, the second conveying unit including a pair of second rollers configured to come in contact with/separate from each other; and a horizontal movement unit configured to move the pair of first rollers in an axial direction based on a detection result output by the detecting unit.

主权项

1. An image forming apparatus comprising:
a sheet conveying path through which a sheet is conveyed to an image transfer unit; a lateral registration unit configured to move in a lateral direction to correct a misalignment of the sheet in the lateral direction; and a conveying unit arranged downstream from the lateral registration unit, the conveying unit configured to convey the sheet after the misalignment in the lateral direction is corrected by the lateral registration unit, wherein the lateral registration unit includes a pair of lateral registration rollers that is configured to nip the sheet and move in the lateral direction from a home position, the pair of lateral registration rollers configured to separate from each other after the sheet whose misalignment in the lateral direction is corrected by the lateral registration unit reaches the conveying unit, the pair of lateral registration rollers configured to move to the home position after separating, the pair of lateral registration rollers configured to remain separated during the move to the home position and while the sheet is passing therethrough.