Troubleshooting Enjoycolor A3+R Epson 1390 Printer Shutdown Issues

Question:
I recently purchased the Enjoycolor A3+R DTF printer less than two months ago, but after just two weeks of use, it shut off mid-print and hasn’t turned back on. The company sent me a replacement motherboard, which powered the printer for about three minutes before it shut off again. I’ve also replaced the FFC cable, but the issue persists.
 
I’ve managed fewer than ten prints and ordered transistors and testing tools to fix the issue. However, the manufacturer is slow to respond due to the time difference. I’m at a loss and hope this is something simple to fix. Could you provide your professional opinion?
 
Answer:
Thank you for reaching out with your question. We’re sorry to hear about the issues with your Enjoycolor A3+R printer, and we sincerely apologize for any delay in our response. At BCH Technologies, we understand how frustrating printer malfunctions can be, especially when you're on a tight schedule. We aim to provide thoughtful and specific solutions to every inquiry. We also want to thank you for engaging with us and supporting our YouTube channel (https://youtube.com/@bchtechnologies), which helps us grow and share expertise.

Analyzing the Issue

The Enjoycolor A3+R printer, based on the Epson 1390, is an older model often refurbished from salvaged parts. Unlike the Epson L1800, where some units might be new or refurbished, the Epson 1390 base printers are universally older machines. While these printers can be cost-effective for DTF printing, they’re more prone to issues if not appropriately reassembled.
From your description, there may be an electronic short in the system. A few key points to consider:
  1. Electrical Faults:
    • If the printer powers on briefly (as you mentioned with the new motherboard) but shuts off again, this could point to a short circuit. Shorts often occur when internal components are improperly installed or damaged during assembly.
    • Please start by reviewing the FFC (flat flexible cables) you replaced to ensure they are not crimped or improperly seated. Loose connections or bent pins can cause malfunctions.
  2. Power Supply Unit (PSU):
    • The issue also lies in the power supply. Even a partially functioning PSU can cause intermittent power issues. Use a multimeter to test its output voltage and ensure it meets the printer’s requirements.
  3. Breakout Board and Printhead Compatibility:
    • The breakout board connecting to the printhead could also be problematic. Disconnect it temporarily to isolate the printhead from the equation.
    • Consider installing a genuine L1800 printhead (~$400). While this may seem costly, it could confirm whether the issue lies with the printhead or the underlying electronics. However, be cautious—if there’s an underlying short, installing a new printhead might damage it.
  4. Firmware and Adjustment Software:
    • Although adjustment software often cannot diagnose hardware shorts, it’s still worth checking for errors or inconsistencies in firmware settings. Sometimes, an unusual firmware installation can cause conflicts.

Recommended Steps

  1. Contact the Manufacturer:
    Since the printer is still under two months old, first try to resolve the issue with the manufacturer. Please document your interactions with them and ask about repair or replacement options.
  2. File a Chargeback:
    If the manufacturer is unresponsive or unable to help, please file a chargeback through your credit card provider or PayPal. With proper documentation of the malfunction and your attempts to resolve it, you may be eligible for a refund.
  3. DIY Repairs (as a Last Resort):
    If you repair the printer yourself, prepare for a time-intensive process. To isolate the faulty part, swap out one component at a time (breakout board, power supply, printhead, etc.). While this trial-and-error approach can be effective, it requires patience and a willingness to invest in additional components.
 
Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. So, we cannot provide remote troubleshooting, suggestions, or support for printer repairs. However, 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, so scheduling your printer drop-off or mail-in service might take a few weeks. Our services are structured to repair either an entire printer or specific components. We provide clear instructions on how to proceed if you choose mail-in or local drop-off options.
We acknowledge that our rates may be less economical, so we highly recommend self-help resources. Start with our extensive YouTube channel (https://youtube.com/@bchtechnologies). Use the search bar to locate videos related to your issue or explore suggested content from other creators. With nine years of content, you’ll likely find a helpful resource tailored to your needs.
 
Thank you again for reaching out! Your patience and support are invaluable to us. We hope these suggestions help you resolve the issue and get back to printing soon.