HP OfficeJet Pro 8100 Missing or Damaged Ink Error

--- If you have installed a new or refilled 951 cartridge (or HP 950XL, 951XL high yield cartridge) into your HP OfficeJet Pro 8100 and you observe a or 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 If there is poor electrical continuity contact between pins and the cartridge&then errors such as or will be displayed. 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. Other printer error messages which could signify a PRINTHEAD problem include “Ink Cartridge “Cartridge Damaged”, “Printhead Failure” or “The following cartridges are for use in this Printer”. --- Supported HP 950/951 Ink Cartridges 950 Black CN049 951 Cyan CN050 951 Magenta CN051 951 Yellow CN052 950 XL Black CN045 951 XL Cyan CN046 951 XL Magenta CN047 951 XL Yellow CN048 Supported Printer Models: HP OfficeJet Pro 8100 HP OfficeJet Pro 8600 HP OfficeJet Pro 8600 HP OfficeJet Pro 8600 Premium HP OfficeJet Pro 251dw HP OfficeJet Pro 276dw MFP HP OfficeJet Pro 8100e HP OfficeJet Pro 8610 HP OfficeJet Pro 8615 HP OfficeJet Pro 8616 HP OfficeJet Pro 8620 HP OfficeJet Pro 8630 HP OfficeJet Pro...