Service manual

4 FOLDING SECTION
2-14
DUPLO DF-755 86V-M12D0-0
4.1.2 Folding operations
a. Outline
First folding
1) Paper conveyed by the idler roller and center press roll touches the folding stopper of
the first folding plate.
2) The paper is continuously fed touching the folding stopper of the first folding plate and
slacks.
3) The slackened part of the paper is sandwiched between the center press roll and first
press roll.
Second folding
4) The paper is conveyed by the center press roll and first press roll, and touches the
folding stopper of the second folding plate. (For single fold, paper hits the switching
shaft and is conveyed to the paper ejection section by the center press roll and second
press roll.)
5) The paper is continuously fed touching the folding stopper of the second folding plate
and slacks.
6) The slackened part of the paper is sandwiched between the second press roll and center
press roll. (Second folding)
Paper ejection
7) Paper is conveyed to the paper ejection section by the second folding roller and center
press roll.