I purchased a HP Color Laserjet 2600N in 2006. I have always used HP's original toner cartridges. Never has the printer needed any repairs and still produces excellent quality prints. I use 2 black toner cartridges a year and one 1 each on the color cartridges as I am not retired. When working I used a lot of toner cartridges.
Always have purchased HP printers and scanners. I've had this model 2605dn laser printer since 2006 and it still performs as if it was unpacked right out of the box and the ink lasts as stated, never any issues.