Canon PRO-10 Series Manual page 788

If the problem is not resolved after performing the Print Head Deep Cleaning, turn off the printer
and perform another Print Head Deep Cleaning after 24 hours.
If the problem is not resolved after performing the Print Head Deep Cleaning twice:
If Print Head Deep Cleaning does not resolve the problem, the print head may be damaged.
Contact the service center.
Check 3: Perform Print Head Alignment.
Aligning the Print Head
Note
If the problem is not resolved after performing the Print Head Alignment, perform Print Head
Alignment manually referring to
Check 4: Is automatic ink quality maintenance enabled?
If automatic ink quality maintenance is disabled, ink in one or more ink tanks may separate, resulting in
uneven density. Enable automatic ink quality maintenance by using the printer driver.
1.
Make sure that the printer is turned on.
2.
Open the Canon IJ Printer Utility.
Opening the Canon IJ Printer Utility
3.
Select Custom Settings in the pop-up menu.
4.
Select the Execute ink quality maintenance automatically check box, then
click Apply.
5.
Confirm the message and click OK.
Important
Enabling automatic ink quality maintenance is recommended. Failure to perform the ink quality
maintenance about once a week may affect print quality.
If automatic ink quality maintenance has been disabled, perform the ink quality maintenance
manually about once a week.
Maintaining the Ink Quality
Aligning the Print Head Position Manually from Your Computer.
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