6-7
Problems in the Knife Section
6-7-1 The sheets are scratched or smeared
Check
The hold-down
roller pressure is
too strong.
6-7-2 The fold knife creases the sheets
Check
The fold knife
roller pressure is
too strong.
6-7-3 The sheets are not folded exactly on the perforation line
Check
The perforation
blade is not
aligned with the
knife.
The knife guides
are positioned
incorrectly.
The transport roll-
ers are removed.
112
Cause and Recovery
- Decrease the pressure of the hold-down
roller nearest to the perforation/scoring sec-
tion.
13071
60701A1
Cause and Recovery
- Widen the knife roller gap (gap #9).
23051
60502B1
Cause and Recovery
1. Align the perforation blade with the knife.
2. Adjust the register guide to align the sheet
with the perforation blade.
23051
60703A1
- Feed one sheet in Setup Mode and adjust
the knife guide positions.
23051
60703B1
- When a sheet is folded by the knife, the
transport rollers resist. Remove the transport
rollers.
23051
60703C1
Page
page 90
Page
page 77
Page
page 67
page 70
page 90