USB scan with TR4720 - Printer says no computer connected

[SmallTR]

I installed a USB WITH A CONVERTER cable in the back of my printer. I selected on the printer to scan with local usb scan on the printer menu but when I press color I get an error msg that says no computer connected. How to I get the printer to manually scan to a USB attached in the back? Thank you for your help. I am a Mac and iOS user and have no trouble printing wirelessly or copying. 

[Danny]

Thanks for joining the conversation, SmallTR!

So that the Community can help you better, we need to know exactly which version of macOS is running on your computer. That, and any other details you'd like to give will help the Community better understand your issue!

If this is a time-sensitive matter, click HERE search our knowledge base or find additional support options HERE.

Thanks and have a great day!

[SmallTR]

My phone runs iOS 17.2.1 but I am not using my phone or any app to scan. I am doing it by pressing the buttons on the printer. 

[normadel]

What is the converter you have?

[SmallTR]

I believe the port on the back of the printer is a USB – B port. So the connector connects that port to my USB – C thumb drive.

[normadel]

You're going about this wrong. That USB-B port on the printer is where you connect a COMPUTER, not a thumb drive. It's the input location for data from the computer, not an output to a storage device. 

The printer has to have a USB port for plugging a thumb drive into. Does it? Typically it's a USB -A port. If it does, then I suppose you could use an A-to-C adapter, if there is such a thing.  If not, you can't scan to a thumb drive, only to a computer.

You're getting the "no computer connected" message for an obvious reason. Are you using wireless to print from computer to printer?

[normadel]

Also, if you set the printer to use WiFi to connect to your computer, the USB-B port is likely deactivated.