An aligning unit aligns a front end of a sheet bundle stacked in a tray in a discharging direction. The rectangular box configuration serves a three-fold purpose. The third red LED light emitter is for emitting red light through the clear second area simultaneously with light transmitted through the red first area, whereby the first and second areas are adapted to collectively form a contiguous red illuminated surface area. The connection state information is stored in a special DMA descriptor that is stored in a ring buffer area of a buffer memory that is accessible by a host processor when an interrupt signal is received. This massager may also include an inflatable support bladder positioned beneath the massage bladders, another pump that supplies fluid to this support bladder, and a carrier plate on which the pumps are mounted, this plate being configured so as to aid in attaching the seat massager to the frame of a seat into which the seat massager is to be installed. A first wireless communication device is joined to a first group of wireless communication devices, and a second wireless communication device is joined to the first group and to a second group of wireless communication devices.