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Precautions
Appendix B: Printer Options B-3
Precautions
DISCONNECT THE POWER CORD:
Never remove the printer control board while
the printer is plugged in.
To avoid the possibility of electrical shock,
always disconnect the power cord when
installing or removing ANY internal or external
printer option.
DISCHARGE STATIC ELECTRICITY:
The control board and internal printer options
(SIMMs, PostScript, Serial/LocalTalk interface) are
sensitive to static electricity. Before installing or
removing an internal option, discharge static
electricity from your body by touching something
metal, such as the metal back plate on any device
plugged into a grounded power source. If you walk
around before finishing the installation, again
discharge any static electricity.