C4943A HP 83 Yellow Ink PARTIALLY USED OEM - 55% FULL MINIMUM box-050536 The disk is a 500GB

The disk is a 500GB Upgrade to the original Hitachi (or Toshiba) HDD:

Tube system that carries ink from the ink cartridges to the print heads

This tool will easily remove air bubbles from the ink tubes and extend the life of the ink tube system and protect the print heads from an early death

System errors related to the air pressure system:

42" Ink Tubes & Trailing cable Z6100

C4943A HP 83 Yellow Ink PARTIALLY USED OEM - 55% FULL MINIMUM box-050536 The disk is a 500GBHP 83 Yellow Ink C4943A Designjet 5000 & 5500 Yellow UV Ink Cartridge. This is a partially used OEM HP ink cartridge guaranteed to be at least 50% up to 99% full. Note: ink cartridges and printheads are non returnable.