1 of 1 people found the following review helpful
2.0 out of 5 stars
Look after your printer, 10 Aug 2012
The cost of toner cartridges is incredibly expensive and manufacturers always recommend that you use their own products. When I replaced my original HP cartridges with these, I didn't expect the ensuing problem. Every copy printed with these had black toner marks over most the page with a shadowed version of the text and images. Everything I tried to fix the problem failed to have any effect; once I had replaced the black toner cartridge with a new genuine HP cartridge, my printouts returned to normal quality. An expensive mistake, though it's strange how the colour cartridges don't seem to have the same effect. It may just have been a faulty cartridge but it has convinced me that the genuine cartridges are going to be more reliable and, in the end, I increased my costs by trying to save money.