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Purchasing link: https://www.amazon.com/Brother-HL-L6210DW-Business-Monochrome-Networking/dp/B0CGC9HPNH/?th=1
HP Laserjet P3015x (~$550-$600) High volume enterprise level workhorse printer, double sided, letter-size, black and white printer.
Last checked on Amazon:
http://www.amazon.com/dp/B002JEB162/ref=psdc_172648_t2_B003N3DOYK
HP Laserjet P3015dn (~$400-$500) Lower-end consumer version of the P3015 line. High volume workhorse printer, double sided, letter-size, black and white printer.
Review here:
http://www.pcmag.com/article2/0,2817,2365942,00.asp
Last checked on Amazon:
http://www.amazon.com/dp/B002JE7FBW/ref=psdc_172648_t1_B002JEB162
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Xerox Phaser 3610DN ($500-600) Replacement for 3600DN. Black and white double-sided printer. This printer is ok for a small office, but really recommended for a single user environment.
Last checked on Amazon:
http://www.amazon.com/Xerox-3610-DN-Wireless-Monochrome/dp/B00ET9IA5A/ref=sr_1_1?ie=UTF8&qid=1400174379&sr=8-1&keywords=xerox+3610+dn
Brother HL-L2300D Monochrome Laser Printer with Duplex Printing (~$100) Small footprint personal black and white double-sided laser printer. This small laser printer is for low print volume, single user environments only. It sacrifices performance for its small size. Price per page is significantly more per page but if the user doesn't really print that often, this is the ideal printer. For individual users, the decrease in performance compared to larger capacity laser printers is not noticeable if they are replacing any ink jet printer. No WiFi.
This printer replaces the Brother HL-2240D
Last checked on Amazon:
https://www.amazon.com/Brother-HL-L2300D-Monochrome-Printer-Printing/dp/B00NQ1CLTI/ref=psdc_172648_t3_B004A16L2Q
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