HP OfficeJet Pro 7740 Cartridge Problem

--- If you have installed a or 952XL black or color ink cartridge and you observe a ink or printer alert on your HP Pro 7740 (then it is possible that the internal PRINTHEAD may have a bent or contact or pins. When the cartridge is installed these pins make contact with the To verify pin condition, remove all 4 ink cartridges and using a flash light, carefully inspect the internal PRINTHEAD contact pins for visible damage. Each pin should be protruding outwards as shown. If the pin is bent down, it is possible to gently pry it back up with a small screwdriver. If a pin is broken, then the PRINTHEAD will need to be replaced. You should also carefully inspect the cartridge&smart chip surfaces for scratches or lines as this could cause cartridge errors to occur. If scratches are observed it is suggested to clean and reseat the cartridge to see if the problem can be resolved...if not then replace the ink cartridge with a new one. Other printer error messages which could signify a PRINTHEAD problem include “Ink Cartridge Failure", Damaged”, “Printhead Failure” or “The following cartridges are for use in this Printer”. --- Supported HP 952 / 952XL Ink Cartridges: 952 Black ( ) 952 Cyan (L0S49AN140) 952 Magenta (L0S52AN140) 952 Yellow ( ) 952 XL Black ( ) 952 XL Cyan (L0S61AN140) 952 XL Magenta (L0S64AN140) 952 XL Yellow ( ) 956 XL Black (extra high capacity) Supported Printer Models: HP OfficeJet Pro 7720 All-in-One Printer HP OfficeJet Pro 7730 All-in-One Printer HP...