Ricoh B286 Service Manual page 355

4747 CIS Hard Error Flag DFU
This SP displays the flags of errors that occur during the CIS communication
check done immediately after power on.
b0 Serial output port abnormal. Signal at HIGH level became "1."
b1 Read failure. Failed to read CIS unit version information.
Write failure. A value was written to the CIS register (AGC_CONT) but it
b2
could not be read.
4762 CIS Gain Adjustment Normally DFU
These SP's display the gain data of the analog ASIC (EVEN or ODD) from the
CIS after the white level adjustment done immediately after power on. The white
level adjustment sets the peak value (shading data peak) for each channel at
240±2 digits.
1 CIS1 : GE(ven)
2 CIS1 : GO(dd)
3 CIS2 : GE(ven)
4 CIS2 : GO(dd)
5 CIS3 : GE(ven)
6 CIS3 : GO(dd)
7 CIS4 : GE(ven)
8 CIS4 : GO(dd)
9 CIS5 : GE(ven)
10 CIS5 : GO(dd)
SM
[0 to 255/0/1]
5-85
SP4-xxx Scanner
B286/B289