Canon BJC-3000 - Manual (Page 164)

164 Routine Maintenance
Aligning the Print Head
7
When you finish entering numbers...
Click the OK button to save the settings.
Save the settings.
8
Make sure that the printer is switched on and one sheet of A4- or Letter-
size plain paper is loaded, and then click the OK button. The printer starts
to print the high-resolution head alignment pattern.
Windows
Macintosh