POST-PROCESSING DEVICE AND IMAGE FORMING APPARATUS

摘要

A post-processing device for applying a post-process to one or more sheets outputted by a device of a preceding stage, a printer for example, is provided. The post-processing device includes: an alignment mechanism for applying an alignment process for arranging a current sheet bundle; an output mechanism for outputting the current sheet bundle; a prestacking mechanism; and a control unit. The control unit performs a control in such a manner that at least a part of operation of the alignment mechanism or of operation of the output mechanism is switched from a normal operation mode for operation at a normal operation speed to a high-speed operation mode for operation at an operation speed greater than the normal operation speed when a time to completely output the current sheet bundle is later than a time to completely perform prestacking the next sheet bundle.

主权项

1. A post-processing device for applying a post-process to one or more sheets outputted by a device of a preceding stage, the post-processing device comprising:
an alignment mechanism which includes a sheet rest in which one or more sheets outputted by the device of the preceding stage are put, and applies an alignment process for arranging a current sheet bundle which is a sheet bundle of one or more sheets and is put in the sheet rest; an output mechanism configured to output the current sheet bundle that has been subjected to the alignment process by the alignment mechanism outside the sheet rest; a prestacking mechanism configured to perform prestacking of temporarily keeping, in an upstream of the sheet rest, a next sheet bundle which is the sheet bundle which is outputted by the device of the preceding stage before the output mechanism outputs the current sheet bundle, and to put, in the sheet rest, the next sheet bundle that has been subjected to the prestacking after the current sheet bundle is outputted; and a control unit; wherein the control unit performs a control in such a manner that at least a part of operation of the alignment mechanism or of operation of the output mechanism is switched from a normal operation mode for operation at a normal operation speed to a high-speed operation mode for operation at an operation speed greater than the normal operation speed when a time to completely output the current sheet bundle is later than a time to completely perform prestacking the next sheet bundle.