Canon IMAGERUNNER C2550 Printer Manual page 236

NOTE
You can also perform the same procedure from the touch panel display. (See
"Halftones," on p. 3-46, p. 3-59, p. 3-75, p. 3-81, p. 3-96.)
The color of the photograph-like printout is different to the color on the display.
Cause
Remedy 1 Set 'Matching Method' in the printer driver to [Perceptual[Monitor Color
NOTE
You can also perform the same procedure from the touch panel display. (See "Matching
Method," on p. 3-89.)
Remedy 2 Set 'RGB Source Profile' to [Gamma 1.5], [Gamma 1.8], or [Gamma 2.4] and
6
A diagram containing gradation is printed with a streak in the gradation area.
Cause 1
Remedy 1 Disable 'Gray Compensation' in the printer driver and print the data again. (See
NOTE
You can also perform the same procedure from the touch panel display. (See "Gray
Compensation," on p. 3-49, p. 3-62, p. 3-84 , p. 3-93.)
Remedy 2 Enable 'Prioritize Printing of Lines and Text' in the Windows PS printer driver or
Remedy 3 Enable 'RGB Pure Black Process' or 'CMYK Pure Black Process' in the
NOTE
You can also perform the same procedure from the touch panel display. (See "RGB Pure
Black Process," on p. 3-71, and "CMYK Pure Black Process," on p. 3-71.)
Cause 2
Remedy
6-20
Printing Problems
Due to the difference of the color adjustment method between the display
(RGB) and the machine (CMYK), the display colors cannot be faithfully printed.
Matched]] and print the data again. (See the Help function on the printer driver.)
print the data again. (See "RGB Source Profile," on p. 3-47, p. 3-60, p. 3-66, p.
3-82, p. 3-85.)
'Gray Compensation' is affecting the gray part of the streak on the diagram.
the Help function on the printer driver.)
Mac PS printer driver, and print the data again. (See the Help function on the
PS printer driver.)
Windows PS printer driver or Mac PS printer driver, and print the data again.
(See the Help function on the PS printer driver.)
The machine's density settings are not adjusted correctly.
Perform an Automatic Gradation Adjustment. (See Chapter 4, "Customizing
Settings," in the Reference Guide.)