| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a printing device in which degradation of printing quality can be prevented by cooling uniformly plural light-emitting elements.SOLUTION: A printing device comprises: a printing part which can discharge liquid to a recording medium; a substrate 61 in which plural fixing holes 611, 612 are formed; a light-emitting element row which can irradiate the liquid discharged on the recording medium with light and in which plural light-emitting elements are aligned in a row in the transportation direction of the recording medium at one side surface 61a of the substrate 61; a heat conducting member 62 which includes a fixing surface 62a, and in which the substrate 61 is fixed to the fixing surface 62a under a state that the fixing surface and the other side surface of the substrate 61 face to each other, and which has higher heat conductivity than the substrate 61; and plural fixing members 629 which are inserted into plural fixing holes and fix the substrate 61 to the fixing surface 62a. At least one of the plural fixing holes 611, 612 positions between a first light-emitting element and a second light-emitting element which are adjacent to each other in the light-emitting element row.</p> |
