An electrical interlock system for including a power takeoff device operable in a first state to transfer mechanical energy from an associated combustible engine to an associated electric motor andor generator and operative in a second state to prevent the transfer of mechanical energy from the associated combustible engine to the associated electric motor andor generator. The first and second image forming sections are arranged in mutually different positions along a path for conveying recording paper. The routing logic selects the output port from a first output port and a second output port based on congestion information that is detected at one or more other routing logic communicatively coupled to the routing logic.