H-E Chip Resetter for Epson Stylus Pro 3800 / 3800C / 3850 / 3880 / 3890 / 3885 Ink Cartridge Printer Compatibility: Epson Stylus Pro 3800 / 3800C / 3850 / 3880 / 3890 / 3885 It could be reseted not only the Epson Stylus Pro 3800/3880 ink cartridge but also maintenance tank. The usage of Epson ink cartridge chip resetter: 1. Reset the Ink Cartridge chip before the ink level fall to 15%. 2. Fit the chip to the groove of chip resetter, and enable the probe of chip resetter contacts the contactor of the chips. 3. Press the 2 components together. If the red light gleams, it means the connection is fine. 4. Five seconds later, the red light turns to green, and it indicates the chip data has been refreshed. Very Important:Troubleshooting:a) After the red LED flashing, it stays on and does not turn green.1. The pins on the Resetter are not in good contact with the chip on the cartridge. The contact may be dirty or oily. 2. If the ink cartridge is not an original Epson brand ink cartridge, the chip may be not compatible with the Resetter.3. If the ink cartridge is an original Epson brand ink cartridge, the chip may be burned out or Epson may have changed the chip design. But our Resetter still can work with this kind of ink cartridge to reset and fulfill the level, only the green light would not shine. 4.If it doesn't work, it could be the lack of electricity, it's better to change a battery!b) The printing effect is not good.1. The quality of the ink you are using may be inferior. We recommend using inks that are specifically matched to Epson original colors and other characteristics. (Especially if you are printing digital photographs.)2. Air bubbles entrapped in ink. To avoid this, inject the ink very slowly. Also, allow the cartridge to reset for 24 hours with the ink exit nozzles facing down before using.