Epson ET-8550 Scanner Error 100077: Causes and Solutions for DTF Conversion Issues
- By Kevin Day
- On Dec 02, 2024
- Comment 0
Question
After watching several tutorial videos, I’ve been converting my Epson ET-8550 printer to DTF printing. During the process, I removed a portion of the scanner lid and accidentally damaged the circuit controlling the scanner motor. I cannot print because the printer displays scanner error code 100077. How can I fix this issue?Answer
Thank you for reaching out to us with your detailed question. I apologize for not addressing this sooner; printer issues are always urgent, especially during a DTF conversion. At BCH Technologies, we strive to provide thoughtful and specific guidance. Your engagement, particularly with our YouTube channel [https://youtube.com/@bchtechnologies], is precious in helping us enhance our technical expertise.Now, let’s address your issue with error code 100077.
What Does Error 100077 Mean?
Error Code 100077 is classified as an "FB BS+ Excess Load Error." This error indicates that the scanner motor stopped running during operation. The printer believes something is preventing the scanner head from moving correctly.Possible Causes and Diagnoses
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Mechanical Disengagement:
- The scanner carriage rail (CR) may have become disengaged.
- The scanner motor pulley might be loose, or the motor gears could be damaged.
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Encoder Issues:
- The scanner motor encoder may have failed or become contaminated with debris, dust, or grease.
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Cable Problems:
- Damage, disconnection, or misalignment of the scanner FFC (Flat Flexible Cable) can cause the printer to lose communication with the motor.
-
Component Failures:
- Failure of the scanner motor or encoder sensor.
- The main board may also be fixed, preventing proper communication and operation.
Troubleshooting Steps
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Inspect the Scanner FFC Cable:
Since the scanner circuit was damaged during the DTF conversion, check the FFC cable connecting the motor to the main board. Look for:
- Tears, breaks, or burn marks.
- Improper alignment or disconnection.
- Use a multimeter to test for continuity.
- If damaged, replace the cable with a compatible part.
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Clean the Encoder Scale:
Contamination on the scanner’s encoder scale can prevent the motor from sending proper signals. Use a clean, lint-free cloth to gently wipe the encoder strip and gently remove dust or grease. -
Check for Physical Damage:
Please look at the scanner motor gears and pulley for cracks or disengagement. If damaged, these components will need replacement. -
Test the Scanner Motor:
Could you test the scanner motor with a multimeter or temporarily replace it with a known working unit to ensure its correct operation? -
Examine the Main Board:
The main board may be the issue if all other components are functional. Could you replace it with a verified compatible unit?
Helpful Resources
To assist you further, I recommend watching this video [https://youtu.be/Jg1x-zLrJrc]. It provides a detailed explanation of common cable issues and how to troubleshoot them, which should help you pinpoint the exact area of damage.Final Thoughts
Addressing printer issues like these often requires hands-on diagnostics, making it challenging to resolve remotely. While we cannot provide remote support, BCH Technologies offers in-person evaluation and repair services. Visit our Printer Repair Service page [https://bchtechnologies.com/printer-repair-service] to learn more. Our services include repairs for entire printers or specific parts, with mail-in and drop-off options available.If you prefer DIY repairs, explore our extensive tutorial library on our YouTube channel [https://youtube.com/@bchtechnologies]. Using the search feature can help you find relevant guides quickly.
Thank you again for contacting BCH Technologies and for supporting it. We hope these suggestions help you resolve the error and complete your DTF conversion successfully.