Canon PRO-300 Series Online Manual page 616

If you are using a USB cable, make sure it is securely connected to both the printer and the computer. When
the USB cable is securely plugged in, check the following:
• If you are using a relay device such as a USB hub, disconnect it, connect the printer directly to the
computer, and retry the printing. If printing starts normally, there is a problem with the relay device.
Contact the vendor of the relay device.
• There could also be a problem with the USB cable. Replace the USB cable and retry the printing.
If you use the printer over a LAN, make sure the printer is correctly set up for network use.
Make sure printer driver is installed correctly.
Check3
Uninstall the printer driver following the procedure described in
click here to reinstall it.
When printer is connected to your computer with a USB cable, check device
Check4
status from your computer.
Follow the procedure below to check the device status.
1. Select Control Panel > Hardware and Sound > Device Manager.
Note
• If the User Account Control screen appears, select Continue.
2. Open USB Printing Support Properties.
Double-click Universal Serial Bus controllers and USB Printing Support.
Note
• If USB Printing Support Properties screen does not appear, make sure the printer is correctly connected to the computer.
Make sure printer is properly connected to computer.
Check2
3. Click General tab and check for a device problem.
If a device error is shown, see Windows Help to resolve it.
Other Error Messages (Windows)
If an error message appears outside printer status monitor, check the
Check
following:
• "Could not spool successfully due to insufficient disk space"
Delete any unnecessary files to increase the amount of free space on the disk.
• "Could not spool successfully due to insufficient memory"
Close other applications to increase the available memory.
If you still cannot print, restart your computer and retry the printing.
• "Printer driver could not be found"
Uninstall the printer driver following the procedure described in
and click here to reinstall it.
• "Could not print Application name - File name"
Try printing again once the current job is complete.
Deleting the Unnecessary Printer Driver
Deleting the Unnecessary Printer Driver
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