The HP LaserJet Pro 400 series (specifically the M401/M402/4002 models) are high-speed, black and white laser printers designed for small-to-medium offices, offering print speeds up to 35–40 ppm. Key features include 1200 x 1200 dpi resolution, automatic duplexing, Ethernet connectivity, and mobile printing via Apple AirPrint or HP ePrint. Key Specifications (M401dne/M401n/4002dn Models)
Print Speed: Up to 35–40 ppm black (normal, A4/Letter).
Print Resolution: Up to 1200 x 1200 dpi (black).
First Page Out: ~8 seconds or as fast as 6.3 seconds on newer models.
Automatic Two-Sided Printing (Duplex): Yes
Monthly Duty Cycle: Up to 50,000 pages Recommended Monthly Volume: 750 to 3000 pages.Input Capacity: 250-sheet input tray, 50-sheet multipurpose tray (300–350 sheets total).
Processor: 800 MHz to 1.2 GHz.
Memory: 128 MB to 256