Some dot matrix printers, like the NEC P6300, may be upgraded to print in colour. This is obtained in the use of a 4-colour ribbon mounted on the mechanism (offered in an update package that replaces the standard black ribbon mechanism following set up) that raises and lowers the ribbons https://3in1printer56555.getblogs.net/37874254/a-simple-key-for-quality-a4-copy-paper-unveiled