This adapter board allows you to convert an Epson L1800 or Epson R1390 printer to use an Epson L805/L800 printhead.
It is specifically designed for UV, DTF, and DTG modified printers built on the L1800/1390 engine.

Because L1800/1390 printheads are more expensive, this adapter gives you the option to switch to the more affordable and widely available L805/L800 printhead—without replacing your mainboard or modifying your printer’s electronics.

✔ What This Kit Does

This board bridges the different cable formats used by each printhead:

• L1800/1390 printhead uses:

  • Wide data cable (27 pins)

  • Power cable (9-pin)

• L805/L800 printhead uses:

  • Narrower data cable (23-pin)

  • Power cable (13-pin)

Your printer already has the 9-pin power cable and the wider L1800/1390 data cable, now your goal is to connect to a wider power cable and narrower data cable on the L805.
This adapter board converts those connections to the L805/L800 cable format.

📦 Package Includes

• L1800/1390 → L805/L800 adapter board

• Two short cables:

  • One wide short data cable (23 pins)

  • One 13-pin power/data cable

Not Included (comes from your printer):

• The original wide L1800/1390 data cable

• The original 9-pin L1800/1390 power cable

These two cables come with your printer and are required for installation.

🔧 Understanding the Cables (Very Important)

Your L1800/1390 printhead uses two cables:

1. DATA Cable (Wide, 27 pins)

• This is the bottom cable on your L1800/1390 printhead.

• It connects printhead → motherboard.

• Much wider than the L805/L800 data cable.

• NOT included in this listing.

2. POWER Cable (9-pin)

• This is the smaller upper cable.

• Also connects printhead → motherboard.

• NOT included in this listing.

The L805 printhead uses 13-pin connections for both power and 23-pin for data.
This adapter converts your printer’s wide cable + 9-pin cable to the L805 13-pin format.

🛠 Installation Instructions (Simplified & Clear)

A. Connect the DATA (PRINT SIGNAL) cables

1. Locate the two large sockets on the adapter board (on the same side).

2. Find the widest socket → this is for your original L1800/1390's 27-pin wide data cable.

   • Plug your printer’s data cable here.

3. The opposite large socket is slightly narrower → this is for the included wide 23-pin short cable.

   • Plug the included wide short cable here.

4. Connect the other end of the included 23-pin wide short cable to the L805 printhead data connector.

If the included wide cable is wider than your printhead socket, your printhead is actually already an L1800/1390 printhead—no conversion needed.

B. Connect the POWER cables

1. On the same adapter board, find the two smaller 9–13 pin sockets.

2. The smaller 9-pin socket connects to your printer’s original 9-pin power cable.

   • This cable comes from your motherboard (not included).

3. The slightly larger 13-pin socket is for the included 13-pin short cable.

4. Connect the other end of the included 13-pin cable to the L805 printhead power connector.

🔄 Switching Back to L1800/1390

You can revert back to connect a L1800/R1390 printhead at any time:

1. Unplug the adapter board

2. Reconnect your original L1800/1390 printhead using your existing cables

No permanent modification to the board or printer is required.

⭐ Who Needs This Adapter?

This adapter is made for:

• Users whose L1800/1390 printhead is unavailable or too expensive

• Builders of custom UV/DTF/DTG printers needing L805/L800 printhead compatibility

• Anyone wanting to switch to affordable, easy-to-source L805 printheads

• Repair shops that want cross-compatibility between engines

📌 Compatibility

Compatible Printers:

• Epson L1800

• Epson R1390

• Printers using L1800/1390-based engines

Converts To:

• Epson L805/L800 printhead

Not Needed For:

• Stock Epson L805/L800 printers (they already use 13-pin printheads)

⚠ Important Notes

• This listing does NOT include the original L1800/1390 data or power cables. You must use the cables already in your printer.

• The adapter is passive; it does not modify firmware or require board changes.