Diagnostic Led Flash Sequences - Xerox PHASER 5400 Advanced Features And Troubleshooting Manual

Troubleshooting

Diagnostic LED flash sequences

When the printer is powered ON, it runs a sequence of self test diagnostics. Some failures
are detected in these tests and are identified by a flashing sequence indicated on the
system controller diagnostic LED located on the controller board at the rear of the printer.
Flash sequence
1 flash —1 second — 1 flash...etc.
2 flashes — 1 second — 2
flashes...etc.
3 flashes — 1 second — 3
flashes...etc.
4 flashes — 1 second — 4
flashes...etc.
5 flashes — 1 second — 5
flashes...etc.
6 flashes — 1 second — 6
flashes...etc.
8 flashes —1 second — 8 flashes...etc.
9 flashes — 1 second — 9 flashes...etc. A hard disk failure has occurred.
10-12 flashes — 1 second — 10-12
flashes...etc.
15 flashes — 1 second —15
flashes...etc.
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Description and corrective action
A System controller CPU fault has occurred.
Contact your Customer Support Center.


A Base RAM fault has occurred.
Contact your Customer Support Center.


A ROM fault has occurred.
Contact your Customer Support Center.


An ASIC or timer fault has occurred.
Make sure the controller board is firmly seated.


If the problem is not resolved, contact your Customer


Support Center.
A resolution enhancement self-test fault has occurred.
Contact your Customer Support Center.


A communications ports internal loopback test fault has
occurred.
Contact your Customer Support Center.


A system controller to print engine fault has occurred.
Make sure the controller board is firmly seated.


If problem is not resolved, contact your Customer Support


Center.
Make sure the hard drive is firmly seated on the Controller


Board.
If problem is not resolved, contact your Customer Support


Center.
A slot DIMM1 - DIMM3 fault has occurred:
10 flashes = DIMM1 fault
11 flashes = DIMM2 fault
12 flashes = DIMM3 fault
Power OFF the printer, remove and reinstall the DIMM, and


Power ON the printer.
If still flashing at Power ON, replace the DIMM.


An image enhancement fault has occurred.
Contact your Customer Support Center.


Xerox Phaser 5400 Laser Printer