Canon S400 Reference Manual page 165

Check 4
Are you executing a high-density print on plain paper?
If you execute a high-density print job on plain paper, the paper may absorb
too much ink and curl, the print head may scratch the surface of the curled
page. Lower the Intensity setting.
1
Open the Printer Properties dialogue box, and click the Advanced button in
the Main tab.
2
Click the Colour tab.
3
Use the Intensity slide bar to change the print density setting.
Check 5
Are you printing outside the recommended printing area?
If you print outside the recommended printing area, the print head may
scratch the bottom edge of the page. To avoid problems, print only in the
recommended printing area.
When you print on High Gloss Photo Film, Back Print Film, or T-shirt Trans-
Note
fers, the bottom margin should be larger than 27mm (1.1 in.).
Printing Area
Troubleshooting - Printout is Unsatisfactory
Printed surface scratched
165