Canon PI}{MA Pro 9000 Serie? Quick Start Manual page 54

Printing Maintenance
2
When cleaning is necessary, ·click Cleaning on the Pattern Check dialog box.
If you want to continue to clean the Print Head from here, go to (3) in step 3 of the
Windows or Macintosh Print Head Cleaning procedures as appropriate.
See "Print Head Cleaning" on page 51.
If both of the group (1) and the group (2) patterns have.no white stripes, click Exit or
Quit.
Nozzle Check Pattern examination finishes.
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