This is very simple to install ink cartridge on HP printer but if you are a new user then it can be difficult for you. You can follow these given steps to install new ink toner.
1. Open the frontal door of HP printer.
2. Remove the old ink toner.
3. Unpack the ink cartridge and remove the taps.
4. Install the ink toner at the place of the old ink cartridge.
Finally, you can send a test print job and make sure that you are able to fix the problem. If you have any hiccups while installation just call on HP printer tech support number 1-800-234-6190. Through this number, you can reach to customer care technicians.