Lexmark Optra C Service Manual page 122

5045-001
Separation Voltage Control Designation
1. While holding down the COLOR SELECT key, press the ENTER
key 3 times. The "Y" and "Bk" COLOR SELECT LEDs flash to
indicate that the Separation voltage control designation mode
has been entered.
2. Select the separation voltage control method by the + key
or - key. When the chosen method differs from that currently
selected in the printer, the Density gauge LED will flash. The
correspondence between the Density gauge LEDs and each
separation voltage control method is as follows.
3-17