Ink cartridge refills can be more cost effective than replacing cartridges every time your F4280 printer runs low on ink. If you refill your ink cartridges or install new cartridges and the ink monitor doesn't reset automatically, you can force a system reset to maintain the ink level monitoring system accuracy while you use your printer.
Open the printer cover. Squeeze the locking tab to lift the ink carrier cover. Lift the ink cartridges out of the printer.
Unplug the power cable from the wall. Disconnect the USB cable from the rear of the printer. Restart the computer.
Reconnect the USB cable. Plug the power cord back into the wall outlet. Install the ink cartridges in the carrier. Press the cover down on the carrier to lock the cartridges in place.
Close the printer cover. Turn the printer on to complete the system reset.