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Delivering 600–800W of radiant infrared heat from a quartz glass envelope, this fuser heater lamp is the exact thermal core your Brother laser printer relies on to bond toner permanently to paper. Without it, prints smear, ghost, or never set at all.

Overview

The Brother LM0644001 is a genuine replacement fuser heater lamp engineered for Brother monochrome laser printers and all-in-ones in the HL-L2300D, HL-L2320D, HL-L2340DW, HL-L2360DN, HL-L2360DW, HL-L2380DW, DCP-L2500D, DCP-L2520DW, DCP-L2540DN, MFC-L2700DW, MFC-L2703DW, MFC-L2707DW, MFC-L2720DW, and MFC-L2740DW series. It installs inside the fuser unit and restores proper toner fusing after the original lamp fails or degrades. The lamp operates at 220–240V AC and is designed for the operational life of the fuser unit, typically around 100,000 pages.

What stands out

• Halogen quartz infrared technology for fast warm-up and consistent fusing temperature.
• Nickel-plated steel terminals resist corrosion and ensure reliable electrical contact.
• Direct replacement for OEM part number LR2232001 — no modification needed.
• Rated for high-temperature, dry operating environments inside the fuser assembly.
• Supports a wide range of Brother printer models, reducing stocking complexity.

Technical details

• Product type: Fuser heater lamp
• Component type: Heating element
• Technology: Halogen quartz infrared lamp
• Rated voltage: 220–240V AC
• Estimated power consumption: 600–800W
• Primary material: Quartz glass tube
• Terminal material: Nickel-plated steel
• Installation location: Inside fuser unit
• Lifespan: Designed for fuser unit life (approx. 100,000 pages)
• Compatibility: Brother HL-L2300D, HL-L2320D, HL-L2340DW, HL-L2360DN, HL-L2360DW, HL-L2380DW, DCP-L2500D, DCP-L2520DW, DCP-L2540DN, MFC-L2700DW, MFC-L2703DW, MFC-L2707DW, MFC-L2720DW, MFC-L2740DW series
• OEM part number: LR2232001
• Application: Monochrome laser printers
• Heat generation method: Radiant infrared heat
• Operating environment: High temperature, dry
• Energy source: Electrical

Our verdict

If your Brother laser printer is producing smeared or unfused toner, this fuser heater lamp is the precise fix. It matches the original thermal output and physical dimensions, so installation is straightforward and print quality returns to factory standards. A dependable, long-life component for high-volume printing environments.