Suits AL-C900/C1900 – 45,000 pages black, 11,500 pages colour @ 5% coverageAcuLaser C1900/C900 Photoconductor Unit – The drum cartridge lies at the heart of the laser printing system so high quality and durability are a must! Epson drum cartridges are manufactured to high specifications with tight tolerances to ensure optimum mechanical and quality performance.