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Apr 02
6-10 Compuprint PageMaster 402N User Guide
Solving Duplexer Problems
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2. Test the printer by allowing it to run for a few days without the duplexer installed.
If the printer operates erratically when the duplexer is not installed, refer to “Printer Operates
Erratically” on page 5-36.
If the printer does not operate erratically when the duplexer is not installed, reinstall the
duplexer and proceed to the next step.
3. Open and then firmly close all of the doors and covers.
Interlock switches monitor the position of printer doors and covers. When a door is closed,
the interlock switch is activated and the duplexer can operate. When a door is open, the inter-
lock switch is not activated and the duplexer cannot operate. If a door is not firmly closed, the
interlock switch can bounce between being activated and being not activated - confusing the
system and causing erratic operation.
4. Reinstall the printer driver software.
The printer driver software running on the host computer may be damaged. Reinstalling the
software is an easy and inexpensive way to isolate or eliminate the problem. Refer to the
DRIVERS folder on the Electronic Library CD-ROM for detailed instructions on installing
the drivers.
5. Call your service technician.
This problem may be caused by a malfunctioning or broken component that requires service.
Duplex Makes Unusual Noises
The following characteristics define this duplexer problem:
• The duplexer makes unusual noises or makes more noise than usual either while idle or while
printing.
• The duplexer feeds paper without a problem.
• The control panel does not display an error code.
The following procedure guides you through multiple actions that may solve this duplexer prob-
lem. Proceed one step at a time until the problem is solved—you may not need to complete the
entire procedure. If one of the steps in this procedure corrects the problem but the identical prob-
lem returns in less than 50 prints, call for service.