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C-1
Appendix C
Host Computer
Interface
C
This appendix describes the signals used in the laser printer's parallel and RS-232C/RS-
422A interfaces. It also lists pin assignments, signal functions, timings, connector
specifications, and voltage levels. The RS-232C/RS-422A protocols are also covered. Finally,
it explains how to use the printer in a multi-computer environment.
This appendix explains the following topics:
• Parallel Interface
• Serial Interface (Option)
• RS-232C/RS-422A Protocol
• RS-232C Cable Connection