A bracket is provided to mount a shock absorber to a vehicle body. A plurality of substantially identical printhead modules are mounted on the support structure in a contiguous orientation. In a preferred implementation, a small RISC-like special purpose processor is implemented within a larger general purpose processor for handling the streams of dependent instructions. The other transmitter is connected by a passageway with the fluid in the valve outlet, measures the pressure of this fluid and transmits signals indicative thereof to the receiver.