If you own the HP Officejet 4620 printer and have problems with this, such as the fact that it no longer prints correctly in black or color, a factory reset might help you. The HP Officejet 4620 simply resets to factory settings as follows:
Resetting is only possible via a special service menu, which has to be activated by a secret key combination. This service menu can be displayed on the HP Officejet 4620 as follows:
- Turn on the printer
- Press the following keys: Home - Back - Home - Home.
Now "Engineering-Menu" appears on the display - now select "Service Menu".
Press left twice until "Reset Menu" is displayed - tap "Ok".
Navigate left until you see "00BE Reset" - Select this button to reset the HP Officejet 4620 to factory defaults.
You now know how to perform a factory reset on the HP Officejet 4620 to solve problems such as incorrect printing of black color.