If you want your AcuLaser C4000 laser printer to keep on performing at top level, you really need to make sure that the photoconductor unit is of a high quality. Photoconductors ensure that your toner is applied in a precise and sharp manner. Epson make sure that you have everything that you need to keep your printer running to its maximum capacity. This photoconductor unit boasts a yield of 30,000 pages and provides clean and clear printing that is as quick as it is visually appealing.