HP LaserJet Pro 400 Printer Guide: Compare Models & Costs

The HP LaserJet Pro 400 series has undergone a significant transition in 2026, shifting from traditional hardware to AI-integrated and quantum-resistant printing solutions. While legacy models like the M428fdn remain workhorses in the B2B sector with a 22.1% market share Alibaba, the series is being officially succeeded by the HP LaserJet Pro 4000/4100 line Fidelity.

Product Lifecycle & Market Status

* Legacy Models (M401, M402, M404): These are officially retired from HP's primary retail lineup but remain highly active in secondary markets. Refurbished M402dn units are currently trading between $150–$165 in wholesale channels Alibaba.

* Active & Transition Models (M428fdn, 4001/4002): The 4001/4002 series was discontinued in March 2026 to make way for the new AI-powered generation Fidelity. The M428fdn continues to dominate the monochrome multi-function segment due to its reliability Alibaba.

* New 2026 Portfolio: The newly launched 4000/4100 series features TerraJet Toner, offering 11% more pages and 25% lower ongoing costs compared to previous generations Fidelity Stocktitan.

2026 Market Trends & Innovations

* Quantum Security: The latest Pro 400 series includes the world’s first quantum-resistant protection for SMB printers, utilizing post-quantum digital signatures to protect firmware from future security threats Fidelity Stocktitan.

* AI Productivity: Integrated AI tools now automate document formatting, naming, and sensitive data redaction. The Microsoft 365 Copilot integration allows for direct document summarization and translation at the printer panel Fidelity.

* Hybrid Work Optimization: A 50% increase in document processing speed and enhanced remote management via the HP app cater to the ongoing demand for flexible office environments Fidelity Hp.

Detailed inventory data for these models and verified wholesale suppliers are provided in the files below.