Feature: 1. Applicable Scene: This printer printhead is suitable for HP OfficeJet 6600/6100/6700/7110/7510/7512/7610/7612. 2. High Quality Materials: The semi finished print head housing is made of high quality ABS, which is more wear resistant, strong and durable. 3. Excellent Performance: High performance upgraded 933 932 print head chip, faster ink cartridge identification, smoothing inkjet, clear printing and bright colors. 4. Running Smoothly: Tested many times to ensure printhead performance and keep your printer running smoothly. 5. Installation: The kit contains 1 print head, which does not have contacts installed, you need to remove the contacts of the original print head and install it before you can use it. Specification: Item Type: Semi Finished Printer Head Material: ABS Suitable: for HP OfficeJet 6600/6100/6700/7110/7510/7512/7610/7612. Package List: 1 x Printer Head Note: Use suggestions:1. The surfaces of the print head must be protected and must not be touched, because its surfaces layer is made of aluminum plate, and the inner layer is coated with crystal oscillators and small ink tubes. Once in contact, it deforms or breaks, causing the printhead to be scrapped and unable to work.2. When installing the print head, be sure to cut off the power supply and install it in place. After the installation is completed, gently push it left and right with your hands to check whether it is flat. Turn on the power after confirming that it is flat, because if the print head is not in place, the print head can easily break when the carriage moves.3. Do not carry ink cartridges when starting up, and ensure that the ink is in good contact with the socket, and do not touch the feet, otherwise the print head will be short‑circuited and burned4. Check whether there is insufficient water in the ink cartridge, and check whether the small cleaning blade and the ink suction pump are dirty5. There is air in the newly installed print head, which may not work at the beginning. The air in the print head must be exhausted to work properly.The printer can be cleaned intermittently by removing the air in the print head (only two times at a time, then stop for 30 minutes, and then clean 2 times)6.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.7.Please note that the product is shipped as a semi‑finished print head without contacts installed, and requires customers to disassemble the contacts of the original print head before it can be used.