Ricoh M281 Series Service Manual page 791

1001 Bit Switch
002 Bit Switch 2
bit 0 Not used
bit 1 DFU
bit 2 Not used
bit 3 [PCL5e/c.PS]: PDL Auto Switching
Enables/disable the MFPs ability to change the PDL processor mid-job.
Some host systems submit jobs that contain both PS and PCL5e/c. If Auto
PDL switching is disabled, these jobs will not be printed properly.
bit 4 Not used
bit 5 DFU
bit 6 Not used
bit 7 DFU
1001 Bit Switch
003 Bit Switch 3
bit 0 DFU
to 1
bit 2 [PCL5e/c]: Legacy HP compatibility
Uses the same left margin as older HP models such as HP4000/HP8000.
In other words, the left margin defined in the job (usually "<ESC>*r0A")
will be changed to "<ESC>*r1A".
bit 3
DFU
to 7
1001 Bit Switch
004 Bit Switch 4
SM Appendix
0
-
-
-
Enabled
-
-
-
-
0
-
Disabled
-
0
3-151
Printer Service Mode
1
-
-
-
Disabled
-
-
-
-
1
-
Enabled
-
1
D255/D256/M281/M282