Paper Path; Paper Curl; Auto Decurler - Xerox 4112 User Manual

Addendum

Paper path

From IOT
As media enters the IM, 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 IM 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
IM.
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.

Auto Decurler

In Auto Decurler mode, appropriate decurl settings are selected from the Tools Mode on the UI
by:
1. Logging on as Administrator
2. Pressing the Machine Status button
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Xerox 4112/4127 Copier/Printer
User Guide
To HCS /
Finisher
Decurler