About HP LaserJet Pro 400 Color M451dw Replacement Parts
The HP LaserJet Pro 400 Color M451dw is a high-performance machine designed for demanding environments. Maintaining peak performance requires high-quality consumables and precision-engineered parts. All components listed below are verified against original OEM specifications to ensure 100% compatibility. Not sure which part number you need? Contact our technical team for a free consultation.
Paper Feed Components
2 parts foundCassette Pickup Roller Assembly
Separation Roller
Frequently Asked Questions — HP LaserJet Pro 400 Color M451dw Parts
About the HP LaserJet Pro 400 Color M451dw
The HP LaserJet Pro 400 Color M451dw is a high-performance color laser printer designed to boost productivity in small to medium-sized businesses. It combines fast print speeds with automatic two-sided printing and flexible wireless connectivity, allowing users to produce professional-quality color documents with ease from almost anywhere in the office.
Core Performance Specifications
- Print Speed: Up to 21 pages per minute (ppm) black and color.
- Resolution: Up to 600 x 600 dpi with HP ImageREt 3600.
- Monthly Duty Cycle: Up to 40,000 pages per month.
- First Page Out Time: As fast as 17 seconds from Ready mode.
- Display: 2-line LCD (text).
- Processor Speed: 600 MHz.
- Memory: 128 MB standard (expandable up to 384 MB).
Paper Handling and Media
- Standard Paper Capacity: 300 sheets (250-sheet input tray and 50-sheet multipurpose tray).
- Auto-Duplexing: Standard automatic two-sided printing.
- Media Weights: 16 to 47 lb (up to 176 g/m²; up to 220 g/m² with HP laser glossy photo papers).
- Standard Media Sizes: Letter, legal, executive, 8.5 x 13 in, 4 x 6 in, 5 x 8 in, envelopes.
Scanning and Copying Features
- Functionality: This is a single-function printer; scanning and copying features are not integrated.
- Advanced Features: HP Auto-On/Auto-Off Technology for energy efficiency.
Connectivity and Security
- Connectivity: 1 Hi-Speed USB 2.0; 1 Fast Ethernet 10/100Base-TX; Wireless 802.11b/g/n.
- Mobile Printing: HP ePrint, Apple AirPrint, Wireless Direct printing.
- Security Features: Password-protected network embedded Web server; SNMPv1/v2 community strings.
Physical Dimensions:
- Base Dimensions: 15.9 x 19.1 x 12.7 in (405 x 484 x 322 mm).
- Weight: 52.1 lbs (23.6 kg).

