Thermal head drive circuit and printer using the same

摘要

A thermal head drive circuit drives M number of thermal heads for printing one line and includes a delay unit that applies different time delays to M bits of print data to be supplied to the corresponding M thermal heads. The higher order the odd number thermal heads of the M thermal heads are, the greater are the time delays applied to the corresponding bits of the print data, while the higher order the even number thermal heads of the M thermal heads are, the less are the time delays applied to the corresponding bits of the print data.