A method for re-routing communications based on link quality includes establishing a first wireless communication link with a mobile station. At a folded position, the arm rests are pivotally and upwardly folded towards the back supporting arms respectively so as to fold up the chair frame correspondingly, and at the unfolded position, the arm rests are pivotally folded to transversely extended from the back supporting arms so as to provide two arm resting surfaces respectively for substantially supporting user’s arms thereon. When the image processing device 1 defines a pixel point as a non-boundary point of the image, the image processing device 1 continues to search for a boundary point from predetermined pixel points until all boundary points have been found unless it is determined that the image does not include an object. A set relief area is provided for the portion of the document sets containing the fasteners. A spool having a plurality of magnetic windings is disposed about the stem and spaces the plurality of windings from the flowtube. The first and third electrodes are each in a laminated structure including a first layer being transmissive, and a second layer being transmissive and having a refractive index higher than a refractive index of the first layer.