As said earlier, you must use the genuine ink cartridges. HP always suggests you go with authentic HP ink or toner supplies. Check whether the ink cartridges are inserted correctly and locked into its place. Make the cartridges and carriage contacts dirt-free. Detach all the cables and power cord connected to the printer. Reset the printer and wait for a few seconds. You can get to know about the printer 123hpcom features and install it in a right manner with our assistance with toll free number 1-888-597-9290.