Epson WorkForce AL-M400DN User Manual page 93

Adjust this setting if black dots appear on the printed page when using the printer in locations at high
altitudes. See the table below and select a suitable value according to the location the printer is being
used.
Value
0
2
4
6
BTR Cleaning
Cleans the transfer roller. This may eliminate stains that appear on the backside of printed paper
documents. Do not turn off the printer until the LCD panel displays Ready.
Dev Refresh
Mixes the developer to spread it evenly. This may prevent seepage when printing low-density images.
Do not turn off the printer until the LCD panel displays Ready.
Toner Refresh
Removes deteriorated toner. If the following problems have occurred while printing low density
documents, this may improve the printouts.
- toner falls inside the printer or onto the paper
- blurring (toner adheres to entire surface of the paper)
Do not turn off the printer until the LCD panel displays Ready.
Noise Level
Adjusts the image gradation. As the value increases, the image gradation gets better, but the image
granularity gets worse.
Mono DiagnosisSht
Prints an all black sheet of paper called a mono-chrome diagnosis. The mono diagnosis sheet allows
you to check for blurring or dirt on the printout.
Altitude
0 m
1000 m
2000 m
3000 m
AL-M300/AL-M400 Series
Using the Control Panel
User's Guide
93