| 摘要 |
PROBLEM TO BE SOLVED: To securely hold a cover opening/closing the ejection opening of an ejection device at the fully opened position. SOLUTION: A fitting taper 44A is provided in an opening/closing cover 40, in an ejection device and a fitting groove 44B is provided around the ejection nozzle 28. The fitting taper 44A is fixed to the fitting groove 44B through the relative elastic deformation of the fitting taper 44A and the fitting groove 44B in the fully opening process of the cover 40 and it is made possible to retain the opening/closing cover 40 in the fully opened position. |
