Brother DR-4000 Drum Unit 30000 Pages

DR-4000 drum

The Brother DR-4000 drum unit forms the imaging core of supported Brother mono laser printers, transferring toner to paper with precise electrostatic control. Drum assemblies define line sharpness, gray balance, and background cleanliness across thousands of impressions. Facilities teams specify genuine Brother imaging units to match engine calibration and maintain stable print quality between toner replacements.

With a rated life of up to 30000 pages, the DR-4000 supports long service intervals in busy mailrooms, back-office clusters, and shared workgroup devices. The photosensitive drum surface and charge roller work together to hold latent images that the laser writes during each print cycle. When page quality degrades with repeating marks or light bands, replacing the drum restores uniform density without adjusting software profiles.

Brother separates drum and toner in many mono platforms, allowing independent replacement based on actual meter counts. This modular approach reduces waste when toner exhausts before the imaging surface wears. Procurement can track DR-4000 separately from toner SKUs, simplifying cost allocation per department.

The integrated cleaning blade removes residual toner after each revolution of the drum cylinder. Charge roller voltage remains stable across the rated lifecycle when users follow Brother replacement intervals. Field technicians swap the module through front-access panels without removing the fuser assembly on supported models. OEM photoconductor coatings resist abrasion from developer interaction better than generic substitutes.

Key Features

• Extended Drum Life
  Supports up to 30000 pages before replacement under typical office coverage.

• Mono Laser Imaging

  • Designed for Brother mono laser print engines
  • Maintains crisp text and solid fills across the rated lifecycle

• Genuine Brother Components
  Factory-built drum, charge roller, and cleaning blade meet Brother tolerance specs.

• Service Meter Alignment

  • Works with printer page counters and maintenance alerts
  • Supports proactive swap schedules in managed print programs

• Stable Background Levels
  Reduces gray haze and streaking compared to worn third-party imaging units.

Specifications

What’s in the Box

• DR-4000 drum unit

• Installation instructions

Why Choose DR-4000

• OEM imaging parts preserve rated print quality on supported Brother devices.

• High page capacity reduces maintenance events in high-volume mono environments.

• Modular design lets teams replace drums only when imaging metrics require it.

• Genuine assemblies minimize contamination risk inside the print path.