Xerox 4112-4127 Enterprise Printing System-4612 - Manual (Page 195)

Addendum
Xerox 4112/4127 EPS 9-19
User Guide
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
3. Selecting the Tools tab
4. Selecting System Settings>Common Service Settings>Maintenance and
5. Selecting Decurler Setup
Preset Decurler settings
Your system is also designed with several automated presettings for controlling paper curl.
When using these settings, the machine automatically sets the amount of curl correction at the
Decurler. Therefore, if paper curl is a problem, use one of the preset Decurler settings in order to
eliminate the problem.
When the media passes through the decurler, you are notified of the current amount of curl
correction by-way-of the various LEDs on the Interface Module Control Panel. In addition to
Auto Decurler mode, you can manually select curl correction from the Interface Module Control
Panel.
Manual Decurler
The Manual Decurler mode has seven levels of curl correction available at the IM Control Panel:
three levels of Up-curl correction and three levels of Down-curl correction, plus a No correction
level.
The amount of curl correction is changed by selecting a related button. The current selected
amount of curl correction is displayed by the Control Panel LEDs.