Dell 2135cn - Multifunction Color Laser Printer Troubleshooting Manual page 66

Maintenance
Use the Maintenance menu to initialize the NV (non-volatile) memory, configure the plain paper quality adjustment settings, and configure the security settings.
NOTE: Values marked by an asterisk (*) are the factory default menu settings.
Paper Density
Purpose:
To specify paper density settings.
Values:
Light*
Plain
Normal
Normal*
Label
Light
Adjust BTR
NOTICE: The print quality changes depending on the setting values you select for this item.
Purpose:
To specify the transfer roller voltage adjustment for each paper type.
Values:
0*
Plain
-6 - +6
0*
Plain Thick
-6 - +6
0*
Covers
-6 - +6
0*
Covers Thick
-6 - +6
0*
Label
-6 - +6
0*
Coated
-6 - +6
0*
Coated Thick
-6 - +6
0*
Envelope
-6 - +6
Adjust Fuser
NOTICE: The print quality changes depending on the setting values you select for this item.
Purpose:
To adjusts the fuser temperature setting for each paper type.
Values:
0*
Plain
-2 - +2
0*
Plain Thick
-2 - +2
0*
Covers
-2 - +2