Routine Maintenance 99

Power Fuse Replacement

Power Fuse Replacement

The print engine uses a metric-style fuse (5 × 20 mm IEC) rated for 5 Amps at 250 Volts that bears the certification mark of a known international safety organization (see Figure 11

on page 34). The power entry module comes with two approved fuses in the fuse holder: one is in-circuit, and the other is a spare.

Caution • Turn Off (O) the print engine and disconnect it from the power source before performing the following maintenance.

To replace a fuse, complete these steps:

1.Turn Off (O) the print engine and unplug the power cord from the back of the print engine.

2.Using a small-blade screwdriver, remove the fuse holder from the power entry module at the rear of the print engine.

3.Carefully remove the fuse from the in-circuit location.

4.To remove the spare fuse, gently push the point of a pencil or the end of a paperclip through one of the two holes in the fuse holder. Repeat through the other hole.

5.Insert the spare fuse in the in-circuit location.6.Place a new fuse in the spare fuse location.

7.Reinstall the fuse holder into the power entry module at the rear of the print engine.

8.Reconnect the power cord, and then turn On (I) the print engine.

The print engine should be ready for operation and the POWER light should be on. If power is not restored, an internal component failure may have occurred, and the print engine may require servicing.

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110PAX4/R110PAX4 User Guide

57512L-004 Rev. A