Introduction Removal and replacement strategy This chapter documents removal and replacement of most field replaceable units (FRUs). Replace parts in the reverse order of their removal. Directions for difficult or critical replacement procedures are included. Remove the following components before removing or replacing assemblies and parts: finishing device print cartridge ADF output bin Before removing or replacing assemblies and parts: make sure the printer is turned off disconnect all cables and cords WARNING! Exercise caution when working on the MFP. The MFP can have sharp sheet-metal edges. Note Note the lengths, diameters, and locations of screws.
Be sure to return each screw to its original location during reassembly. Incorrectly routed or loose wire harnesses can interfere with other internal components and can become damaged or broken. Frayed or pinched harness wires can be difficult to locate. When replacing wire harnesses, always use the provided wire loops, lance points, or wire-harness guides. Note Always remove the print cartridge before removing or replacing assemblies and parts. IMPORTANT: Put the print cartridge in the original print cartridge bag, or, if the bag is not available, cover it with a piece of paper. Light can damage the print cartridge.
Electrostatic discharge CAUTION The MFP contains parts that are sensitive to electrostatic discharge (ESD). Always service the MFP at an ESD-protected workstation, or use an ESD mat. Watch for the ESD symbol (shown at left) to identify the parts that are sensitive to ESD. Protect these parts by using an ESD wrist strap and protective ESD pouches. Required tools The following tools are needed to service this product: #2 Phillips screwdriver with magnetic tip Small flatblade screwdriver Small needle-nose pliers ESD mat Penlight CAUTION A PoziDriv screwdriver will damage screw heads on the MFP. Be sure to use a #2 Phillips screwdriver. C8523-90921 Introduction 101