Developer unit for Lexmark CS820 / CX8xx – 300000 pages, laser

Replacement developer unit compatible with Lexmark CS820 and CX8xx series laser printers. Designed to restore and maintain consistent image quality and stable toner transfer over a long service life, this developer unit supports a rated page yield of 300000 pages and is intended for professional office environments where print density stability and reduced service interruptions are important. Package weight is approximately 1.91 kg. This developer is engineered to work with Unison toner and is part of Lexmark's managed supply ecosystem.

Advantages

The developer unit delivers long-life system reliability and consistent image quality throughout its rated life, helping to maintain uniform print density and reduce the need for frequent maintenance. It is designed to integrate with Lexmark’s shake-free print system and Unison toner formulation to promote stable toner transfer and predictable yields. As a Lexmark supply, it participates in cartridge collection and return programmes to support recycling and controlled remanufacture.

Suitable for

• High-volume office printing with Lexmark CS820 and CX8xx series printers
• Environments requiring consistent print density and image stability
• Facilities aiming to reduce service interruptions and maintenance frequency
• Organisations using Lexmark’s recycling and return programmes

Key specifications

• Compatible models: Lexmark CS820 and CX8xx series
• Page yield: 300000 pages (rated)
• Print technology: Laser
• Designed to work with Unison toner formulation
• Package weight: approximately 1.91 kg

How to use

Install the developer unit according to the printer manufacturer’s service instructions: power off the printer if recommended, open the designated access panel, remove the spent developer unit and insert the replacement in the correct orientation until it clicks or seats securely. After installation, follow any on-screen prompts or printer menu instructions to register the new developer unit so the printer recognises the replacement and resets lifecycle counters. Dispose of the used developer unit through Lexmark’s return programme when instructed.

Recommendations

Use genuine Unison toner supplies and follow Lexmark’s return and recycling procedures. Replace the developer unit at the end of its rated life to maintain print quality and to ensure compatibility with printer firmware updates that protect against unauthorised consumables.