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Xerox 4112/4127 Copier/Printer User Guide
14-3
14. Addendum
Paper path
As media enters the IFM, it is fed to the Decurler for curl
correction. The Decurler has both upper and lower decurl rolls
that apply pressure to the media based upon the following:
• System default
• Decurl selections made in tools-mode on the UI
• Manual selections made at the Decurler Control Panel.
Based on the decurl settings, the Decurler Gate routes the paper
to either the up-curl (Cupped) path, or the down-curl (Bridged)
path. The degree of pressure is applied independently to the
upward and downward Decurler arms.
From the decurler, the print media is cooled and routed from the
IFM to the HCS and other connected finishing devices.
Paper curl
When paper is exposed to heat, the paper loses moisture and
curls toward the heat source. High coverage jobs tend to curl more
due to the toner plastification effect on the paper surface. The
system tries attempts to reduce this by using a mechanical
decurling device, located within the IFM.
Some factors affecting paper curl are:
• The weight of the paper and/or whether it is coated or
uncoated.
• The amount of dry ink/toner and the area being coverage
per sheet.
• How the paper is loaded in the tray.
• The atmospheric conditions of the paper storage room and
at the printer location.
• The amount of heat generated during the fusing
processes.
If the curl is unacceptable, you can change the setting.
From IOT
To HCS /
Finisher
Decurler