Ricoh D146 Service Manual page 1528

[Data Recall]
1101
Recalls a set of gamma settings. This can be either a) the factory setting, b)
the previous setting, or c) the current setting.
001 Factory
002 Previous
003 Current
[Resolution Setting]
1102
Selects the printing mode (resolution) for the printer gamma adjustment.
001 Resolution Setting
[Test Page]
1103
Prints the test page to check the color balance before and after the gamma
adjustment.
001 Color Gray Scale
002 Color Pattern
System Maintenance Section
*CTL
[ - / - / - ]
*CTL
[Execute]
*CTL
[0 to 9 / 0 / 1/step]
0: 1200x1200 Photo (2bit/4col)
1: 1200x1200 Photo (1bit/4col)
2: 600x600 Photo (4bit/4col)
3: 600x600 Photo (2bit/4col)
CTL 4: 600x600 Photo (1bit/4col)
5: 1200x1200 Text (2bit/4col)
6: 1200x1200 Text (1bit/4col)
7: 600x600 Text (4bit/4col)
8: 600x600 Text (2bit/4col)
9: 600x600 Text (1bit/4col)
CTL
[ - / - / - ]
[Execute]
CTL
2-809
Printer SP Mode
D146/D147/D148/D149/D150