Restoring Your Model J DTF Pro Printer — Fixing a Shorted Printer Mainboard

Question:

One customer contacted me about his Model J DTF Pro printer issue. He eventually just gave up after over $700 spent on replacing things like the mainboard and cables and ink bottles, tubes, and whatever else, plus a dry print ran, and the thing died on him again. They informed the customer that a new printhead, motherboard, and cables could be purchased for another $700, though the customer had already spent a substantial amount fixing the printer. They are hearing a low beep from the printer, and the company thinks the mainboard has been shorted out again. The customer needs assistance determining how to get their printer working again or whether they should simply replace the printer.

Answer:

The Problem with the Model J DTF Pro Printer Explained

I have examined the technician's email regarding the short circuit problem with your Model J DTF Pro printer. The technician’s evaluation is valid. When the mainboard is short-circuited like this, the printhead and cables are also typically affected. Short circuits “travel” across components, so even if the mainboard is replaced, the damaged cables and printhead are likely to create new problems.

What Are Your Options?

1. Alternative to the Printer: You can simply buy a new printer. But in our experience, the Model J is one of the more reliable printers we’ve used and is still worth trying to repair. If you already know the printer well and have bought parts, it could be worth trying to repair it.
2. Mainboard Repair: In BCH Technologies, we can fix the mainboard at an affordable price. For $75, we can fix the mainboard and likely fix the problem without needing expensive replacement. You will also need to purchase printhead cables for about $25. The L805 can be fitted with a replacement printhead simultaneously for the low price of $239 (most printheads would cost that much) if you don't wish to go with a different model. Or pay $410 more to experience a genuine L1800 printhead with better performance and lifespan.
3. Ship the Entire Printer for a Full Repair: You may prefer that we receive the entire printer for a diagnostic followed by repairs. We get $300 to diagnose and the first 1.5 hours of repair. Beyond that, we have a $65 per hour per labor lot fee. To fix this, all the components, including the sub-boards and control systems, would be examined to identify the popcorn video of the short circuit. Considering the relevance of the subject matter, we can reach the latter part of that 1½ hour. The printer will be shipped back to you after repairs.

More Possible Troubleshooting Tips:

All Connections Check: Before proceeding, confirm that each cable and connector is correctly connected, preferably near the 9-contact pins. Loose connections may be causing the issue, and reseating them can resolve some problems.

Power Supply Voltage: Finally, it is essential to check the power supply voltage to ensure that it is within the range. This is where the motherboard, or the mainboard that powers everything inside, comes into play. Too high a voltage will also destroy the mainboard or potentially other components.

Flushing the Printhead: If you choose to carry out the repairs, be extra careful when performing manual printhead flushing. If you mess up, it could be dangerous, especially if you have electrical problems.

Because printer issues are very hands-on problems, diagnosing them can be very involved. Sadly, we cannot offer remote troubleshooting, advice, or support for printer repairs. However, we have an onsite diagnosis & restore service at our local diagnostics park at BCH Technologies Printer Fixing Assistance [https://bchtechnologies.com/printer-repair-service], but due to high need, first-come, first-served basis, service shall be provided so it might take few weeks prior we could probably take your printer for drop-off.

We have directions on fixing the printer, whether it is the overall machine or just a specific component. Our prices are not the cheapest, so we suggest you consult the Internet for help. We have a YouTube channel [https://youtube.com/@bchtechnologies] that can help you with Support on printing issues. This channel will help you find specific videos, and you may also get suggestions from other creators that could help you.

Thanks again for contacting me. I look forward to helping you get your printer back to working. Please do not hesitate to contact me if you require additional support.