I cannot communicate with the product during installation. (Communication error message is displayed.)

Is simultaneous printing from multiple clients available?

During the set-up of the PS9000, an error message says that "The selected Brother PS 9000 is already registered" appears, and I cannot go to the next step.

"Communication error between PC and P-touch" error occurs when printing with the QL-500/550. What can I do? (QL-500/550)