An electrochemical fuel cell stack with improved reactant manifolding and sealing includes a pair of separator plates interposed between adjacent membrane electrode assemblies. The control system also provides a cool-off period after a lamp-off cycling event is detected during which time restarting of the lamp is inhibited. The hydrostatic transmission comprises a variable hydraulic pump, a first hydraulic motor fluidly connected to the hydraulic pump via a fluid passage, and a housing with a port fluidly connected to the fluid passage. A retaining bar is situated at the top edge of the snap-lock recess entrance, thereby constituting an engagement section after the insertable hook is slipped in and, furthermore, a pendant release button extends laterally parallel to the top side of the passage. As a result of the linear motion of the Scotch yoke, the position of the first printer part can be controlled.