Question: Can the "Transportation Lock is On" Error Be Fixed on an Epson EcoTank Photo ET-8550 Printer?

I'm considering buying an Epson EcoTank Photo ET-8550 from eBay in the UK. The current owner mentions a transportation lock issue, specifically a blue plastic tab. Is this problem fixable?

Answer:

Certainly, the "transportation lock is on" message on your Epson ET-8550 printer suggests that the printer's shipping lock is engaged. This lock is crucial for securing the printer's internals during transit. Based on your description, it seems the lock has been disengaged, but the error persists. Here's how to tackle this:

1. CR Encoder Scale and Sensor: The CR encoder scale and sensor are vital for tracking the printhead's position. Dirt or damage on the encoder strip can mislead the printer about the printhead's location. Gently clean the encoder strip with a lint-free cloth and isopropyl alcohol. Be cautious to avoid damaging it.
2. Motor Power Issues: Even if the printhead appears to move, the motor might lack the power to move it at the required speed. This could be due to wear or electrical issues. Testing motor functionality typically requires technical expertise and special equipment.
3. Check for Obstructions: Persistent error messages can also mean internal obstructions. Inspect for any remaining packing materials like foam, plastic, tape, or cardboard that might block moving parts.
4. Mainboard Failure: The printer's mainboard orchestrates all functions. If it's failing, it may not correctly interpret sensor signals, including those from the transportation lock. Diagnosing a mainboard requires professional tools and knowledge.
5. Sensor Failure: Sensors that detect the printhead's position or the transportation lock's status might fail. If sensors send incorrect data, the printer might believe the lock is engaged. Sensor issues usually necessitate part replacement. Although ET-8550 doesn't have a particular sensor for the lock, you still need to track a group of sensors and make sure each one is in perfect working condition.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. For instance, resolving a simple clog might involve advice on unclogging procedures. However, if the printer remained inactive during downtime, a comprehensive service for the ink system could be necessary. Situations like a "paper jam" can arise from hundreds of potential causes, and solving such an issue has become something of an in-office jest. Hence, we're unable to provide remote troubleshooting, suggestions, or support for printer repairs.We offer an in-person evaluation and repair service via our local diagnostic facility (https://bchtechnologies.com/printer-repair-service). Given the high demand, we operate on a first-come, first-served basis. Therefore, it might take a few weeks before we can attend to your printer if you choose to drop it off or mail it to us. Our services are structured to repair either a whole printer or specific parts, with clear instructions on how to proceed if you opt for mail-in or local drop-off services.