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Managing Paper Curl
To remove upcurl or downcurl (an upwards or downwards bend)
in the paper in the stacked output, your Nuvera system provides
the ability for you to make the necessary adjustments.
If your configuration does not include a Multifunction Finisher
(MFF), you will use the Sheet Enhancement Module (SEM) and
the FreeFlow Print Server Adjust Decurler feature to achieve
sheet flatness in the stacker. If your configuration does include a
MFF, you will adjust only the Decurler Knob located in the print
engine.
What Would Cause Paper to Curl?
Your paper supply is exposed to a humid environment,
or otherwise stored improperly
You have begun using lighter-than-normal paper
stocks (lightweight paper), carbonless stock, or poor
quality recycled paper
You are experiencing jams in your finishing device,
poor set registration or stacking problems.
Paper left in the tray or left out unwrapped may require
a change in the SEM decurl setting.
Some papers require a different decurl setting for one-
sided vs. two-sided jobs.
NOTE: Storing or using paper under humid conditions
may increase paper curl. See
Paper.
Do not use any paper that is not suitable for the
system. For details on accepted papers, see
Supported
How to Manage Paper Curl on Systems
without a SEM
All Xerox Nuvera systems are equipped with a manual Decurler
Adjustment Knob, or dial, located near the fuser in the print
engine. Adjusting the Decurler Knob minimizes or eliminates
curl in the stacked output.
However, only adjust the Decurler Knob to achieve paper
flatness if your Nuvera system includes a MFF.
How to Manage Paper Curl for Simplex Jobs
1. Open the right door of the Xerox Nuvera print engine
module.
2. Locate the Decurler Knob near Area 4 of the print
engine paper path.
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How to Manage Paper Curl using the
Sheet Enhancement Module
The Xerox Nuvera systems (except for systems with a MFF)
are equipped with a Sheet Enhancement Module located to
the right of the print engine. This module is designed to
automatically remove upcurl or downcurl in stacked paper
as it passes from the print engine through the SEM.
If you notice excessive upcurl or downcurl in the paper in
the stacked output, adjust the Sheet Enhancement Module's
setting at the FreeFlow Print Server interface to achieve the
amount of sheet flatness you need. By ensuring sheet
flatness, the Sheet Enhancement Module can prevent
problems, such as paper jams and skew, and improve print
performance.
NOTE: For all systems with a SEM, it is
recommended that you only use the Sheet
Enhancement Module to remove curl and do not
adjust the Print Engine Decurler Knob. Make sure
the Decurler Knob remains set at MIN.
Use Automatic or Manual Mode
The amount of decurl applied to paper passing through the
Sheet Enhancement Module is set at the FreeFlow Print
Server interface from the Printer menu.
The FreeFlow Print Server provides the option of operating
the SEM in one of two modes:
Auto Decurl Mode (default) - For optimal print
productivity, use Auto Decurl Mode. When
selected, the system automatically calculates the
amount of decurl to apply using the target values in
the NVM and the paper tray programming to best
position the decurler rolls. You must have set the
correct paper properties in the Paper Tray window
for this mode to work accurately.
Manual Decurl Mode - Adjusts the amount of
decurling based strictly on the user's decurl setting.
Select when you want to manually adjust the
amount of decurl to apply.
How to Set the Auto Decurl Mode for Simplex or
Duplex Jobs
Typically you will only need to select the Auto Decurl Mode.
The system will automatically calculate the amount of decurl
to apply to your job. In this mode you can still use a slide bar
to make further setting adjustments.
If you are in the process of running a job and want to switch
from using Auto Mode to Manual Mode, you must first pause
the job.
1. The Decurler Adjustment Knob located in the print
engine should be set to MIN.
2. From the menu bar, select [Printer: Adjust
Decurler]. The Adjust Decurler window displays.
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