HP 1055CMHP User Manual
Page 211
Removal and Installation
8-3
HP DesignJets 1050C and 1055CM Printers Service Manual
Electrostatic Discharge (ESD) Precautions
To prevent damage to the Printer circuits from high-voltage
electrostatic discharge (ESD):
1. Do not wear clothing that is subject to static build-up.
2. Do not handle integrated circuits (ICs) in carpeted areas.
3. Do not remove an IC or a printed circuit assembly (PCA) from its
conductive foam pad or conductive packaging until you are ready to
install it.
4. Ground (earth) your body while disassembling and working on the
Printer.
5. After removing a cover from the Printer, attach an earthing (ground)
lead between the PCA common and earth ground. Touch all tools to
earth ground to remove static charges before using them on the
Printer.
6. After removing any PCA from the Printer, place it on a conductive
foam pad or into its conductive packaging to prevent ESD damage
to any ICs on the PCA.
Required Tools
The following tools are required to disassemble and repair the
Printer.
Long Torx Screwdriver with
the indicated attachments
indicated attachments
Nut driver with the
Small flat-blade screwdriver