Introduction
This chapter is a step-by-step guide to the removal and installation of the key components of the printer.
You may find it useful to check off the steps as they are performed. Use the illustrations for each
procedure to identify the parts referred to in the text.
The procedures appear in order of removal. The whole machine can be stripped down by starting at the
beginning of this chapter and working through the subsequent procedures.
NOTE: Before using this chapter to remove and install a new component, always make sure that you
have performed the relevant service test. If the test passes you will not need to replace the component.
Safety Precautions
Review the instructions identified by WARNING and CAUTION symbols before you service the printer.
Follow these warnings and cautions for your protection and to avoid damaging the printer.
NOTE: Serious shock hazard leading to death or injury may result if you do not take the following
precautions:
●
Ensure that the ac power outlet (mains) has a protective earth (ground) terminal.
●
Switch the plotter off, and disconnect it from the power source prior to performing any maintenance.
●
Prevent water or other liquids from running onto electrical components or circuits, or through
openings in the module.
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
All the special tools and equipment required to disassemble, service and repair the Printer are provided
in the Toolkit P/N Q6683–67001. Some tools can be ordered separately from the toolkit. Refer to
Parts
and Diagrams on page 151.
The Toolkit contains the following tools:
Table 6-1 Toolkit P/N Q6683-67001
Description/Comments HP Part Number
13 mm Combination Spanner Q6675-67011
Alcohol Q6675-60070
ENWW Introduction 169
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