Canon S450 User Manual page 190

You see this screen:
Check all the patterns in lines of (Y), from (X1) to (X6), and from (B1) to
8
(B2).
For each line enter the appropriate number where you see the lines
perfectly aligned.
(Y)
Correct:
Incorrect:
When you finish entering numbers, click the OK button to save the settings.
9
(X1) (B1)
Using Maintenance Functions
Using the Windows 98/95 Printer Driver 190