• If buckling occurs with thin paper in environments such as high temperature and high humidity,
then reduce the amount of loop in the minus (-) direction.
Pre Gate Roll Adjustment
This will adjust the pregate roll nip pressure. Choose one of three options:
•
System Default
: This is an automatic setting which uses a preset system Look-Up Table (LUT)
that assigns nip settings for each g/m
2
(weight) stock type.
•
On
: This option enables custom settings when the
Aligner Roll Pressure
option is used. Before
using
Aligner Roll Pressure
, you must first switch
On
this setting.
•
Off
: No nip setting is used.
Test Print
After making adjustments to any of the Advanced Stock Setup options, always run test prints before
running a job. Running test prints will ensure whether or not the printed output is acceptable and if
more changes should be made before running a job. For more information and instructions, refer to
Primary Transfer Current Adjustment
The purpose of this adjustment is to correct black (K) line smears at lead edge area of the print
output. The smears occur at approximately 10 mm from the lead edge. Black (K) line smears can be
corrected by increasing the primary (first) transfer current.
This smear occurs primarily with black (K); however, if other image quality problems occur, such as
ghosting, the other colors, Cyan (C), Magenta (M), and Yellow (Y), may also be adjusted to correct
these problems.
Secondary Transfer Voltage Adjustment
The purpose of this adjustment is to correct for mottle (uneven toner coverage) and color shift
(inconsistent color). These image quality issues can occur on heavy-weight stocks. This adjustment
creates and saves an image transfer adjustment to the Bias Transfer Roll in the press. The Bias
Transfer Roll is where the image is transferred from the belt to the paper. Once created for a stock, the
adjustment is saved and can be selected for that stock for any tray.
The adjustment can be performed by selecting either the
Auto
or
Manual
buttons.
•
Auto
button: The adjustment is done automatically by the press and eliminates the need for you
to interpret printed targets and manually enter adjustment values. This saves time and avoids
errors. Usually
Auto
fixes most image quality issues and should be used before performing a
manual adjustment.
•
Manual
button: The user must manually perform the adjustment and step-by-step instructions for
printing test patterns, interpreting the printed targets on those patterns, and then manually
entering the adjustment values. Use the
Manual
adjustment option only when the
Auto
adjustment does not provide the desired output.
For more information, refer to
Secondary Transfer Voltage Adjustment
. Also refer to these procedures:
Using the Auto Adjustment Option for Secondary Transfer Voltage Adjustment
and
Adjustment Option for Secondary Transfer Voltage Adjustment
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