A system for joining two rails includes a rotatable disc in a slot in an end of a rail, where the disc has a pair of diametrically opposed notches, a pair of diametrically opposed first sectors having a first radius, and a pair of diametrically opposed second sectors having a second radius larger than the first radius. The code image quality checker includes a code image reader that captures the code image, performs binarization, detects the dots of the code image, and allocates a value of either 1 or 0 for each dot to provide dot arrangement data. In some embodiments, the composition can include at least three components. At least one secondary fusing device receives printed media from the first and second marking devices. The adhesive tape is adhered to the sheath in such a manner that the adhesive tape extends over one of the longitudinal edges of the sheath.