Xerox 2135N - Phaser Color Laser Printer, Quick Reference Manual

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Service Guide 43
Jams in the duplex unit
1. Is the duplex unit correctly installed?
2. Clean the rollers inside the duplex unit with a clean, dry, lint-free wipe if
debris is visible.
3.
Inspect the duplex unit for foreign objects such as a scrap of paper.
4.
Inspect the duplex unit’s electrical connector for damage.
5. Does the duplex unit’s sensors operate correctly? Test the sensors using the
service test “Switch scan test” on page 63.
6.
Test the duplex motor using the service test “Motor and clutch tests” on
page 69.
7. Replace the duplex unit.
8. Replace the engine controller board.
No imaging drum installed
1. Ensure that the imaging drums are properly installed.
2. Check the high-voltage terminal connectors for the imaging drum to ensure
that they are not damaged.
3. Replace the imaging drum.
Imaging drum up/down error
1. Cycle the printer power to see if the problem clears.
2. Ensure that each imaging drum unit is correctly installed and that each
unit’s drum contact assembly (a set of three spring-loaded pins) is not
damaged. Ensure that each contact moves up and down freely and is not
contaminated with toner. Remove an assembly from the printer to inspect,
if necessary.
3. Open the top cover, defeat the top cover open switch, and observe if the
color imaging drum unit are lifted up and down.
4.
Test the drum contact assemblies using service test “Switch scan test” on
page 63. If a drum contact assembly is damaged, replace it.
5.
Does each imaging drum motor rotate. Test them using the service test
“Motor and clutch tests” on page 69. Replace the main motor assembly, if
indicated.
6.
Inspect the gear drive for each imaging drum unit for damage.
7.
Replace the engine controller board.