Overcurrent/overvoltage

There are two overvoltage devices in this printer:

•Fuse F101 provides overcurrent protection for the fusing system circuitry. Checking or replacing the fuse requires the removal of the ECU. Fuse F102 provides overcurrent protection to the printer DC power-supply circuitry.

•In addition, the +24 VDC and +3.3 VDC power circuitry contains an overcurrent protection circuit that automatically shuts off the output voltage when an overcurrent condition occurs as a result of a short or an abnormal voltage on the load side.

3

EN

AC and DC power distribution 131