Epson XP-15000 Error Code 000104 – What It Means and How to Fix It

Customer Question:

My Epson XP-15000 printer is showing the error code 000104. 

Answer:

Understanding Epson Error Code 000104:

The 000104 error code indicates that the IS Motor (Ink System Motor) failed to operate as expected. This specific error can arise from several mechanical or electronic issues within the printer’s drive mechanism. Here's a breakdown of what might be causing it and how to troubleshoot:

Potential Causes of 000104:

1. Overload in the Mechanism:

   • The motor may be trying to move components that are jammed, stuck, or have excessive resistance.

   • In your case, since you noticed difficulty with the black gear near the silver carriage shaft, this could suggest resistance along the CR shaft (carriage shaft), possibly due to grease buildup, debris, or a gear that is not seated correctly.

2. Gear Failure:

   • A broken tooth, disengaged gear, or misaligned train in the IS motor assembly can prevent proper movement.

   • The black gear you mentioned is linked to the IS motor's drivetrain. If it binds or slips, the motor may stall and trigger 000104.

3. IS Encoder Sensor Issues:

   • If the encoder scale (strip) that reads the position of the carriage is dirty, scratched, or misaligned, the printer may not detect motion properly.

   • Sometimes the encoder itself may fail electronically.

4. Cable or Connector Problems:

   • The IS motor and encoder sensor both rely on ribbon cables and connectors (specifically CN21 on the sub-board and CN903 on the main board).

   • If these are disconnected, damaged, or loose, communication is disrupted.

5. Failed IS Motor or Mainboard:

   • A burnt motor, a broken lead wire, or a failing mainboard can also cause this error if all other mechanical factors are checked out.

How to Troubleshoot and Repair:

If you're comfortable opening the printer and doing a mechanical inspection, here are some specific steps you can follow:

Step 1: Check the IS Motor and Gears

• Try manually rotating the black gear (gear next to the carriage shaft) to see if it spins freely or feels stuck.

• Inspect for tooth breakage, loose gears, or binding points.

• Look at the wheel train that drives the ink system and APG (Auto Paper Gap) components—these may also be part of the obstruction.

Step 2: Inspect and Clean the Encoder Strip

• Use a lint-free cloth and isopropyl alcohol to gently wipe the IS Encoder Sensor Scale (the transparent strip).

• Make sure the strip is not torn or scratched.

Step 3: Check the FFC Cables

• Inspect cables going to the IS Motor and Encoder Sensor.

• Ensure they’re securely connected at CN21 (Sub Board) and CN903 (Main Board).

• Look for contacts that are skewed, cracked, or corroded.

Step 4: Test or Replace Components

• If gears and sensors are clean and connected, but the issue persists:

  • Try replacing the IS Motor.

  • As a last resort, replace the Main Board, particularly if power and signals are not being transmitted properly.

Repair vs. Replacement Decision:

Given the labor involved and potential cost of replacement boards or motors, it’s worth evaluating whether a mail-in repair is cost-effective, especially if your printer is out of warranty. If the unit is otherwise in good shape and you rely on its wide-format capabilities, repairing it may be worthwhile. However, if you've experienced multiple issues in the past, a replacement might be a more economical option.

As a reminder, Printer repairs often require a hands-on approach. Unfortunately, we’re unable to provide remote troubleshooting or step-by-step technical support. However, we do offer an in-person evaluation and repair service through our local diagnostic facility (https://bchtechnologies.com/printer-repair-service). We work on a first-come, first-served basis, and due to high demand, it might be several weeks before we can assess your unit. Our services are tailored to either repair the entire printer or replace specific parts, and we provide guidance on the best course of action. Still, we understand that our pricing may not be the most budget-friendly. That’s why we encourage users to explore online self-repair resources. A great starting point is our YouTube channel (https://youtube.com/@bchtechnologies). Use the search icon next to the "About" tab to look up specific repair videos. With over nine years of content, this search tool is the best way to find targeted tutorials.

Thanks again for trusting BCH Technologies. We truly appreciate your engagement and support, and we’re always here to help however we can.