User`s guide

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Options
The following options are available to further enhance the
capabilities of your printer. For descriptions and ordering
information regarding these options, refer to Appendix C,
"Options and Supplies."
Memory Expansion Kits
Programmable Font Module (1 and 2 megabyte modules)
Internal Fax Modem (North America only)
External Fax Modem (outside North America)
Ethernet Interface
Serial Interface Board
Additional Paper Trays and Feeders
AppleTalk Interface
Overview and Installation 1-3