Over time, the print head on your Canon Pixma IP3500 printer will come out of alignment, diminishing the print quality. Canon has provided a process that allows you to reset the print head's alignment by giving feedback, using the attached computer, on two test sheets the Pixma IP3500 prints out. The entire process will take you less than ten minutes to complete and you will see an immediate improvement in the printer's output quality.
Click the "Start" or Windows button on the task bar, then click the "Devices and Printers" option. Right-click the IP3500's icon to bring up a menu, then click "Properties."
Click the tab labelled "Maintenance" then the button labelled "Print Head Alignment." Wait for the printer to produce an alignment pattern sheet, then click the "Yes" button.
Examine the sheet for the patterns that look the most regular or even. Select the patterns in the window that appears on the computer's screen, then click the "OK" button.
Remove the next printout from the output tray. Select on the computer's screen the two patterns in the printout that have the least visible horizontal line, then click "OK." Click "OK" in the next window telling you the print head has been aligned.