A method of brazing an aluminum alloy material, which is a Nocolok brazing method of the aluminum alloy material, in which the method satisfies the condition:Ts\u2266Tf\u2266Ts+15\xb0 C. At the plug portion a side and a cylindrical wall project from a top board. The protective shell includes a shell body and a lens device. The adaptation of the retentive material can be performed by the end user, health care provider, or anyone trained in the art. The medium tray and the feeder frame are drivingly coupled via a link.