Uninstalling the USB Class Driver

Uninstall the USB class driver under the following circumstances.
If the printer driver installed using a USB connection cannot be uninstalled properly
If you cannot install the printer driver properly even after reinstalling it
When uninstalling the USB class driver, be sure to perform the following procedure.
If you delete the USB class driver, it is automatically installed again by USB connection.
1
Check the following.
The printer and computer are connected using a USB cable.
The printer is turned ON.
2
Perform the following procedure.

From the [Start] menu, select [Settings] → [Control Panel], and then double-click [Add/Remove Programs].

From the [Start] menu, select [Control Panel], and then click [Add or Remove Programs].
  
From the [Start] menu, select [Control Panel], and then click [Uninstall a program].

From the [Start] menu, select [Control Panel] → [Add or Remove Programs].

From the [Start] menu, select [Control Panel], and then double-click [Programs and Features].
3
Make sure that [Canon LBP6300] is not displayed.
(1)
Make sure that [Canon LBP6300] is not displayed in the dialog box.
(2)
Click [  ] to close the dialog box.
 If [Canon LBP6300] is displayed
Delete [Canon LBP6300] in the dialog box. (Uninstall the printer driver.)
"Starting the Uninstaller from [Control Panel]"
"Uninstalling the Printer Driver"
4
Display [Device Manager].

1.
From the [Start]menu, select [Settings] → [Control Panel].
2.
Double-click the [System] icon.
3.
Click the [Hardware] tab → [Device Manager].

1.
From the [Start] menu, select [Control Panel].
2.
Click [Performance and Maintenance] → [System].
3.
Click the [Hardware] tab → [Device Manager].
  
1.
From the [Start] menu, select [Control Panel].
2.
Click [Hardware and Sound] or [Hardware] → [Device Manager].

1.
From the [Start] menu, select [Control Panel] → [System].
2.
Click the [Hardware] tab → [Device Manager].

1.
From the [Start] menu, select [Control Panel].
2.
Double-click [Device Manager].
 If the [User Account Control] dialog box appears
Click [Continue] or [Yes].
5
Double-click [Universal Serial Bus controllers].
6
Right-click [USB Printing Support], then select [Uninstall] from the pop-up menu.
Do not uninstall any drivers for other devices. If you uninstall them by mistake, Windows may not operate properly.
If the USB class driver is not installed properly, [USB Printing Support] is not displayed. Then, click [ ] to close the [Device Manager] dialog box.
 If the USB class driver is under [Other Devices]
Select the USB class driver which is displayed as [Unknown device], and then uninstall it.
7
Click [OK].
8
Click [ ] to close the [Device Manager] dialog box.
9
Disconnect the USB cable from the computer, then restart Windows.