Ricoh D017 Service Manual page 457

System SP Tables-2
Toner Supply Time
Adjusts the toner supply motor on time for sensor supply mode.
This SP is effective only when SP2921 is "0" or "1".
2922*
[0.1 to 5.0 / 0.6 / 0.1 s/step]
Increasing this value increases the toner supply motor on time. So, use a
high value if the user tends to make lots of copies that have a high
proportion of black.
Toner Recovery Time
Adjusts the toner supply motor on time during recovery from toner
near-end/end.
This SP is effective only when SP2921 is "0", "1", or "2".
2923*
[1 to 60 / 30 / 1 s/step]
Note that toner recovery is done in a 3-second cycle. So, the input value
should be a multiple of 3 (e.g. 3, 6, 9). See "Toner Density Control" for more
details.
Toner Supply Ratio
Adjusts the toner supply rate for fixed toner supply mode.
This SP is effective only when SP2921 is "2" or "3".
Increasing this value increases the toner supply motor on time. So, use a
2925*
high value if the user tends to make lots of copies that have a high
proportion of black. See "Toner Density Control" for more details.
[0 to 7 / 0 / 1/step]
0: t, 1: 2t, 2: 4t, 3: 8t, 4: 12t, 5: 16t, 6: On continuously, 7: 0 s
t: 200 ms
D017/D018/D019/D020/D084/D085 4-24 SM Appendix