Yes Speace, it probably is a 4P and not a 4Plus. I thought Sixto said it had a duplexer (which is not available for the 4P), but that was actually Palangi who posted that.
I'll make an appointment to have my eyes tested tomorrow.

I recommend using a JetDirect Print server over ethernet, it will be the most reliable and fastest connection. Or use an internal ethernet JetDirect card if the printer will support it. USB-parallel converters are not worth the trouble.

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