Canon MG3500 Series Online Manual page 120

When you have entered all the necessary values, click OK.
Note
If it is difficult to pick the best pattern, pick the setting that produces the least
noticeable horizontal stripes.
(A) Least noticeable horizontal stripes
(B) Most noticeable horizontal stripes
Note
To print and check the current setting, open the Start Print Head Alignment dialog
box, and click Print Alignment Value.
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