Canon PIXMA TR4550, Online Manual

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Ink Does Not Come Out
Check1
Make sure of the estimated ink levels in the FINE cartridges.
Replace empty FINE cartridges with new ones.
Replacing a FINE Cartridge
Check2
Is the FINE cartridge installed properly?
If the FINE cartridge is not installed securely, ink may not be ejected correctly.
Open the paper output cover and remove the FINE cartridges.
Then install the FINE cartridges again. Push up the FINE cartridge until it clicks into place.
After confirming that the FINE cartridge is installed properly, close the paper output cover.
Check3
Are the print head nozzles clogged?
Print the nozzle check pattern to determine whether the ink ejects properly from the print head nozzles.
For details on printing the nozzle check pattern, print head cleaning, and print head deep cleaning, see If Printing
Is Faint or Uneven .
• If nozzle check pattern is not printed correctly:
After performing the print head cleaning, print the nozzle check pattern and examine the pattern.
• If problem is not resolved after performing print head cleaning twice:
Perform print head deep cleaning.
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