Sheet member position correcting device and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsTomoyoshi Yamazaki, Rie Ohtsuka
Life of this patent
Estimating the term…
Abstract
In a sheet member position correcting device and an image forming apparatus according to the present invention, a controller moves a driving roller toward one end side of the width direction by using a moving unit until a driven roller the position of which is deviated in the width direction with respect to the driving roller abuts on a stopper portion, and, subsequently, the controller further moves the driving roller to a predetermined position toward one end side of the width direction by using the moving unit in a state where the driven roller abuts on the stopper portion to correct the position of the driven roller in the width direction with respect to the driving roller.
Claims18
A sheet member position correcting device configured to move a sheet member in a width direction orthogonal to a conveying direction and correct a position of the sheet member in the width direction, the sheet member position correcting device comprising:
- a driving roller configured to be driven by a driving unit which is controlled by a controller to rotate and be able to be moved in the width direction by a moving unit which is controlled by the controller;
- a driven roller configured to be driven to rotate following the driving roller rotatably driven by the driving unit while pressing against the driving roller and nipping the sheet member, and be able to be driven in the width direction following the driving roller moved by the moving unit in the width direction;
- and
- a stopper portion configured to be formed to abut on the driven roller and restrict a moving range of the driven roller in the width direction,
- wherein, when the sheet member is not nipped between the driving roller and the driven roller, the controller moves the driving roller toward one end side of the width direction by using the moving unit until the driven roller a position of which is deviated in the width direction with respect to the driving roller abuts on the stopper portion, and, subsequently, the controller further moves the driving roller to a predetermined position toward the one end side of the width direction by using the moving unit in a state where the driven roller abuts on the stopper portion to correct the position of the driven roller in the width direction with respect to the driving roller.
An image forming apparatus comprising a sheet member position correcting device configured to move a sheet member in a width direction orthogonal to a conveying direction and correct a position of the sheet member in the width direction, wherein
- the sheet member position correcting device comprises,
- a driving roller configured to be driven by a driving unit which is controlled by a controller to rotate and be able to be moved in the width direction by a moving unit which is controlled by the controller;
- a driven roller configured to be driven to rotate following the driving roller rotatably driven by the driving unit while pressing against the driving roller and nipping the sheet member, and be able to be driven in the width direction following the driving roller moved by the moving unit in the width direction;
- a stopper portion configured to be formed to abut on the driven roller and restrict a moving range of the driven roller in the width direction, and
- wherein, when the sheet member is not nipped between the driving roller and the driven roller, the controller moves the driving roller toward one end side of the width direction by using the moving unit until the driven roller a position of which is deviated in the width direction with respect to the driving roller abuts on the stopper portion, and, subsequently, the controller further moves the driving roller to a predetermined position toward the one end side of the width direction by using the moving unit in a state where the driven roller abuts on the stopper portion to correct the position of the driven roller in the width direction with respect to the driving roller.
Dependencies are inferred from the claim text.