User`s guide

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Flowcharts and Tables Troubleshooting
Important When there is a failure of the fusing system, the DC controller board shuts off
current to the fuser roller heater and charges capacitor C202 on the DC control-
ler board to prevent overheating. If there is a failure of the fusing system, you
must turn off the power and leave it off for about 10 minutes, or manually
discharge the capacitor before switching power back on.
Table 5. Paper-Jam LED is On After Printer Warmup (Continued)
Step Check Result Action
7 Remove the paper pickup
block and maintain pickup
connectivity. Place probes
between J601-7 (+5 V) and
J601-11 (GND) on the solder-
side of the pickup controller
board. Does the voltage
measure 5 V?
No Replace the DC-controller board-to-
pickup-controller-board cable.
8 Place probes between
J605-6 (RESS) and J605-5
(GND). Does the voltage
measure 5 V?
No Replace the pickup controller board.
9 Keep the probes in the same
position and manually trip the
registration sensor lever.
Does the voltage drop to 0 V
when you trip the lever?
No
Ye s
Replace the sensor holder assembly.
Replace the DC controller board.
Table 6. Fuser Assembly Error
Step Check Result Action
1 Remove the rear panel, I/O
board, and I/O shield. Is
connector J210 on the DC
controller board secure?
No Secure the connector.
2 Is the power supply firmly
seated?
No Seat the power supply.