Reduced print quality from your OKI C9600 or C9800 printer Install a genuine OKI Magenta Image Drum to refresh print quality. As you use your OKI laser printer, waste toner and wear and tear on parts can lead to reduced quality and poor output. Installing a replacement imaging unit helps to renew your printer's mechanisms, leading to crisp blacks and vibrant colours. OKI printers use a separate image drum and toner cartridge, which helps to keep costs down and save money per page. This drum is designed to print up to 30,000 pages.