HP color laserjet 2550 series Manuale Di Servizio

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.

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.

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 by placing ESD-sensitive parts into
protective ESD pouches.

This chapter contains removal and replacement procedures for the imaging drum (see

) and the print cartridge (see 

To remove and replace the pickup roller or separation pad, see 

The following tools are needed to service this product:

●

#2 Phillips screwdriver with magnetic tip

●

Small flatblade screwdriver

●

Small needle-nose pliers

ENWW

Introduction