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Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-61
General Troubleshooting
f. Plug in all cables removed during service.
g. Trace through all service steps performed to reattach any cables that
were unplugged during debugging.
h. Attach printer covers.
i. Perform full test of printer.
Printer Reports Missing Drum Maintenance Kit
1. Drum Maintenance Kit missing or not fully seated.
a. Fully install Drum Maintenance Kit.
2. Connector not fully seated.
a. Check I/O Board connector J860 for proper mating.
3. Check that the Drum Maintenance Kit stop on left end of the Drum
Maintenance Pivot Plate is not broken.
4. Chack that the Waste Tray Sensor is correctly installed at the end of the
Waste Tray Cover.
Printer Reports Missing Waste Tray
1. Waste Tray missing or not fully seated.
a. Fully install waste tray.
2. Connector not fully seated.
a. Check I/O Board connector J110 for proper mating.
Optional Features Not Available
1. Printer configuration incorrect.
a. Verify proper configuration of printer using Control Panel.
2. Computer print driver configured incorrectly.
a. Examine print driver setup to ensure printer driver setup doesn't
override desired features set via Control Panel.
3. Configuration card failure.
a. Verify configuration card is properly oriented and fully inserted.
b. Verify printer model purchased corresponds to features expected.
c. Clean configuration card contacts with isopropyl alcohol, reinstall, and
retest.
d. Swap configuration card with a known working card. If printer works,
replace card with one containing identical features as originally
purchase.
e. The configuration card enables certain optional features in the printer.
Care must be taken to duplicate the features of the original printer
when replacing the card.
525-Sheet Feeder Does Not Function
1. Thermal safety fuse blown.
a. Power cycle printer.
b. The safety fuse is a self resetting device. Power cycling ensures the
fuse cools enough to reset itself.
2. 525-Sheet Feeder faulty.