How to Reset a HP F4280
The Hewlett Packard F4280 is a part of HP's line of all-in-one deskjet printers. If your F4280 is showing signs of malfunction, reset the device to solve certain issues associated with the printer. Performing a reset on the HP Deskjet F4280 will restore the printer back to its default values and settings. Use the printer's "Power" button to execute the reset process.
Turn off the F4280.
Disconnect the power cord from the back of the printer.
Reconnect the power cord to the printer.
Turn on the F4280.