Sheet folding method, sheet folding apparatus, sheet finisher equipped therewith and image forming apparatus for used with the sheet finisher
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United States of America Patent
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-
May 4, 2004
Grant Date -
Feb 27, 2003
app pub date -
Aug 14, 2002
filing date -
Aug 23, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sheet folding method has the first introduction process to introduce a sheet between the first rotary folding body and the first rotary pressure-contact body, and between the second rotary folding body and the second rotary pressure-contact body, respectively; the first folding process in which, under the condition that the first and second rotary folding bodies are in contact with the first and second rotary pressure-contact bodies, respectively, and rotated in the reversal direction to each other, thereby the conveying force of reversal directions to each other is acted and the sheet is bent and a fold is formed, and the fold of the sheet is conveyed between the first and second rotary folding bodies thereby the sheet is folded; the second introduction process to introduce the sheet folded by the first folding process using the similar structure to the first introduction process; and the second folding process using the similar steps to the first folding process.
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