requires that the type face be conformally curved platen bar 12 may have a slightly resilient back up surface behind the writing line such as insert 56 which may be of a plastic such as nylon platen bar 12 is adjusted for the thickness of the record material by lever 58 attached to shaft 60 platen bar 12 may be tilted for to to bottom impression depth control by means of a possible knob 62 shown dotted line attached to a transverse shaft 64 both shafts 60 and 64 are fitted with eccentrics on each end thereof which engage respective slots or holes in the printer frame structure which supports the ends of platen bar 12 a ribbon is generally indicated at 66 in the printing area between the carriage 14 and the platen face 54 the ribbon can assume one of two positions solid line and dotted line as collectively indicated at 68 the solid line position is assumed when at rest or during transport during imprinting the print mechanism pushes the ribbon to the approximate dotted line position parallel to the face of the platen 12 and the record material the print carriage 14 has a mechanism for making a line of imprints with individual type face bearing chips as shown.