The HP LaserJet Pro 4003dn is a monochrome laser printer with a print speed of up to 40 ppm (A4) and a resolution of 1200 x 1200 dpi. It features a 1200 MHz processor, 256 MB of RAM, and automatic duplex printing. The standard paper input includes a 100-sheet multipurpose tray and a 250-sheet input tray, with an optional third 550-sheet tray available. Connectivity options include USB and Gigabit Ethernet. Key specifications Print speed: Up to 40 ppm (A4), 42 ppm (Letter) Print resolution: Up to 1200 x 1200 dpi Processor: 1200 MHz Memory: 256 MB Duty cycle: Up to 80,000 pages per month Recommended monthly page volume: 750 to 4,000 pages First page out: As fast as 6.3 seconds (A4, ready) Duplex printing: Automatic Paper handling Input capacity (standard): 100-sheet multipurpose tray and 250-sheet input tray Input capacity (optional): 550-sheet tray Output capacity (standard): 150 sheets Supported media types: Plain paper, EcoFFICIENT, light, heavy, bond, colored, letterhead, preprinted, prepunched, recycled, rough, envelopes, and labels Connectivity and compatibility Connectivity: 1 x Hi-Speed USB 2.0, 1 x Host USB at Rear Side, Gigabit Ethernet 10/100/1000BASE-T network Mobile printing: HP Smart App, Apple AirPrint, Mopria™ Certified Supported operating systems: Windows 11, 10, Android, iOS, macOS 10.15 (Catalina) and later, Chrome OS Physical characteristics Dimensions (W x D x H): 381 x 357 x 216 mm (without trays) Weight: 8.56 kg Display: 2-line backlit LCD graphic display