CAUTION Do not pull directly on the wires to disconnect them. Always pull on the plastic body
of a connector to avoid damaging the connector wires.
Types of screws
Illustration Description Size Part number Use
Screw with washer M3X8 XA9–1420–000CN Used to secure metal
components to metal
components (for
example, a ground wire
to the frame)
Screw, RS M3X6
M3X10
XA9–1499–000CN Used to secure metal to
metal
Screw, tapping M3X6 XA9–1503–000CN
Screw M3X8 XA9–1686–000CN
Screw P-M3X8 XB4–5300–807CN
Screw, tapping, truss
head
M4X10 XB4–7401–005CN Used to secure
anything to plastic
Service approach
Printer repair normally begins by using the printer internal diagnostics and the following two-step
process:
1. Isolate the problem to the major system (for example, the network or server, or the printer).
2. Troubleshoot the problem by using the procedures in chapter 6.
After you locate a faulty part, the printer can usually be repaired at the assembly level by replacing 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.
ENWW Removal and replacement strategy 67
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