Canon Color imageCLASS MF8170c Basic Manual page 154

Data is not printed in accurate color (specified color), or colored text appears blurred due to
color deviation.
Q
A
Q
A
Q
A
Colored lines and text come out faint.
Q
A
Colored text appears to be blurred.
Q
9
A
The colors of thin lines or filled-in patterns are different from those specified, or do not
appear.
Q
A
A
Q
A
9-32 Print Quality Problems
Has one of the four color-cartridges reached its lifetime, or has deteriorated?
Replace the toner cartridge that is almost reached with a new cartridge. (See
"Replacing the Toner Cartridge," on p. 8-5.)
Is proper paper is not being used?
Replace the paper to a type that can be used with this machine. (See "Print
Media Requirements," on p. 2-1.)
Was data sent before completing calibration, such as before turning the power
ON?
Make sure that the Ready lamp is ON, then send the data.
Are thin lines or text being used?
Check [Prioritize Printing of Colored Lines and Text] in the printer driver.
Specify [Prioritize Printing of Colored Lines and Text] in the [Details Settings]
dialog box by clicking [Details] in the [Quality] sheet.
Is a bold font being used for the colored text?
Specify [Matching Method] in the printer driver to [Perceptual [Photographic]].
Specify [Matching Method] in the [Matching] sheet by checking [Manual Color
Settings] in the [Quality] sheet and clicking [Color Settings].
Are colors reproduced due to the combination of colors or patterns?
Adjust the colors with the application and print again.
Change the patterns with the application and print again.
Does the color appear different depending on the fill-pattern?
Readjust to a darker color and print again.