Features 1、ABS Materials: Print head is made of high quality ABS materials, it is lightweight, rust resistant, fade resistant and durable. 2、Stable Performance: Print head replacement has stable performance and high reliability, suitable for replacing your broken products. 3、Applicable Model: Print head replacement is perfectly suitable for HP 950 8600 8610 8620 8650 251DW 276DW printer. 4、Guaranteed Quality: functional test after completion of production; functional test before delivery. The quality is guaranteed. 5、Good Workmanship: Adopting Exquisite workmanship, beautiful appearance design, providing you great using experience. Specifications Item Type: Print Head for HP Material: ABS Color: As Pictures Shown Weight: Approx. 220g / 7.8oz Application: for HP 950 8600 8610 8620 8650 251DW 276DW If the printer fails to recognize the print head, the following reasons are common: 1. The ink cartridge is not the original unrecognized print head, so the ink cartridge needs to be replaced. 2. If the metal contact points of the ink cartridge or print head are dirty, use a clean soft cloth or alcohol cotton ball to wipe the metal contact points of the ink cartridge and pen holder, dry them naturally, and then plug them back for testing. 3. If the printer is still unrecognized, reset the print head after restoring the factory settings. Package List 1 x Print Head