Canon S400 User Manual page 303

Also make sure that the BJ Cartridge and Media Type settings match the
BJ cartridge and media currently set in the printer.
Note If Monochrome Effects is selected for Special Effects, the colors displayed
on the screen may differ from those that are printed. Make sure the correct
settings are selected.
You may also want to click the Advanced button in the Main tab; then click the
Windows
Color tab and adjust the color settings such as Color Balance, Output Style
and Brightness. If Color Adjustment is off, click the checkbox to turn it on.
Macintosh
Set the Print Mode to Manual and customize the print mode settings.
Using the Windows 98/95 Printer Driver
Printout Is Unsatisfactory
Troubleshooting 303