8-6 Phaser 7400 Color Printer Service ManualGeneral Notes on DisassemblyPreparationBefore you begin any Removal and Replacement Procedure:1. Switch Off the printer power and disconnect the power cord from the wall outlet.2. Remove the Imaging Units and cover them with a light proof bag or by placingthem in a light-tight container to protect them from exposure to light. Disconnectall computer interface cables from the printer.3. Wear an electrostatic discharge wrist strap to help prevent damage to the sensitiveelectronics of the printer circuit boards.4. Remove the Fuser or wait at least 10 minutes after you have switched Off printerpower for the Fuser to cool before you work on or around the Fuser.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.Notations in the Disassembly Text■ The notation “(item X)” points to a numbered callout in the illustrationcorresponding to the you disassembly procedure being performed.■ The notation “PLX.X.X” indicates that this component is listed in the FRU PartsList.■ Bold arrows in an illustration show direction of movement when removing orreplacing a component.Replacement NoteProvides information specific to the replacement of parts or assemblies.