Xerox Versant 3100 Press User Manual page 135

Suggested Solutions
• Some types of coated paper slip and skew, thereby misregistering the image on the
output prints. In this case, you may need to increase the Aligner Roll Pressure to apply
more force to hold down the paper to compensate for the slippage and skewing.
• Some lightweight papers may have too much roll pressure applied to them, causing
edge damage to the output prints. In this case, you may need to decrease the roll
pressure to apply less force to hold down the paper.
• To change the Aligner Roll Pressure setting, perform the following:
a. Switch On the Pre Gate Roll Adjustment.
Important
This option must be On to allow for the custom setting of the Aligner Roll Pressure
option.
• Access the option from Stock Library Manager > Stock Properties > Advanced
Stock Setup > Pre Gate Roll Adjustment.
• Select On under the Pre Gate Roll Adjustment from the drop-down menu.
b. Adjust the Aligner Roll Pressure.
• Access the feature from Stock Library Manager > Stock Properties > Advanced
Stock Setup > Aligner Roll Pressure.
• Based on the output, increase or decrease the Aligner Roll Pressure in increments
of five or ten.
• After each incremental adjustment, run test prints and evaluate the output prints
to determine if additional adjustments are required.
4. Change the Regi-Loop setting.
Note
Use Regi-Loop only if Alignment Profile and/or Aligner Roll Pressure did not correct re-
gistration and/or skew problems.
• Use this feature to adjust Regi-Loop.
• When paper feeds through the press, it stops once and pressure is applied in order to
correct registration and skew. The loop created when paper is stopped and pressured is
Regi-Loop.
- To correct for registration and skew, and if the degree of skew varies from sheet to
sheet, increase the Regi-Loop value to increase pressure on the Lead Edge (LE) of
the paper. Increasing the value too much may cause unintended folds or scratches
on the Lead Edge paper.
- In hot and humid environments, decrease the Regi-Loop value to lower the pressure
on the Lead Edge of light weight paper to avoid ripping the paper.
• This feature is accessed fromStock Library Manager > Stock Properties > Advanced
Stock Setup > Regi-Loop.
• Based on the output, increase or decrease the Regi-Loop in increments of 0.3 mm. After
each incremental adjustment, run test prints and evaluate the output to determine if
additional adjustments are required.
• If feeding paper from tray 1, 2 or 3 and repeated Regi-Loop adjustments do not make
any improvements in a registration problem, return the Regi-Loop value to its default,
and adjust the Pre Gate Roll Adjustment setting. Refer to
Adjustment setting.
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Xerox Versant 3100 Press
User Guide
Troubleshooting
Change the Pre Gate Roll
7-17