PRINTER HEAD OPERATING LENGTH DETECTING METHOD

摘要

generating a loading signal of each pin depending on a dot formation of a print data in a print mode(201); increasing a register value matching to the pin being driven(204); storing a data of a register to a non-volatile memory if a line feed is detected during a register increment process(206); comparing a number of data driving times with a reference data sequentially(207); and turning back to the print mode if a pin driving number is small(203), or stopping the printer mode and noticing that the life time of the printer head pin is over if the pin driving number is large(208).