I bought this after Christmas when our original cartridge was depleted. I bought a high yield cartridge. They're not cheap but cheaper per page this way. Excellent information on tracking.
Just purchased as a double pack. Not sure how long they will last as the last High yield black laserJet Toner cartridge lasted about 1 month and 16 days. The length of time the cartridge lasted seems very short for a very small church office usage. There is no way the church printed over 5000 copies of anything in 46 days. Not sure I would recommend the cartridge or printer if the usage time for the cartridge is so low. Will be tracking to see if this improves.