Set the correct printer port on Diagnose and Repair Printer. Follow the on-screen instructions toset the correct printer port, then select your machine's name.In Windows 7, Windows Vista, or Windows XP, click Start and select All programs, CanonUtilities, Canon My Printer, Canon My Printer, then select Diagnose and Repair Printer. Followthe on-screen instructions to set the correct printer port, then select your machine's name.If the problem is not resolved, reinstall the MP Drivers with the Setup CD-ROM or install them fromour website.• Printing does not start even though the port named "CNBJNP_xxxxxxxxxx" is selected when themachine is used over LAN:Launch IJ Network Tool, and select "CNBJNP_xxxxxxxxxx" as you confirmed in step 4, thenassociate the port with the printer using Associate Port in the Settings menu.If the problem is not resolved, reinstall the MP Drivers with the Setup CD-ROM or install them fromour website.Check3 Make sure that the machine is connected to your computer properly.When the machine is connected to your computer with a USB cable, make sure that the USB cable is securelyplugged in to the machine and the computer, then check the followings:• If you are using a relay device such as a USB hub, disconnect it, connect the machine directly to thecomputer, and try printing again. If printing starts normally, there is a problem with the relay device.Consult the reseller of the relay device for details.• There could also be a problem with the USB cable. Replace the USB cable and try printing again.When you use the machine over LAN, make sure that the machine is set up to be used over network correctly.Check4 Make sure that the MP Drivers are installed correctly.Uninstall the MP Drivers following the procedure described in Deleting the Unnecessary MP Drivers, thenreinstall the MP Drivers with the Setup CD-ROM or reinstall them from our website.Check5 When the machine is connected to your computer with a USB cable, checkthe status of the device on your computer.Follow the procedure below to check the status of the device.1. Open the Device Manager on your computer as shown below.If the User Account Control screen is displayed, follow the on-screen instructions.• In Windows 8, select Control Panel from the Settings charm on Desktop > Hardware and Sound> Device Manager.• In Windows 7 or Windows Vista, click Control Panel, Hardware and Sound, then Device Manager.• In Windows XP, click Control Panel, Performance and Maintenance, System, then click DeviceManager on the Hardware sheet.2. Double-click Universal Serial Bus controllers then USB Printing Support.If the USB Printing Support Properties screen is not displayed, make sure that the machine is correctlyconnected to the computer.Check3 Make sure that the machine is connected to your computer properly.3. Click the General tab and make sure that there is no indication of a problem with the device.If a device error is displayed, refer to Windows help to resolve the error.819