Dead Machine Service Check
• Check the AC line voltage. The voltage should be within the following limits:
• 100 V ac (volts alternating current)-127 Vac for the 110V machine
• 200 V ac-240 Vac for the 220V machine
FRU Action
LVPS/HVPS
Unplug the machine. Remove the LVPS/HVPS, and check the fuses
for continuity.
• If open, then replace the LVPS/HVPS.
• If not open, then check the switch continuity across its
conductors with the switch on. Turn the switch off. Plug the AC
line into the LVPS/HVPS and switch unit on.
Voltages are exposed at several places on the board. Do these
verifications, and then unplug the AC cord from the power supply:
CN201-6, 17, 19 (Pins): +24Vdc
CN201-10, 12, 14, 16, 18: Ground
CN201-1,3, 5, 11,13, 15 (Pins): +5Vdc
•
If voltages are not correct, then replace the LVPS/HVPS.
• If voltages are correct, then check the engine board (
p.236
"Engine Board Service Check").
If the engine board checks out ok, perform the controller board
service check.
Fuser Service Check
When toner is partially fused to the media, it is usually caused by low fuser temperature.
The line voltage to the machine must be within the following limits:
•
100 V ac-127 V ac for the 110V model machine
•
200 V ac-240 V ac for the 220V model machine
• This machine uses a belt fuser and therefore does not have a lamp.
6. Troubleshooting
240
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