Another thing to consider is making a data only USB ( I use a sliver of electrical tape over the 5v+ line ) to stop any power draw between the usb port and the printer.
And, of course, check that you have a good power brick since shoddy ones always cause issues with pis.
To be honest sounds like you’ve got a gremlin jumping from one piece of equipment to another so maybe prayer, voodoo, holy water and or appeals to the deity of universal fundamental force of your choosing could help too.