Canon MG5100 series On-Screen Manual page 110

Important
Do not touch any printed part on the print head alignment sheet.
Be careful not to get the print head alignment sheet dirty. If the sheet is stained or
wrinkled, it may not be scanned properly.
When the message "Did the patterns print correctly?" appears, confirm that the
(5)
pattern is printed correctly, select Yes, then press the
5.
Scan the print head alignment sheet to adjust the print head position.
Confirm the message, and load the print head alignment sheet on the Platen
(1)
Glass.
Load the print head alignment sheet WITH THE PRINTED SIDE FACING DOWN and align the mark
upper left corner of the sheet with the alignment mark
Close the Document Cover gently, and press the OK button.
(2)
The machine starts scanning the print head alignment sheet, and the print head position will be adjusted
automatically.
Important
button.
OK
.
on the