Lexmark T640 - Installing Memory or Option Cards

A-4 Service Manual
4061-xx0
Installing memory or option cards
CAUTION: If you are installing memory or option cards sometime after setting up the printer, turn the printer off
and unplug the power cord before continuing.
You can customize the printer memory capacity and connectivity by adding optional cards. The instructions in
this section help you install any of the following options:
• Memory cards
– Printer memory
– Flash memory
• Firmware cards
– Bar Code
– IPDS and SCS/TNe
– PrintCryption
• Other options
– Printer hard disk
– RS-232 serial interface card
– Parallel 1284-C interface card
– MarkNet N8000 series internal print servers (also called internal network adapters or INAs)