Canon TS6420a Online Manual page 361

White Streaks Appear
Check paper and print quality settings.
Check1
Printout Results Are Unsatisfactory
Make sure of the estimated ink levels in the FINE cartridges.
Check2
When a FINE cartridge runs out of ink, replace empty FINE cartridges with a new one.
Checking Ink Status on the LCD
Replacing a FINE Cartridge
Is the FINE cartridge installed properly?
Check3
• Check that there is no orange tape left on the FINE cartridge.
If the orange tape remains on the FINE cartridge, peel it off.
• If you do not close the ink cartridge locking cover correctly, ink may not be ejected correctly.
Open the scanning unit / cover to open the ink cartridge locking cover, and then close it.
Press down the ink cartridge locking cover until it clicks into place.
Are the print head nozzles clogged?
Check4
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