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B-1
Appendix B
Host Computer
Interface
B
This appendix describes the signals used in the laser printer’s parallel, USB,
and serial (option) interfaces. It also lists pin assignments, signal functions,
timings, connector specifications, and voltage levels. For details on the
network interface, refer to the IB-21E/IB-22 User’s Manual contained on the
CD-ROM that is supplied with the printer.
This appendix explains the following topics:
• Parallel Interface
• USB Interface
• Serial Interface (Option)
• RS-232C Protocol