user manual
8-6 Removal and Installation
HP DesignJet 430, 450C and 455CA Printers
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A RAM SIMM provides the Printer with extra memory. A ROM SIMM
contains new firmware code to override the internal firmware code.
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Torx-10
or
Flat
Before handling a SIMM, either put on a grounding wrist strap and
attach the end to the metal chassis of the Printer, or touch the outer
metal surface of the Printer with your hand. Otherwise, static
electricity from your body could damage the SIMM.