Toner Cartridges, Maintenance Kits and Parts

2 Items
Black Genuine Toner Cartridge High Yield, 20,000 pages
Black Genuine Toner Cartridge Standard Yield, 10,000 pages
The ML 4551N uses SAS ML-D4550A (SAS MLD4550A, SAS SU682A) and SAS ML-D4550B (SAS MLD4550B, SAS SU689A) toner cartridges. SAS ML-D4550A yields 10000 pages; SAS ML-D4550B yields 20000 pages.
SAS ML-D4550A (SAS MLD4550A, SAS SU682A) prints 10000 pages, SAS ML-D4550B (SAS MLD4550B, SAS SU689A) prints 20000 pages. Choose SAS ML-D4550B (SAS MLD4550B, SAS SU689A) for high-volume printing (lower cost per page); SAS ML-D4550A (SAS MLD4550A, SAS SU682A) costs less upfront for occasional use.
The SAS ML-D4550B cartridge has an approximate yield of 20000 pages.
When the ML 4551N throws a "Supply Problem" error, the printer often simply can't read the cartridge chip. Give it a full power-cycle, take the cartridge out and put it back securely, and lightly buff the metal contacts with a dry, lint-free cloth. If it persists after all that, the cartridge is likely worn — install SAS ML-D4550B.