Canon MP980 series On-Screen Manual page 716

Manual Print Head Alignment
pattern in column A that has the least noticeable vertical streaks.
Note
If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical
white streaks.
(A) Less noticeable vertical white streaks
(B) More noticeable vertical white streaks
10.
Repeat the same procedure until you finish inputting the pattern number for columns
B to G, then press the
For the column F and G, pick the setting pointed by an arrow that produces the least noticeable
horizontal streaks.
Note
If it is difficult to pick the best pattern, pick the setting that produces the least noticeable
horizontal white streaks.
(C) Less noticeable horizontal white streaks
(D) More noticeable horizontal white streaks
11.
Confirm the displayed message and press the OK button.
The second pattern is printed.
Important
button.
OK
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