A method of encoding data for transmissions from a source to a destination over a communications channel is provided. In the image forming apparatus, the image reading portion is loaded on three points that correspond to both corners on the scanning start position side and one corner on the apparatus rear side. A kit is described having an electrical-contact conductor with a concave surface conforming to a battery post, and a band clamp to symmetrically compress the conductor against the post. The signals from plural bins may also be routed to a central monitoring site. When the pressured fluid is introduced to the forward introduction port, it is clamped by a one-way movement of the piston. Said backlight module is arranged into the main-body rubber frame and lies below the support chip.