Ricoh D146 Service Manual page 1976

5. DETAILED SECTION DESCRIPTIONS
5.1 OVERVIEW
The FCU controls all the fax communications and fax features, in cooperation with the controller
board. Also, the FCU contains the ROM, SRAM and NCU circuits.
Fax Options:

Extra G3 Interface option: This provides one more analog line interface. This allows full dual
access. Two extra G3 interface options can be installed.

Memory Expansion: This expands the SAF memory and the page memory (used for image
rotation); without this expansion, the page memory is not big enough for image rotation at 400
dpi, so transmission at 400 dpi is not possible.
D163 200 SM