How reset the printer HP 8000, 8100, 8150 Officejet Pro.
These printers use the 
Black HP 940 Negro (C4902AN) 
Cyan HP 940 Cyan (C4903AN) 
Magenta HP 940 Magenta (C4904AN) 
Yellow HP 940 Amarillo (C4905AN) cartridges.
Information on how to refill these cartridges is given in our post on how to refill 940 HP ink cartridges. After refilling them, it is possible that the printer does not recognize them and says that the cartridges are emptied even though they are full, on this topic a post has been created.
The process is really simple as long as the steps given in this post are read carefully and pay attention.
Black HP 940 Negro (C4902AN) Cyan HP 940 Cyan (C4903AN) Magenta HP 940 Magenta (C4904AN) Yellow HP 940 Amarillo (C4905AN) cartridges.Information on how to refill these cartridges is given in our post on how to refill 940 HP ink cartridges. After refilling them, it is possible that the printer does not recognize them and says that the cartridges are emptied even though they are full, on this topic a post has been created.
The process is really simple as long as the steps given in this post are read carefully and pay attention.
- Press the “MENU” as many times as needed until the “SETUP MENU” is show in the screen. It has to be done consecutively.
- With the printer showing “SETUP” on the screen, press the ITEM button (TEMA in Spanish), until the SERVICE MESSAGE "ON-OFF" and then select "OFF"
- Press SELECT to save.
- Turn off the printer.
- Press the buttons with the “-” symbol in your printer and do not release them until the RESET/MAIN CONT message is shown.
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