Compatible HP CF233A (33A) Black Toner. The toner approximately lasts 2,300 pages, with the same quality as the original manufacturer toner. Neither does it reduce the warranty nor affect the printer quality. It does not require previous manipulation (it includes a chip).
Compatible HP CF234A (34A) Drum. The drum lasts 9,200 pages, approximately the same as that of an original drum. Please remember that the drum is not the same as the toner: the toner is placed above the drum. Neither does the compatible drum damage the printer nor invalidate the warranty.