Flexible rule-based information system allows information originators, administrators, recipients, and requesters to control and influence the flow of and access to information. A tensioning bow imparts a tension across a rear portion of the roof covering when the foldable top is disposed in a roof closed position. Cooling fluid pressure presses the conduit to the heat emitting parts of the print head modules. The invention can be applied to bi-directional transfer of information and to the connection of a controller circuit board to a plurality of peripheral boards.