Patent ID: 11926500
Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. The sheet post-processor according to claim 3, wherein
the sheet folding device further includes:
a second assist roller pair that is disposed on a downstream side relative to the first folding nip in the conveyance direction on the sheet conveyance path, and

the control portion performs a folding process including:
a step in which the first assist roller pair and the second assist roller pair are rotated forwardly to convey the sheet in the conveyance direction so that the to-be-folded part of the sheet is opposed to the first folding nip;
a step in which, in a state where the first assist roller pair is stopped from rotating, the second assist roller pair is rotated reversely so as to form a deflection in the sheet; and
a step in which, after a lapse of a prescribed amount of time from a start of reverse rotation of the second assist roller pair, the first folding guide is moved to the folding position so that the to-be-folded part of the sheet is guided to the first folding nip and is passed through the first folding nip.