Printronix P4280 - Preparing the Printer for Maintenance; Replacement Procedures

5–3Replacement Procedures
Replacement Procedures
CAUTION
The components specified in this chapter are replaced in the field, but
must be repaired at the factory. Do not attempt field repair of these
items.
This chapter contains illustrated removal/installation procedures for
components replaceable at the field service level of maintenance. The
removal/installation tasks are listed on pages 5–1 and 5–2.
Part Numbers
Part numbers for assemblies are on the removal/installation illustration, next
to the name of the assembly. On the illustrations, p/o means “part of,” and
Ref means “shown for reference only.” To order parts, call 714–553–2017, or
FAX 714–474–9218.
Preparing the Printer for Maintenance
WARNING
Unless directed to do otherwise, always unplug the printer from the
power source before performing a maintenance procedure. Failure to
remove power could result in injury to persons or damage to equipment.
The procedures in this chapter are written assuming the printer is prepared
for maintenance.
To prepare the printer for maintenance, do the following steps before
performing a replacement task:
1. Set the printer power switch to O (off). (If you must apply power for a
maintenance procedure, you will be instructed to do so in the
procedure.)
2. Disconnect the power cord from the ac power source.
3. Unload paper.
4. Read the entire maintenance procedure before you begin working on the
printer.
5. Gather the necessary replacement parts before you begin working on the
printer.