New Canon MF663Cdw printer will not mount USB stick

[LarsPoulsen]

My new MF663 printer has some problems, so as a workaround I thought I would print my file to a PDF and print that from a USB stick.

I have two identical USB sticks: PNY 16GB FAT32. Both work fine on my Windows PC, but the printer refuses the other one: "An unsupported USB device is connected". ScanDisk finds no problem with the stick. How can I troubleshoot/resolve this?

[normadel]

How is the USB stick formatted? What Windows version do you have? Please answer these questions and we can go from there. 

[shadowsports]

Right off hand I don't recall all the supported formats but I believe fat32, exFat and NTFS work.  I just tried with NTFS and it works fine on my MF656....

[LarsPoulsen]

As mentioned up top, it is formatted FAT32. The puzzling thing is that it fails, while its brother works fine. It is likely to be something with the specific stick; just strange that I can't find anything wrong with it.

[normadel]

These gizmos can and do fail. Try using the troublesome one on a computer.

But.....even if it works on a computer, it should not be trusted. Toss it.

Buy another one. They're cheap.

[LarsPoulsen]

Oh, it works on my Windows-11 desktop - and SCANDISK finds no problem on it.

[normadel]

You are always taking a risk of failure with these things, and if it has been a problem for any device, take that as early notice.