According to one embodiment, an apparatus may store a plurality of tokens. When an error occurs in transmitting a control information that indicates whether to use a radio resource using the persistent allocation scheme, the base station may retransmit the control information and thereby maintain a communication quality. The offset printing unit includes lower surface offset printing subunits configured to perform offset printing on a lower surface of a paper sheet subjected to the collect-printing by the collect-printing unit. The key enables either the host operating system or the guest operating system to use the access device. The high volume lens curing system is configured to cure multiple eyeglass lenses in a continuous manner.