Ricoh B286 Service Manual page 352

SP4-xxx Scanner
4716 CIS White Level Adjustment: Factory DFU
These SP's display the standard white board values after adjustment at the
factory.
1 CIS1
2 CIS2
3 CIS3
4 CIS4
5 CIS5
4724 CIS Read Offset Data DFU
These SP codes display the black level read data for visual confirmation at power
on.
1 CIS1 : GE(ven)
2 CIS1 : GO(dd)
3 CIS2 : GE(ven)
4 CIS2 : GO(dd)
5 CIS3 : GE(ven)
6 CIS3 : GO(ven)
7 CIS4 : GE(ven)
8 CIS4 : GO(dd)
9 CIS5 : GE(ven)
10 CIS5 : GO(dd)
B286/B289
[0 to 511/0/1]
Note: If "0" is displayed, this means no adjustment has been
done.
[0 to 255/0/1]
5-82 SM