Ricoh D072 Service Manual page 321

System Service Mode (F/SPF: D068/D069)
4015* White Plate Scan
Start position
4015 1 Adjusts the scanning start position on the white plate. The base value is 17.8
mm from the scanner home position. This SP specifies the offset from this
base value.
Scanning Length
Adjusts the distance of the white plate scan. The scan begins from the start
4015 2
position (SP4-015-001) and ends at the specified distance. The base value is
2.0 mm. This SP decides the offset from this base value. Specify 0 (zero) or a
larger value.
4428 Scan Auto Adj
Conducts the automatic scanner adjustment. Use this SP after replacing the
4428 1
white plate (
4606 SBU Offset-Target
4607 1 EVEN
4607 2 ODD
4607 3 RED
4607 4 GREEN
4607 5 BLUE
D067/D068/D069/D072
[–3.0 to +6.0 / 0.0 / 0.1 mm/step]
[–3.0 to +6.0 / 0.0 / 0.1 mm/step]
"Scanning" in the section "Replacement and Adjustment").
[0 to 63 / 10 / 1 /step]
Adjusts the target black level for each signal.
These are used for offset adjustment in the SBU.
5-12 SM Appendix