5-2 Phaser 7400 Color Printer Options Service ManualOverviewThis section contains the removal and replacement procedures for selected parts ofthe printer options package according to the Field Replaceable Units (FRUs) PartsList. Not all replacement procedures are included in this Service Manual. In mostcases, to reinstall a part, simply reverse the removal procedure shown. In someinstances, replacement notes are included providing special steps. For specificassemblies and parts, see the "Parts List" on page 6-1.General Notes on DisassemblyPreparationBefore you begin any Removal and Replacement Procedure:1. Switch Off the printer power, as well as power to the Finisher and options.2. Wear an electrostatic discharge wrist strap to help prevent damage to thesensitive electronics of the printer circuit boards.NoteNames of parts that appear in the removal and replacement procedures may notmatch the names that appear in the Parts List. For example, a part called theRegistration Chute Assembly in a removal procedure may appear on the PartsList as Assembly, Chute REGI. When working on a removal procedure, ignoreany prerequisite procedure for parts already removed.CautionMany parts are secured by plastic tabs DO NOT over Flex or force these parts.Do not over torque the screws threaded into plastic parts.Always use the correct type and size screw. Using the wrong screw can damagetapped holes. Do not use excessive force to remove or install either a screw or aprinter part.WarningUnplug the AC power cord from the wall outlet before removing any printer part.