| 摘要 |
A reproduction apparatus machine control system adapted to transmit control information to a plurality of process subsystems without transmission lines uses two-way transmission of signals which are free to propagate between the process subsystems and a controller system without confinement to an electrical wire, cable, or optical fiber system. An enclosure surrounds the process subsystems and the controller system for preventing the leakage of transmitting signals to the area outside the enclosure, aiding the propagation of said signals within the enclosure, and substantially preventing the entrance of interference signals into the region surrounded by the enclosure.
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