Sheet processing apparatus having first and second aligners controlled based on combination of predetermined job parameters, and image forming system having sheet process apparatus

摘要

A sheet processing apparatus including: a first aligner to push lateral edges of a sheet inward across a width direction of the sheet conveyed from an upstream side for alignment of the sheet, the width direction being orthogonal to a moving direction of the sheet; a second aligner to abut a front edge of the sheet conveyed from the upstream side for a predetermined period of time for alignment of the sheet; a first aligner driver to drive the first aligner; a second aligner driver to drive the second aligner; and a controller to control operations of the first aligner driver and the second aligner driver, wherein the controller activates or inactivates the first aligner driver and the second aligner driver depending on a predetermined parameter on the conveyed sheet.

主权项

1. A sheet processing apparatus comprising:
a first aligner to push lateral edges of a sheet inward across a width direction of the sheet conveyed from an upstream side for alignment of the sheet, the width direction being orthogonal to a moving direction of the sheet; a second aligner to abut a front edge of the sheet conveyed from the upstream side for a predetermined period of time for alignment of the sheet; a first aligner driver to drive the first aligner; a second aligner driver to drive the second aligner; and a controller to control an operation of the first aligner driver and an operation of the second aligner driver according to a combination of a plurality of predetermined parameters which is set for each job, wherein: the controller activates or inactivates the first aligner driver and the second aligner driver depending on the combination of the plurality of predetermined parameters which is set for each job, the controller determines whether a basis weight of the conveyed sheet is higher than a predetermined weight on the basis of one of the predetermined parameters, and the controller further determines whether a condition is met with respect to another one of the predetermined parameters, if the basis weight of the sheet is higher than the predetermined weight, and depending on a determination result with respect to the other one of the predetermined parameters, the controller activates the first aligner driver alone, and if the basis weight of the sheet is not higher than the predetermined weight, and depending on the determination result with respect to the other one of the predetermined parameters, the controller activates both the first aligner driver and the second aligner driver.