Abstract: There is disclosed a thermal printer with memory to memorize pattern information which has previously been printed by a thermal head, a converter connected to the memory and to convert the pattern information memorized in the memory into time information, and a device connected to the converter and to cause new pattern information to be printed by the thermal head on the basis of the timing signal to be obtained from the converter.

Abstract: A heat transfer printer prints information while sequentially driving dots of a thermal head to urge them against a platen through a printing paper sheet and a transfer ink ribbon. The printer has a pulse motor or the like which carries the transfer ink ribbon at a speed relative to the stationary printing paper sheet for performing heat transfer printing with the thermal head.

Abstract: A character generator capable of storing character patterns at different addresses comprises a memory for storing character patterns corresponding to characters. Each of the character patterns includes a plurality of elements and one of the plurality of elements is stored apart from the remainder of the elements in the memory. A signal generator generates signals corresponding to the number of the plurality of elements and an address signal generator generates address signals for obtaining access to each of the character patterns stored in the memory. An address converter gains access to each of the character patterns stored in the memory in accordance with the address signals and the signals generated by the signal generator.

Abstract: A thermal printer includes a memory for storing recording information supplied to a thermal printing head, and control circuitry for comparing the recording information stored in the memory with new recording information supplied subsequently to the previous recording information to the thermal printing head to control drive time time of the head for the new recording information in accordance with an outcome of the comparison.