Introduction
9-18 General Printer Maintenance
Tune-Up Maintenance Procedure
The tune-up maintenance procedure should be performed when the printer: jams fre-
quently; yields sub-standard print quality even after completing regular maintenance pro-
cedures; and has printed more than one- or two-million prints. At this point in the life of
the printer, the roller assemblies, transfer charger, and static brushes must be replaced. All
of the required components are packaged together in a Tune-Up Maintenance Kit.
1 For detailed instructions on how to replace each of these components, refer to Chapter
7, “Removal/Replacement Procedures”. General guidelines follow for unpacking the
component, along with an outline of the order in which the components should be
replaced.
2 Unpack the maintenance kit, which is shipped in a folded cardboard pack. Remove the
shipping carton and unfold the cardboard pack.
3 Make sure that you have received all of these replacement components, shown in Fig-
ure 9-8, “Tune-Up Kit Components,” on page 9-19:
• Roller assembly, lower feed
• Roller assembly, upper feed
• Roller assembly, paper timing
• Roller assembly, exit
• Roller assembly, upper paper guide
• Transfer charger
• Roller assembly, upper pick up
• Roller assembly, lower pick up
• Static brush, upper (in cardboard folder)
• Static brush, lower (in cardboard folder)
• Label (taped to the top of the package)
4 Unplug the printer.
5 Open the top cover.
6 Remove the photoconductor unit. Place the unit in its protective packaging in a safe
place away from the work area.
