Ip4000 printer prints but with horizontal lines

Cannon recommend a cleaning process called deep head cleaning

1. Open the Printers folder.
   
   - For Windows XP select 'Start', 'Control Panel', 'Printers and Other Hardware', and 'Printers and Faxes'.
   - For Windows versions other than Windows XP select 'Start', 'Settings', and 'Printers'.
   
   
2. Right-click the printer icon and select 'Properties'.
   
   
   
   
3. Click the Maintenance tab, and then click the 'Deep Cleaning' icon.
   
   
   
   
   
4. Select the ink tank color(s) for deep cleaning ('All ip4000 printer prints but with horizontal lines - win_maint_deep_clean2.jpgor').
   
   
   
   
   
5. Confirm the message, and then click the 'Execute' button.
   
   
6. The Power lamp will blink and print head deep cleaning will start. Deep cleaning completes when the Power lamp stops blinking and lights. (It will take about a minute for the Power lamp to stop blinking and light solid.)
   
   
7. Print a Nozzle Check Pattern by holding down the <Resume> on the printer until the Power light flashes twice to determine if further cleaning is necessary. Up to three deep cleanings may be necessary to determine if the print head is working properly