Ricoh M281 Series Service Manual page 987

Video Data Path
done, the image is rotated in the page memory. The data is transferred to the BiCU.
JBIG Reception
When data compressed with JBIG comes in on PSTN-1 (the standard analog line), the data is
sent to the QM-CODER for decompression. Then the data is stored in the page memory, and
transferred to the BiCU.
SM 153 D255/D256 FAX OPTION