Who times the original cartridge has sought the piece for 59, knows what price advantages of these cartridges here. I was a little nervous when I first times the cartridge was loaded, but they were immediately recognized. Healthy! Meanwhile, use 4 people in the circle of friends the same printer. Even with the refill cartridge. We are all satisfied. To adjust, the printer they are "grumbling" without recognized and used and keep it loose 1200 pages. The printer gets me every two months ne new black cartridge and still works perfectly. - Type of printer: only the Dell 1350cnw (on the other, I can not make any statement) - 10,000 pages Printer price make this toner including a print page price for color of 4Cent and S / W of 2cent from.