Rohm Co., Ltd.

Kaoru Muraki

Masatoshi Nakanishi

Kuniaki Nakamura

A thermal print head includes: a head substrate on which a plurality of heating resistance units are formed; a heat sink thermally connected to the head substrate, a recess being formed in a back surface of the heat sink which faces a surface to which the head substrate is connected; a metal member arranged in the recess; and an adhesive arranged between a bottom surface of the recess and the metal member. The recess viewed from a direction perpendicular to the back surface includes: an area where the metal member is arranged, and a groove area where the metal member is not arranged. A portion of the adhesive is arranged in the groove area.

Thermal print head, thermal printer, and method of manufacturing heat sink

A thermal print head includes a heating resistor for forming images on a print target by generating heat, and a driver for controlling power supply to the heating resistor. The thermal print head also includes a storage unit and a controller. The storage unit stores print data inputted from outside. The controller causes a transfer action and a printing action to be repeated alternately, wherein the transfer action includes retrieving print data from the storage unit and transferring the retrieved print data to the driver, and the printing action includes causing the driver to retain the transferred print data and supplying power to portions of the heating resistor selected in accordance with the print data retained by the driver, so as to conduct printing.

Thermal print head, thermal printer and printer system

In a thermal headof the present invention, a head-side I/Fincludes: an LVDS receiverthat receives a low-voltage differential signal from a set-side I/Fand converts the low-voltage differential signal into a single-end signal that is then outputted; a decoderthat divides an output from the LVDS receiverinto a data signal string DAT and a trigger signal TG; and a clock generating sectionthat generates a clock signal CLK that is synchronized by the trigger signal TG, and a driver circuitreads a print data signal DI and various control signals in response to the clock signal CLK and drives a heat generating element according to the print data signal DI and the various control signals.

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Kyoto, Japan

Kaoru Muraki