HP digital sender 9200c Manuale Di Servizio

Pagina di 290
Removal and replacement strategy
This chapter describes how to remove, replace, and reassemble the major assemblies of the digital
sender. Replacement is generally the reverse of removal.
WARNING!
Unplug the power cord from the power outlet (at the wall receptacle) before
attempting to service the digital sender. If you do not follow this warning, severe injury can
result. Certain functional checks during troubleshooting might require power to be supplied to
the digital sender. However, all power should be turned off and the product should be
unplugged when you remove any digital sender assemblies or components. Never operate or
service the digital sender when the protective cover is removed from the laser/scanner
assembly. The reflected beams, although invisible, can damage your eyes.
CAUTION
The product contains components that are sensitive to electrostatic discharge
(ESD). Always perform service work at an ESD-protected workstation. If an ESD-protected
workstation is not available, discharge body static by grasping the digital sender chassis
before touching an ESD-sensitive component. Ground the digital sender chassis before
servicing the digital sender.
NOTE
To identify the left side and right side of the digital sender, face the control panel.
Required tools
#1 Phillips screwdriver
#2 Phillips screwdriver
#2 Phillips screwdriver with a shaft diameter of 6 mm (0.25 inch) or less
Short #2 Phillips screwdriver shaft length of 76 mm (3.0 inches)
Right-angle #2 Phillips screwdriver
Small flat-blade screwdriver
Needle-nose pliers
ESD mat (if available; see the preceding ESD caution)
Penlight (optional)
Tape (optional)
CAUTION
A pozidriv screwdriver can damage screw heads on the product. Use a #2 Phillips
screwdriver.
Before performing service
If possible, go to the digital sender embedded Web server and print the configuration page.
60
6 Removal and replacement