Ricoh D158 Service Manual page 491

[Standard Vt] DFU
2926
Sets reference value of T sensor control to control toner density.
This SP clears SP2-224-001: Copies After Toner Near End
001 -
[ID Sensor Control Function Select] (D158/D159)
[ID Sensor Control] (D160/D161/D170)
2927
Determines whether the ID sensor signal is referenced or not for the toner
density control. Keep the default value in usual operations.
0: Off , 1: On
001
(ID Sensor Control)
[Toner End Clear]
Clears the following messages and counters without supplying the toner:

Toner near end message

Toner end message
2928

Toner near end counter

Toner end counter
Do not use this SP in usual operations. When the toner in the development unit
is abnormally insufficient, the drum may attract the toner carrier to its surface.
The toner carrier might damage the drum surface.
0: Off , 1: On
001
(Toner End Clear)
SM Appendix
[0.00 to 5.00 / D158/D159:2.50,
*ENG D160/D161/D170:2.40 / 0.05 vol /
step]
[0 or 1 / 1 / 1 / step]
ENG 0: Correction Off
1: Correction On
ENG [0 or 1 / 0 / 1 / step]
3-33
Main SP Tables-2
D158/D159/D160/D161/D170