Introduction

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.

1For 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.

2Unpack the maintenance kit, which is shipped in a folded cardboard pack. Remove the shipping carton and unfold the cardboard pack.

3Make 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)

4Unplug the printer.

5Open the top cover.

6Remove the photoconductor unit. Place the unit in its protective packaging in a safe place away from the work area.

9-18

General Printer Maintenance