| 摘要 |
PURPOSE:To prevent a print head from stopping to print at a high temperature by providing a fan for cooling the head, and a mechanism for transmitting power, and utilizing spacing operation at a carrier section for driving of the fan. CONSTITUTION:A print head cooling mechanism has a fan 2 placed on a carrier 3 for placing a print head 1, one-way clutches 4, 7 for transmitting power to its drive shaft 5, and a wire 6 for rotating them. When the carrier 3 is moved leftward, the clutch 4 is rotated to transmit rotary force to the shaft 5 to rate the fan 2. When the carrier 3 is moved rightward, the clutch 7 is rotated, to similarly rotate the fan 2. Thus, air is fed to the head 1 by the spacing operation at the carrier section 3 thus suppressing temperature rise. |
