Canon PRO-10 Series Manual page 794

Home > Troubleshooting > Problems with Printing Quality
U323
Ink Is Not Ejected
Check 1: Has the ink run out?
Open the top cover, then check the status of ink lamp.
Checking the Ink Status
Check 2: Are the print head nozzles clogged?
Print the Nozzle Check Pattern to determine whether the ink ejects properly from the print head
nozzles.
Refer to When Printing Becomes Faint or Colors Are Incorrect
Print Head Cleaning, and Print Head Deep Cleaning.
If the Nozzle Check Pattern is not printed correctly:
Check to see if a particular color's ink tank is not empty.
If the Nozzle Check Pattern is not printed correctly though ink is sufficient, perform the Print Head
Cleaning and try printing the Nozzle Check Pattern again.
If the problem is not resolved after performing the Print Head Cleaning twice:
Perform the Print Head Deep Cleaning.
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.
> Ink Is Not Ejected
for the Nozzle Check Pattern printing,
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