| 摘要 |
<p>PURPOSE:To prevent such a case where a printer receives the heat dissipated from an electric parts and the print quality is deteriorated by covering the primary electric parts with a member made of a steel plate to turn them into a unit and to separate this unit from the printer and providing a cooling fan to a rear plate provided at the back side of a display unit. CONSTITUTION:The primary electric parts such as a power unit 12, a display device 2, a main control substrate 11, etc., are covered with such members as a bottom plate 5, a printer case 9, etc., made of a steel plate and turned into a display device unit 28. Thus the unit 28 can be separated from a printer device 8. As a result, it is possible to prevent such a case where the device 8 is affected by the heat dissipated from the unit 28 and the print quality is deteriorated. At the same time, a cooling fan 14 provided to a rear plate 15 functions to transmit the air current fed through an intake hole 29 of a back cover 24 through a vent hole 31 of an upper plate 16 and to cool the substrate 11, the devices 12 and 2, etc. In addition, the cooling air supplied through a lower vent hole 32 formed to the bottom surface of a base 25 cools the lower part of the unit 28.</p> |
