Hi, I am marryalen working with HP. Is your HP printer printing too light ? And you don't know how to deal with it, So don't worry about it. I am here to assist you. This issue comes for several reason like: Empty or defective toner cartridges , Dirty Print Head , Transfer Roller Problem , Low Ink or Toner Density Setting etc. I am 24/7 available for your support to deal with these issues.