Ricoh Aficio MP C3001 Service Manual page 1132

System SP3-xxx
[Vtref: Display/Set]
3222
Displays or adjusts the current Vtref value for each color.
001 Current: Bk
002 Current: M
003 Current: C
004 Current: Y
Displays or adjusts the Vtref value for each color at developer initialization.
005-008
DFU
005 Initial: Bk
006 Initial: M
007 Initial: C
008 Initial: Y
009-012 Displays and adjusts Vtref correction by pixel coverage for each color. DFU
009 Pixel Correction: Bk
010 Pixel Correction: M
011 Pixel Correction: C
012 Pixel Correction: Y
D086/D087
*ENG
*ENG
[0 to 5.5 / 3 / 0.01 V/step]
*ENG
*ENG
*ENG
*ENG
[0 to 5.5 / 3 / 0.01 V/step]
*ENG
*ENG
*ENG
*ENG
[-5 to 5.5 / 0 / 0.01 V/step]
*ENG
*ENG
3-152 SM Appendix