You can install the new ink toner on your HP printer via given steps. You should make sure the toner you have purchased is of HP brand.
1. Remove the empty ink cartridge from the printer.
2. Now you will have to unpack the ink toner.
3. Then remove the pink tap from the toner.
4. Now install the new ink cartridge inside the HP printer.
After that, you should call on HP printer customer service number which is all time available. You can find a complete solution for HP snags via this number
visit here: HP Printer technical support number