HP LaserJet Enterprise M507 M507dn Desktop Laser Printer - Monochrome - 45 ppm Mono - 1200 x 1200 dpi Print - Automatic Duplex Print - 650 Sheets Input - Ethernet - 150000 Pages Duty Cycle - Plain Paper Print - Gigabit Ethernet - USB - Filo CleanTech
Best Buy: Brother Laser Printer Color 2400 x 600 dpi Print Plain Paper Print Desktop Black/White HL-4570CDW
Ricoh Aficio SP 4510DN Business Laser Printer 1200 x 1200 dpi " Renewed " | eBay
Are there any color laser printers on the market that are capable of greater than 1200x1200 DPI resolution for less than $500? - Quora
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HP LaserJet Pro M479fdn Laser Multifunction Printer - Color - Copier/Fax/ Printer/Scanner - 29 ppm Mono/20 ppm Color Print - 600 x 600 dpi Print - Automatic Duplex Print - Up to 50000