| 摘要 |
PURPOSE:To remarkably enhance a print head in cooling efficiency, by a method wherein a cooling air flow generated from a centrifugal air blower is passed through a radiator to cool the inside of the radiator. CONSTITUTION:A centrifugal air blower 3a built in a radiator 2a consisting of radiator fins 6a, 7a is driven, whereby a high-speed air flow is generated from the periphery of an impeller 5a over the full radial range and over the full surface of the radiator. This high-speed air flow passes through an air flow path formed by the plurality of radiator fins 6a, 7a, thereby discharging the heat of the radiator fins 6a, 7a outside from the radiator 2a upwards and downwards while abruptly cooling the heat. Additionally, the high-speed air flow discharged downwards results in the direct collision with a printer carriage, which fixes a print head 1a. Therefore, with the printer carriage made of a heat-conductive material, e.g. aluminum, the aforesaid discharged high-speed air flow can cool the heat transferred from the print head 1a. |
