Ricoh D127 Service Manual page 288

System Service Mode
4632* Display Gain Adjust
4632 1 Latest: G Color 600
4632 2 Latest: G Color 1200
4632 3 Latest: BK E
4632 4 Latest: BK O
4633* Display Gain Adjust
4633 1 Latest: B Color 600
4633 2 Latest: B Color 1200
4645* Scan Adjust Error
4645 1 White level
4645 2 Black level
4647* Scanner Hard Error
4647 1 Power - ON
4654* Black Level Adj. Display
4654 1 Last Correct Value: R Color 600
4654 2 Last Correct Value: R Color1200
D127/D128
[0 to 511 / 0 / 1 digit/step]
[0 to 511 / 0 / 1 digit/step]
[0 to 65535 / 0 / 1 /step]
[0 to 65535 / 0 / 1 /step]
[0 to 255 / 0 / 1 digit/step]
3-32 SM Appendix