Riso MZ770 User Manual page 253

Problem
Paper sticks to the surface of
the Print Drum.
Printed and curled copies are
output.
Paper gets jammed in the ADF
unit (option).
Printed copies are not neatly
aligned in the Paper Receiving
Tray.
RISO EUROPE LIMITED & European Subsidiaries
Possible Cause
The margin at the top of the original or
print is too small.
The print paper is inappropriate.
The original has a solid black portion
at its top.
The print paper is loaded at a
horizontal grain direction.
There is any paper caught in the ADF
unit.
The positions of the Receiving Tray
Paper Guides and the Paper Stopper
are inappropriate.
The Paper Arrangers are not properly
set.
Troubleshooting
Action
The margin of the original (top of the print
in the paper output direction) must be 5
mm at least. Lower the vertical print
position. If this adjustment is impossible,
reproduce an original with enough margin
and perform the master-making operation
again.
p.76
Use the recommended paper.
p.14
If an original has a solid black portion at
the top, printed copies may not properly
output. Replace the original in the reverse
direction and restart the master-making
process.
Load print paper with a vertical grain
direction.
Pull the ADF Original Release Lever to the
right or turn the Release Original Dial and
remove the jammed paper.
ADF Original Release Lever
Original Release Dial
Adjust the Receiving Tray Paper Guides
and the Paper Stopper to the size of
paper. For thick paper, slightly widen them
as necessary.
If you have adjusted the horizontal
position on the Paper Feed Tray, shift the
Receiving Tray Paper Guides in the same
direction.
p.33
Set the Paper Arrangers properly.
p.33
Troubleshooting 251