Hello, my friend!
About your question,
I have communicated with our R&D team,
Because the picture display device has recognized the printer,
But the printer is not usable,
You need to check other information about the device,
Therefore, you are advised to contact the device provider and ISP to submit an order,
Huawei Enterprise Network Technical Support Hotline: https://e.huawei.com/en/service-hotline-query
Thank you!