Replacing the Print Head on your FreeJet 330TX

customerSeptember 12, 20173 comments

Replacing the print head on your Omniprint FreeJet is a relatively easy process and should only take around 20-30 minutes to complete. You will want to place some paper towels or old t-hirts below the Print Carriage in case any ink drips during the process.You will need the Damper replacement document to complete this process. Pay extra care when removing and installingthe Ribbon Cables.

  1. Press the “Function”and “Up”buttons on the Control Panel 1 time to release the PrintHead.
  2. Power the Printer off from the back.
  3. Refer to the Damper Removal/Replacement Service Document to remove dampers.
  4. Once the Dampers are all removed from the Print Head you will need to removethe Ribbon Cable holder on the side of the Print Head Carriage. To remove the holder 1 tab will need to be released with a small flat head screw driver. The second tab you will need to pushor stretch openthe slot to release it.Remove guide.


  5. Try and keep the Ribbon Cables together to help ease putting them back into position later.
  6. Remove the 3 screws holding the Print Head in position. You will need a #1 +head screw driver for this step.

  7. The Print Head can now be pulled straight up and out of the Carriage. To pull the head up and out hold onto the left side of the head, do not grab the post but the 2 raised walls outside of the posts. On the right side hold the Ribbon Cable. Pull t he Head up and out gently.

  8. Once the Print Head is out of the Carriage you will want to mark the ribbon cables for top and bottom. You do not want to take the out and put them back in out of order as this will damage the head and main board. Write a T on the top cable and a B on the bottom cable so they stay in order.

  9. When removing the Ribbon Cables make sure to hold the cable in the center and pull straight out. Do the same when installing the cables into the new print head.
  10. Place the cables into the new print head, push them in straight and even. Do not damage the cable ends in anyway. Make sure they are going back the same way that you took them out.

  11. Place the Print Head carefully back into the carriage. Make sure the head is sitting all the way at the bottom of the carriage and then put the 3 screws back in. Do Not Over Tighten the screws! Once you feel the screw tighten up stop, it is very easy to strip out the plastic when you over tighten.
  12. Fit the ribbon cable back into the guide and the snap the guide cover back into position.

  13. Put Dampers back in, referback to damper removal/install document.

  14. Power printer back on. Run a prime of the ink lines followed by 2 head clean. Run Nozzle check before printing.

Buy your FREEJET 330TX Epson Print Head Here

Buy your Freejet 330TX Print Head Cable Harness Here

Comments (3)

monNoilla on December 06, 2020

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Jeffrey E Kroft on October 20, 2020

Karl: We have the same issue with our Freejet 330TX Plus. Omniprint has replaced both the Freejet and Epson board, ribbon cables, etc. Still getting the Fatal Error. They want me to send back the printer from Chicago to CA. I know it has to be something else.

Karl on September 29, 2020

Hello, I cleaned the print head. Put it back in the carriage, dampers connected. Ran a couple head cleanings, then tried to do a nozzle check, and it won’t perform nozzle checks. It just want to do cleanings, and not nozzle checks??
Does anyone know what the issue is? Also getting two simultaneous blinking red error/ink lights

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