Sheet processing apparatus

Details Sheet processing apparatus Sheet processing apparatus

2009-09-29

2011-12-27

Nicholson, III, Leslie A (Department: 3651)

Sheet-material associating

Associating or disassociating

Sheet associating

C270S058070, C270S058020, C270S058110

Reexamination Certificate

active

08083220

ABSTRACT:
A sheet processing apparatus capable of reliably superposing a sheet to be buffered and a following sheet in a manner displaced by an allowable displacement amount, thereby making it possible to suppress generation of misalignment. A sheet discharged from an image forming apparatus is temporarily held back, and a following sheet is superposed on the held-back sheet in a state displaced in a conveying direction. A length in the conveying direction of the sheet to be held back and a length in the conveying direction of a sheet bundle of the superposed sheets are measured. A displacement amount provided between the superposed sheets, computed as a difference between the measured length of the sheet and the measured length of the sheet bundle, is adjusted such that the displacement amount becomes a target displacement amount.

REFERENCES:
patent: 7413178 (2008-08-01), Fujii et al.
patent: 2007-070079 (2007-03-01), None

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