Hello guys. I had buy this printer 2 years ago. And still its working fine. The printing process is goes through the cartilage of the printer. It has 2 cartilage one is for black and another is for yellow, magenta and cyan. It can print upto 100 to 500 pages. It had inbuilt scanner that is awesome. It can scan and print. You can also operates it with your smartphone, for this you just have to connect it with OTG cable and download the HP plug in service. It has some good internal features like: - it can detect that the printer door is open, shortage of pages and many more. It is pocket friendly and done great works.