Riso RZ 970 Series User Manual page 248

Problem
The back of the printed paper
is smudged with ink
Printed images are faint.
Printed texts are blurred.
The position of printed text is
shifted to the left or right.
Possible Cause
The Pressure Roller has been stained
with ink.
The Feed Tray Paper Guides were
not fit to the width of paper at the time
of the master-making process.
Are you using a paper that does not
efficiently absorb ink?
If the machine is not used for an
extended period of time, ink on the
surface of the Print Drum may dry.
This results in faint or blurred printing
just after printing is started.
Faint originals result in faint images.
If the temperature is low (below 15°C)
in a place where the machine is
installed or Ink Cartridges are stored,
ink does not flow smoothly.
The Ink Saving mode has been set.
The left/right position control was not
set to "Centre" when the document
was printed.
Action
Remove the Print Drum and clean the
Pressure Roller.
p.220
If the print position is outside the print
paper, this may cause the Pressure Roller
to be stained with ink.
Be careful when changing the size of print
paper or shifting the print position.
Adjust the Feed Tray Paper Guides to the
width of the paper.
If the Feed Tray Paper Guides are set
wider than the width of the paper, a master
will become wider than necessary.
p.34
The ink did not dry fast enough, marking
onto the reverse side of the next paper.
Either change the paper or try "Ink Saving"
or "Interval" features.
p.68
p.98
The ink on the Print Drum will dry when the
machine is not in use for an extended
period. Printing with dried ink will produce
light or faded copies.
Press the key and make several
copies before making copies to be actually
used. Or use the "Idling Action".
p.135
Increase the scanning level and perform
the master-making operation again.
p.54
For originals written with a pencil, select
the Pencil mode.
p.52
Use the machine after keeping it at room
temperature for a while.
p.10
With the "Ink Saving" mode selected, the
ink on printed copies is fainter than usual.
p.68
First lower the Standard Feed Tray, then
adjust the position and print a proof copy
to check the new position.
p.94
Troubleshooting
247
Troubleshooting