Removal and replacement strategy
Cautions during removal and replacement
This chapter describes the removal and replacement of field-replaceable units (FRUs) only.
Replacing FRUs is generally the reverse of removal. Notes are included to provide directions for difficult or
critical replacement procedures.
HP does not support repairing individual subassemblies or troubleshooting to the PCA component level.
Never operate or service the product with the protective cover removed from the laser scanner assembly.
The reflected beam, although invisible, can damage your eyes.
The sheet-metal parts can have sharp edges. Be careful when handling sheet-metal parts.
CAUTION:
Some parts are sensitive to electrostatic discharge (ESD). Look for the ESD reminder when removing product
parts. Always perform service work at an ESD-protected workstation or mat. If an ESD workstation or mat is
not available, ground yourself by touching the sheet-metal chassis before touching an ESD-sensitive part.
Protect the ESD-sensitive parts by placing them in ESD pouches when they are out of the product.
CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation.
NOTE: To install a self-tapping screw, first turn it counterclockwise to align it with the existing thread
pattern, and then carefully turn it clockwise to tighten. Do not overtighten. If a self-tapping screw-hole
becomes stripped, repair the screw-hole or replace the affected assembly.
TIP: For clarity, some figures in this chapter show assemblies removed that are not required to be removed
to service the product (for example, the scanner and document feeder assemblies). The procedures in this
manual are correct for your product.
82 Chapter 2 Removal and replacement ENWW
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