A post-link optimization method for renaming non-volatile registers with unused volatile registers, then removing the non-volatile register storerestore instructions from a function prologepilog. The non-uniformity in the amount of added catalyst element within the substrate is thought to influence fluctuation in crystallinity of a crystalline semiconductor film that has undergone thermal crystallization, and exert a bad influence on the electrical characteristics of TFTs finally structured by the crystalline semiconductor film. The pre-transfer baffle assembly is arranged in a first position adapted for guiding the sheet of media toward the image transfer structure at an angle of less than ninety degrees, and the pre-transfer baffle automatically begins rotation to a second position as the sheet of media reaches a pre-determined position within a paper path. The housing lid is constructed in two parts and includes an inner lid and an outer lid. The cell may be a rechargeable lithium battery; however, it is preferably a fuel cell with all the additional devices for its autonomous operation is located in a self-propelled or towed trolley.