Oki Data 44494201 Black Drum Unit 20000 Pages

What it is and who it fits

This original OKI black drum unit carries the part number 44494201 and is rated for 20000 pages. It is designed for the MC361, MC362, MC561, MC562, C330dn, C331dn, C530dn, C531dn and COREFIDO MC561DN series of laser printers. Offices that print high volumes of monochrome documents will find the yield matches their workload. The unit weighs 9.9 units and ships as a single cartridge.

When to replace the old drum

Replace the drum when print quality fades, streaks appear or the printer signals end of life after roughly 20000 pages. The jump is worth it if your current unit has passed that rated yield or shows visible wear on the photoreceptor surface. Continuing with a depleted drum wastes toner and risks damaging the fuser. Buyers who need colour output or a higher page rating should look elsewhere.

Installing and common pitfalls

Open the front cover, pull out the toner cartridge, then slide the old drum assembly straight out and insert the new one until it clicks. No tools are required and the process takes under a minute. The most frequent mistake is forgetting to remove the protective seal on the new drum, which causes blank pages. Another issue is seating the drum at an angle, which triggers a cover-open error.