Canon 300 - page 127

Print Quality is Poor or Contains Errors 127
Troubleshooting
Macintosh
1 Open the Page Setup dialog box.
The Page Setup dialog box can normally be opened by selecting Page
Setup... in the File menu.
2 Click Utilities.
3 Select Test Print from the pull-down menu, and then click Print Head
Alignment.
Follow the instructions on the screen.
Note ➤Straight lines can become misaligned if the paper thickness lever has been
moved. Aligning the print head may also resolve this problem.