Canon PRO-100S series Online Manual page 479

White Streaks
Did you confirm the paper and print quality settings?
Check1
Print Results Not Satisfactory
Check the status of ink tanks. Replace the ink tank if the ink has run out.
Check2
Replacing an Ink Tank
Is the orange tape or protective film remaining?
Check3
Make sure that all of the protective film is peeled off and the L-shape air hole is exposed, as illustrated in (A).
If the orange tape is left as in (B), pull the orange tape and remove it.
Print the Nozzle Check Pattern and perform any necessary maintenance
Check4
operations such as Print Head Cleaning.
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
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.
for the Nozzle Check Pattern printing, Print Head
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