Default USB setting of CT-P29ｘ is Virtual COM. This is the reason of recognition as Thermal Priner.
For the normal Windows driver installation, USB setting needs to be changed to Printer Class.

To change USB setting of CT-P29x, it is necessary to change DIP switch 3 to ON.
DIP switch is located inside of operation panel. It is necesasry to remove operation panel to access
the DIP switches.

Please refer to the User's manual for the details how to remove operation pabel.