Problem: I have installed the correct Epson driver into Windows then plug in the USB connection from the printer to the PC and nothing happens in Windows.

Solutions: Make sure you are using a USB port directly on the PC (not an external USB hub). If there is still no response check the following:

1. In Windows click Start / Control Panel / System / Device Manager. Expand the device category "Universal Serial Bus Controllers". An EPSON USB TM CONTROLLER should appear under this category if recognized properly by the computer.
2. If you do not see Epson USB controller in Device Manager then you can check the interface options programmed directly on the printer.
   1. The Epson TM-T88V is a DUAL interface printer which may have been setup to use only the Connect It interface slot and not the printer's built-in USB port. You can enable the printer's USB port through the following steps

The TM-T88V has a built-in configuration mode that runs after the self-test of the printer. To access the menu:

1. 1. Turn the printer off
2. 2. Hold the FEED button while turning the printer on
3. 3. After the first part of the self-test, press and HOLD the FEED button to access the mode

To navigate the menus:

1. Find the option you wish to change
2. Press the feed button however many times the option you want says. For example, "3. Change Value mode" means you press the button 3 times
3. Press and hold the feed button to advance In the menu, there are settings to allow you to change USB modes (vendor vs. printer class), Interface/USB selection, and others.
4. To change the printer to use the interface board, built-in USB, or automatically choose between them, use option 3, then option 10, then select the built-in USB interface.
5. Once the USB interface is selected the printer will print a message stating the setting is changed.
6. Power cycle the printer.
7. You should now be able to see the printer inside Device Manager under Universal Serial Bus Controllers:
   
   
   
   1. In Windows click Start / Control Panel / System / Device Manager. Expand the device category "Universal Serial Bus Controllers". An EPSON USB TM CONTROLLER should appear under this category if recognized properly by the computer.
8. You can now test the driver in either the Epson Advanced Driver or Epson OPOS driver depending on which driver package you have installed on the computer.