Canon BJC-6200 - Manual (Page 161)

161 Troubleshooting - Printout is Unsatisfactory
Colours streaked or wrong
The text appears scratched, streaked, or the wrong colours are printed.
Check 1 Is the ink of BJ Cartridge in good condition?
Check 2 Have the protective tape or cap been reattached?
Check 3 Did you print on the correct print side of the media?