Canon mx860 - Manual (Page 148)

(5) Confirm the message for print head alignment, and press the OK button.
The third page of print head alignment sheets will be printed.
(6) Check the printed patterns and use the (Left) or (Right) button to input the
pattern number that has the least noticeable stripes for each column from a to j,
then press the
OK button.
Note
Refer to the samples below to select the pattern that has the least noticeable horizontal
white stripes.
(E) Less noticeable horizontal white stripes
(F) More noticeable horizontal white stripes
Page 148 of 997 pages Aligning the Print Head