Oki ColorPainter E-64s - Manual (Page 90)

90
 The vector data colors are not vivid
There is no vividness in the colors in vector objects, or the colors are weak.
Cause
When color management is performed on the vector objects, the colors will lose a good portion of their
vividness.
Action
Turn off color management for vectors.
Procedure
In Job Editor, on the Printer and Media tab, click Change Profiles.
On the Profiles tab, set the vectors to No Profile Selected.
You can also turn off color management for specific hues.
For details, see I want to print with pure colors on page 45.