It is possible that the card is formatted in FAT32 which does not work (FAT32 id c, or LBA). To use it on the printer, you need a FAT32 id b because Windows 10 is by default in FAT32 id c.
To choose the right FAT32, you have to use GPARTED on a Linux system (Ubuntu 18.04).
Here are the steps:
1) Check the formatting with the command *sudo cfdisk /disk_name/* that the card
SD is in FAT32 id c (second last column).
2) Format the partition again with GPARTED (delete it then
recreate in primary type, FAT32)
3) Run *sudo cfdisk /disk_name/* again to verify
the effect of formatting by GPARTED
The partition is now in FAT32 id b and the SD card can be used on
More information about the differences between FAT32 id b and FAT32 id c
here : https://lists.debian.org/debian-user/2010/08/msg01142.html
If you still can’t format the SD card, you can contact us via the contact form.