Ricoh MP C6502SP System Maintenance page 179

FC
Sets ON/OFF variable correction for Originals scanning level when continuously scanning
multiple originals using ADF.
For increasing productivity of ADF, creating correction data is done at a certain (3min)
interval.
001
If shade correcting data is not updated, original scanning level will change; affected from
the light source brightness change; there for, variable will be corrected by scanning ADF's
guide plate (white) from between originals.
In an occasion of an unexpected malfunction and level correcting does not work, or
background density disorderly changes among multiple scanned originals, and by
changing setting these will improve; then temporarily set correction OFF.
By setting interval shading OFF with SP4-351-001, even when ALC is set OFF, shading
will be done each time, and will prevent density change when having level correction OFF.
BW
Sets ON/OFF variable correction for Originals scanning level when continuously scanning
multiple originals using ADF.
For increasing productivity of ADF, creating correction data is done at a certain (3min)
interval.
002
If shade correcting data is not updated, original scanning level will change; affected from
the light source brightness change; there for, variable will be corrected by scanning ADF's
guide plate (white) from between originals.
In an occasion of an unexpected malfunction and level correcting does not work, or
background density disorderly changes among multiple scanned originals, and by
changing setting those will improve; then temporarily set correction OFF.
By setting interval shading OFF with SP4-351-001, even when ALC is set OFF, shading
will be done each time, and will prevent density change when having level correction OFF.
4850 [PMW]
[0 or 1 / 1 / 1/step]
*ENG 0:OFF
1:ON(default)
[0 or 1 / 1 / 1/step]
*ENG 0:OFF
1:ON(default)
SP4-XXX (Scanner)
177