Fuser Lower pressure roller Original HP Color LaserJet Pro M452, M454, M477, and M479 series

he fuser lower pressure roller for the HP Color LaserJet Pro M452, M454, M477, and M479 series (including models like M452dn, M452dw, M452nw, M377dw, M477fdn, M477fdw, M477fnw, M479dw, M479fdn, M479fdw) is a rubberized roller that works with the fuser film sleeve to apply pressure and heat, bonding toner to paper during printing. Below is a detailed description of this component, tailored to the specified HP models and focusing on the rubber lower pressure roller.
Key Details:
• Part Numbers:
• RM2-6435-000CN, RM2-6436-000CN, RM2-6431-000CN (interchangeable for these models, depending on supplier).
• Alternate: LPR-M452, LPR-M477 (OEM-quality designations for specific series).
• Material: High-durability, heat-resistant rubber (typically orange or pink in color, though grey/black variants exist), designed to withstand high temperatures and maintain grip for consistent paper feeding through the fuser.
• Function: The lower pressure roller presses the paper against the heated fuser film sleeve, ensuring toner is melted and fused to the page. Its rubber surface provides traction and even pressure to prevent paper jams and ensure print quality.
• Compatibility:
• HP Color LaserJet Pro: M452dn, M452dw, M452nw, M454dn, M454dw, M455dn.
• HP Color LaserJet Pro MFP: M377dw, M477fdn, M477fdw, M477fnw, M479dw, M479fdn, M479fdw.
• Note: These models use the same fuser assembly design for duplex (RM2-6418-000CN or RM2-6460-000CN) and simplex (RM2-6431-000CN) printing, making the lower pressure roller compatible across the series.
• Lifespan: Approximately 150,000–225,000 pages, depending on usage, paper type, and maintenance. Wear indicators include smudging, streaking, or paper jams due to a shiny or slick roller surface.