Suitable for Cartridge T6715 T6716 T3661 T04D1 T04DO decoder resetter Solve the problem that the traditional decoder is left for a long time, the electronic is exhausted, and the is dead or low when in use The outflow of electronic corrodes the decoder, and the decoder cannot be used normally Align the chip with the corresponding groove so that the probe corresponds to the contact of the chip on the maintenance box. Place the two components close to each other. If the red light is on, it means the contact is correct and good.After about 5 seconds, the red light turns to green light, which means that the chip record of the maintenance box has been refreshed. Check the amount of used ink, if the amount of used ink is , please clear the used ink, and then install the maintenance box and restart the system normally; Material:ABS colour:White Package Contents: 1 * decoder Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.