User's Manual

Service approach
Device repair normally begins by using the device internal diagnostics and the following two-step
process:
1. Isolate the problem to the major system (for example, the network or server, or the device).
2. Troubleshoot the problem by using the procedures in chapter 6.
After you locate a faulty part, the device can usually be repaired at the assembly level by replacing field-
replaceable units (FRUs). Some mechanical assemblies might need to be repaired at the subassembly
level. Hewlett-Packard Company does not support replacement of components on the printed circuit
assembles.
Before performing service
Follow the pre-service procedures before you perform service.
Pre-service procedures
1. Remove all media from the device.
2. Unplug the power cord and the interface cable.
3. Lift the device off of any installed optional trays.
4. Remove the print cartridge.
5. Remove tray 2.
6. Place the device on an ESD mat. If an ESD mat or an ESD-protected workstation is not available,
discharge body static and ground the device chassis before servicing the device.
ENWW Service approach 67