An apparatus and a method are provided for lifting wellbore fluids from a distal section of a wellbore. The improved printer provides improvements to the platen assembly, rail assembly, service station assembly, printhead assembly and vacuum assembly to provide improved printing capability. In one embodiment a single fault in a scan chain is identified. The rubber dampered bearing body includes a rubber damper portion and a rubber cylindrical portion formed integrally with the rubber damper portion and extending toward the cylindrical portion. The active balun circuit includes a negative shunt feedback arrangement. An electrical load is electrically connected to the output line to be powered by the electrical output current.