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Last checked on Amazon:
http://www.amazon.com/dp/B002JEB162/ref=psdc_172648_t2_B003N3DOYK
HP Color Laserjet M553dn (~$600-$700) High volume workhorse printer, double sided, letter-size, color duplexing printer.
Last checked on Amazon:
https://www.amazon.com/HP-Enterprise-FutureSmart-B5L25A-BGJ/dp/B00UL4RQ3O/ref=sr_1_3?ie=UTF8&qid=1478200262&sr=8-3&keywords=laserjet+m553dn
Xerox Phaser 4600DN (~$1010-$1050) High volume, solid workhorse, doubled-sided, letter-size, black and white printer. This is now an old model and becoming harder to find.
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