HP 2500 Service Manual - Page 89
Introduction, Removal and replacement strategy, Electrostatic discharge, User-replaceable parts
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Introduction WARNING! Note CAUTION Removal and replacement strategy This chapter documents removal and replacement of field replaceable units (FRUs) only. Replace parts in the reverse order of their removal. Directions for difficult or critical replacement procedures are included. The sheet-metal edges of the product can be sharp. Use caution when working on the product. Note the length, diameter, color, type, and location of each screw. 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. Electrostatic discharge The product contains parts that are sensitive to electrostatic discharge (ESD). Always service the product at an ESD-protected workstation, or use an ESD mat. CAUTION 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. User-replaceable parts This chapter contains removal and replacement procedures for the imaging drum (see page 90) and the print cartridge (see page 91). To remove and replace the pickup roller or separation pad, see "User-replaceable parts" on page 47. 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 A PoziDriv screwdriver will damage screw heads on the product. Use a #2 Phillips screwdriver. If you use a multispeed screwdriver, use a torque limiter. EN 5 Removal and replacement 87