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US 6,714,226 B2Granted
Thermal head and controller for controlling the same
AssigneeShinko Electric Co., Ltd.
InventorsTakashi Kubota, Yosikazu Miyasita, Sigeyuki Kawamura
Life of this patent
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AssigneeShinko Electric Co., Ltd.
InventorsTakashi Kubota, Yosikazu Miyasita, Sigeyuki Kawamura
Estimating the term…
A thermal head includes a metal substrate; an insulating layer formed on the surface of the metal substrate; a plurality of heating elements disposed on the surface of the insulating layer, the heating elements being arranged with a predetermined pitch along a plurality of lines in a main scanning direction, the plurality of lines being spaced apart from each other in a paper-feeding direction perpendicular to the main scanning direction; and a heat radiating element projecting from the surface of the metal substrate to the side where the insulating layer is disposed. Although most of the heat generated by the respective heating elements is transferred to an ink ribbon or print paper, residual partial heat is absorbed by heat radiating means via the insulating layer and radiated into the atmosphere, which suppresses thermal interference among the heating elements.
A thermal head controller for controlling a thermal head for use in a printer, said thermal head serving to form an image with at least one color on print paper, said thermal head including a preheating heater and a printing heater, said thermal head controller comprising:
A thermal head controller for controlling a thermal head for use in a printer, said thermal head serving to form an image with one or more colors on print paper, said thermal head including a preheating heater and a printing heater, said thermal head controller comprising:
Dependencies are inferred from the claim text.