Sharp AR-M451N Operation Manual page 22

PART NAMES AND FUNCTIONS
I I I I Other optional equipment
G G G G Barcode font kit (AR-PF1)
This kit adds bar code fonts to the machine.
G G G G Data security kit (AR-FR21, AR-FR21U)
This kit is used to erase electronic data from the
hard disk and memory immediately after a
document is printed or transmitted.
G G G G PS3 expansion kit (AR-PK6)
This kit provides compatibility of PostScript level 3
to the printer.
Some peripheral devices cannot be installed together while others may require the installation of one or more others
to be functional. See page 8-4, "LIST OF COMBINATION OF PERIPHERAL DEVICES".
Peripheral devices are basically optional, but some are provided as standard equipment for some models.
1-12
G G G G Facsimile expansion kit (AR-FX12)
This kit is required to add fax function.
G G G G Additional fax memory (8MB) (AR-MM9)
G G G G Network scanner expansion kit (AR-NS3)
This kit is required to add the network scanning
feature.