Manuals and User Guides for Lexmark C544DTN - Color Laser Printer 25/25 Ppm Duplex Networkfront Pic. We have 10 Lexmark C544DTN - Color Laser Printer 25/25 Ppm Duplex Networkfront Pic manuals available for free PDF download: Service Manual, User Manual, Product Study Manual, Wireless Setup Manual, Setup Manual, Quick Reference