Ricoh D025 Service Manual page 1058

Printer Service Mode
[Save Tone Control Value]
Stores the print gamma adjusted with the "Gamma Adj." menu item as the
1105
current setting. Before the machine stores the new "current setting", it moves
the data currently stored as the "current setting" to the "previous setting"
memory storage location.
1105 1 Save Tone Control Value
[Toner Limit]
1106
Adjusts the maximum toner amount for image development.
1106 1 Toner Limit Value
D023/D025
*CTL [100 to 400 / 260 / 1 %/step ]
8-462 SM Appendix