Configure the Printer Port

Make sure that the printer port is configured appropriately in the printer driver.

1. Log on as a user account with administrator privilege.
   
   
2. Click 'Control Panel', then 'Printer' under Hardware and Sound.
   
   • In Windows 7, click 'Control Panel', 'Hardware and Sound', then 'Devices and Printers'.
     
   • In Windows XP, click 'Control Panel', 'Printers and Other Hardware', then 'Printers and Faxes'.
     
   • In Windows 2000, click 'Control Panel' then double-click 'Printers'.
     
     
3. Right-click the Canon MX870 Printer icon, then select 'Printer properties' (Windows 7) or 'Properties' (Windows Vista, Windows XP or Windows 2000).
   
   
4. Click the 'Ports' tab to confirm the port settings.
   Make sure that a port named USBnnn (where "n" is a number) with Canon MX870 Printer appearing in the Printer column is selected for Print to the following port(s).

Note: When the machine is used over LAN, the port name of the machine is displayed as "CNBJNP_xxxxxxxxxx".

* "xxxxxxxxxx" is the character string generated from the MAC address or a character string specified by the user when setting up the machine.

• If the setting is incorrect:
  Reinstall the MP Drivers.
  
  
• Printing does not start even though the port named USBnnn is selected:
  Launch Canon My Printer from the task tray, select 'Diagnose and Repair Printer'. Follow the on-screen instructions to set the correct printer port, then select Canon MX870 Printer (without FAX).
  If the problem is not resolved, reinstall the MP Drivers.
  
• Printing does not start even though the port named "CNBJNP_xxxxxxxxxx" is selected when the machine is used over LAN:
  Launch the Canon IJ Network Tool, and select 'CNBJNPxxxxxxxxxx' as you confirmed in step 4, then associate the port with the printer using Associate Port in the Settings menu.
  If the problem is not resolved, reinstall the MP Drivers.