Epson DX7 original, solvent resistant print head suitable for Epson solvent based printers. The DX7, also known as the Epson Micro Piezo TFP Printhead, is the latest in Epson printhead technology. It has 10 channels and 360 nozzles per channel. It has a 3,5 picoliter drop size with Variable-Sized Droplet technology. This is the original Epson Printhead. Printer compatibility: Epson SureColor SC-S30600 / SureColor SC-S70600 (8C) / SureColor SC-S50600 (4C) / SureColor SC-S70600 (10C) / SureColor SC-S50600 (5C) DP part number : PPHEP11139