How to Fix and Prevent This Common Epson Printer Problem
Have you ever double-checked your Epson printer for a paper jam—only to be told again (and again) that it’s still there? Welcome to the frustrating world of Epson Error 034004, often called the “insoluble paper jam.” This guide will walk you through exactly what’s going wrong, how to fix it step-by-step, and how to keep it from happening again.
And if you’re more of a visual learner, we’ve also got a step-by-step YouTube video to walk you through the fix.
Watch now: Epson Error 034004 Fix Video
What Is Epson Error 034004?
Epson Error 034004 occurs when your printer believes there’s a paper jam, despite there being no visible paper stuck inside. According to Epson’s documentation, this error can be caused by:
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Foreign objects stuck in the paper path
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Misaligned internal parts or printer frame deformation
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Change Lever failure, which controls how paper feeds through the machine
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Disconnected or damaged internal cables like the FFC (Flexible Flat Cable)
It’s a phantom error, but the fix is real—and manageable.
Real Fix from the Field: BCH Technologies and the ET-2550
At BCH Technologies, our team has seen this issue pop up in Epson models like the ET-2550. Technician Abby recently resolved a case where the root cause was a small, internal cable that had come loose.
Problem: The sensor cable (FFC) was disconnected.
Fix: Reconnected the cable and cleared the error instantly.
Something as small as a loose internal cable can make your printer think it’s jammed when it’s not.
Step-by-Step: How to Fix Epson Error 034004
Follow these steps to troubleshoot and solve the error:
Step 1: Inspect for Foreign Objects
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Unplug the printer.
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Open all accessible panels (top, front, back).
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Look for scraps of paper, packaging materials, or other debris.
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Use a flashlight for better visibility.
Step 2: Check the Frame and Rollers
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Examine the paper-feed rollers and metal components.
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Look for anything bent or out of alignment.
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Gently realign if necessary.
Step 3: Test the Change Lever
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Open the printer’s side cover (check for bottom tabs to release).
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Find the Change Lever.
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Make sure it moves freely and returns to position on its own.
Step 4: Reconnect the FFC Cable
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Locate the internal sensor (you may need to remove the side panel).
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Check the Flexible Flat Cable (FFC) connection.
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If loose, gently press it back into place.
Tools & Support from BCH Technologies
Solving printer errors is easier with the right tools. BCH Technologies offers trusted products and expert help to make sure your printer stays in top shape:
Epson Printer Repair Services
For complex repairs, BCH’s certified technicians can help. We offer fast, affordable service for stubborn printer issues.
Printhead & Sensor Cleaning Kit
Prevent dust buildup that can trigger false paper jams. Our kits are safe and easy to use at home.
FFC Cable Replacements
Loose or damaged cables are often the culprit. BCH offers high-quality replacement cables that fit Epson printers perfectly.
How to Prevent Epson Error 034004 in the Future
Prevention is better than repair. Here are a few simple tips to avoid future paper jam errors:
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Clean your printer’s interior regularly using a sensor-safe kit.
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Handle paper gently and store it properly to reduce dust and curling.
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Use high-quality paper to prevent small fibers from building up.
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Perform occasional checks on internal cable connections if you’re comfortable.
🌱 Why This Matters: Reducing Waste and Saving Resources
At Reduce Refill Recycle, our goal is to help printer users extend the life of their equipment, reduce e-waste, and make smarter repair choices. Fixing your printer not only saves money, it helps the planet.
If you found this guide helpful, consider subscribing to our blog or sharing it with a friend. Every repair makes a difference.
Watch the Full Repair on YouTube
Don’t miss our full repair demonstration from BCH’s expert team:
Need Help? We’ve Got Your Back.
If you’re stuck or need a part recommendation, contact BCH Technologies or explore our DIY repair products. Together, we can keep more printers running—and fewer in the landfill.
Happy printing,
The Reduce Refill Recycle Team
