Canon MG7500 series Online Manual page 221

For (A) (no missing lines or no horizontal white streaks) in both the pattern (C) and pattern (D):
1. The cleaning is not required. Tap All A.
2. Confirm the message, then tap OK.
The screen will return to the Maintenance screen.
For (B) (lines are missing or horizontal white streaks are present) in the pattern (C) or pattern (D),
or in both patterns:
1. The cleaning is required. Tap Also B.
The cleaning confirmation screen will appear.
2. Tap Yes.
The machine starts cleaning the print head.
Cleaning the Print Head
Note
• The total number of sheets printed so far is shown in increments of 50 sheets on the printout of the
nozzle check pattern.
221