This electronic card is suitable for HP100, HP120, HP130, HP500,HP800:
(1) Turn off the power of the printer, pull out the plug;
(2) Disassemble the outer cover of right side of printer (on one side of plug)；
(3) Insert the short circuit linker of JP1 to corresponding position according to the type of the printer (for example the picture below is a printer of HP130, the short circle linker has already put on the correct 130 position)。
(4) To HP500, HP500PS, HP800, HP800PS model, pull out the 9 core plug of J4 and insert to the J4_ 500/800 electronic card, then insert the 9 core of P4 _ 500/800 electronic card to J4 socket , other sockets are not connected ; To HP100, HP120, HP130 model, pull out the J1, J3 of the machine separately and insert to J_ 1x0 and J3 _ 120/130 electronic card (HP100 is J3 _ 100)on the socket, other sockets are not connected.
(5) Fix the electronic card on the plastic framework.
(6)Install the outer cover , then started the machine.