Overcurrent/overvoltage
There are two overvoltage devices in this printer:
•Fuse F101 provides overcurrent protection for the fixing system circuitry. To check or replace the fuse requires the removal of the ECU. Fuse 102 (found only on 110 V units) provides overcurrent protection to the printer DC power supply circuitry.
•In addition, the +12 VDC and +5 VDC power circuitry contains an overcurrent protection circuit which 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.
134 Chapter 3 – Power supply | EN |