A.When the service life of the ribbon ends, replace the core or ribbon in time
B.Print needle strap, check whether print head wear
A. The inked nylon is not compatible with the cartridge, use the compatible one.
B. There is no left twist in accordance with the product, twist to the right
Low ink content. Should increase the ink content or use the high density tape.
Inked nylon is not straighten out when people change the nylon, which cause the nylon stuck and reeled up by the gear wheels.Should open the cartridge and straighten out the nylon.