Canon LBP7660Cdn Manual page 954

Superimposed Diagrams Are Not Printed in the Correct Color
Perform the following procedure.
<Cause> Because the superimposed areas are misaligned due to enlarged or reduced printing,
or any complicated superimpose process is specified in the application, the following
problems occur.
Streaks appear.
Diagrams are printed with their colors partially different from the data.
Diagrams that are not filled in with any color do not appear through another data and cannot be printed in the correct
color.
UFR II Printer Driver
Perform the following procedure in the printer driver.
Solution
PCL 6 Printer Driver
See Help of the PCL 6 printer driver.
1. Display the [Quality] sheet.
2. Click [Advanced Settings].
3. Set [Mode Details] to [High Quality].
0258-0R6