G4000 Cannot communicate with scanner for scanner is turned off and USB cable is disconnected

[alfredmak]

My Canon G4000 printer is connected through USB cable with TP Link printer, but not directly through USB cable.

I use my computer to print that works with this usual connection. But, I cannot scan any document in the canon quick menu inside my computer and appears 

Cannot communicate with scanner for these reasons:

- Scanner is turned off.

- USB cable is disconnected.

Please check and try again.

Scanner driver will be closed.

Code:5, 156, 69

Could you possibly please help solve my problem, thank you 

[Michael]

Hello.

USB communication is not supported through a network or extension device.  You would have to connect the printer directly to your computer if you wished to use the printer via USB.

The printer also has Wi-Fi capabilities.  You could connect the printer to a Wi-Fi router.  Next, make sure that the computer is on the same network and then reinstall the G4200 drivers for a wireless setup.  This should allow you to scan over the network.

If you continue to have difficulties, find more help at Contact Us.