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Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-47
Error Messages and Codes
37,056.47: Power supply -50 volt under limit. Power supply -50 volt under
limit.
37,057.48: Power supply +15 volt over limit. Power supply +15 volt over limit.
37,058.40: Power supply +15 volt under limit. Power supply +15 volt under
limit.
37,059.41: Power supply -15 volt over limit. Power supply -15 volt over limit.
37,060.42: Power supply -15 volt under limit. Power supply -15 volt under
limit.
37,061.43: Power supply high switch will not
activate. 12, 15, and 50 volt
missing. This may be due to a
short or disconnected power
supply reset line.
Power supply +5 volt over limit.
37,062.44: Vss measurement too low. The
Printhead power cable may be
disconnected.
NOTE Later version Printheads
feature a lock connector on the
printhead data cable
Power supply +5 volt under limit.
37,063.45: Vpp measurement too low. The
Printhead power cable may be
disconnected.
NOTE Later version Printheads
feature a lock connector on the
printhead data cable
Power supply high switch will not
activate. 12, 15, and 50 volt
missing. This may be due to a
short or disconnected power
supply reset line.
37,064.46: Vss measurement too low. The
Printhead power may be
disconnected.
37,065.47: Vpp measurement too low,
Printhead power may be
disconnected. Wave amp drive
cable may be damaged or
disconnected at head driver
board or wave amp board.
37,066.48: The Wave Amp may be shorted.
Check the Wave Amp drive cable
(lifted ends of conductors).
Troubleshooting Procedure for Power Supply
Step Questions and Actions
Yes No
1 Run the Voltages check test.
Did the test pass?
Go to Step 2. Replace the
Electronics
Module.
2 Check the Printhead power cable.
Is the wiring damaged or not connected?
Reseat or
replace the
wiring.
Replace the
Wave Amp.
8400 PEST Description
8500/8550/8560 PEST
Description