How to Fix Printer Prints Small Picture but not Big Ones: Ink and Paper Light Blinking Errors on Neixo DTG A3 Printers

On your YouTube channel, I watched a couple videos and found you provide encoder strips. Me too, I bought Neixo DTG A3 using Epson L1800 They blink red in unison for ink and paper, my printer can do a little print job but it is able to make a full prints. I do not know yet, but I have a suspicion it has to do with the ink that embed onto the encoder strip or some cuts in both of them (one might value 125 USD and other one who knows) which can result causing miss read when is necessary creating big prints. I wish so that you can aid me triumph over this.

Answer:

Thanks for contacting us and subscribe to our YouTube channel: https://youtube.com/@bchtechnologies.. We really appreciate your support and hope that we can always help you out! That is an exceptional question, and we are happy to help you troubleshoot.

The problem sounds like it involves the printhead movement, so you are on the right track to narrow it down, most likely to the CR (carriage return) encoder strip. The fact that it can handle small prints but not full width is a strong indicator that your encoder may be having trouble telling the controller where the printhead is after traveling a certain distance from its origin.

The serial number you gave is a model number, but that matters little, as Epson encoders are pretty forgiving about what they will work with. Before you start installing a new encoder strip, you can try out some basic troubleshooting first.

Examine the Front of the Encoder Strip:

The encoder strip appears fine in the photo you posted. Even relatively small stains or the occasional minor cut would not usually result in a complete failure. I would give it another careful visual once-over to look for misalignment or heavy damage. Even a slightly misaligned laceration in or near the area of this reading edge will have performance implications. So, focus on lacerations, not stains.

Check the Encoder Sensor:

There may be problems with the encoder sensor. Some manufacturers secured it not with screws but with glue. Therefore, it could change its position during printing. I have a video here. https://youtu.be/7JovBDaamtU

FFC Cable and corresponding Sensor Connections

Check the Flexible Flat Cable(FFC) connecting the encoder sensor. If the cable is not connected in the appropriate condition or is broken, no information will be passed as expected. Inspect the FFC cable for any wear or bad connection to the sensor. Also, look for an FFC that may get stuck on the carriage return mechanism.

The Carriage Return:

Looking at the pictures, there are some ink tubes with tape on them, and it seems like you already had some hiccups with tubes getting stuck. This could partly be the issue. If the tubes are longer or have poor damage, they can affect the carriage rack while moving, resulting in printing errors. If I had to do it over, I would probably add a drag chain and keep the tubing managed better while moving. You can check out our video tutorial on drag chain installation here: https://youtu.be/Rd4u7sxoPp4

With the help of the Epson Adjustment Program

Another helpful trick is using Epson's Adjustment Program, especially the "Printer Information" mode. This tool will give you the history of your machine's five previous error codes. CR movement-related, or CR motor-related errors could be caused by the FFC of a print head being entangled with it or an issue in the motor itself. These error codes are helpful as they give you a better idea of where to start regarding repairs.

This way, you can rule out the possible reasons one by one and prevent yourself from ordering parts that are not causing a problem. We do, of course, sell encoder strips. https://bchtechnologies.com/products/epson-cr-timing-encoder-scale-strip-belt-for-l1800-1390-1430

 However, from what you describe, it's worth doing a bit more troubleshooting here before committing to any purchases.

As printer faults tend to be more hands-on. Unfortunately, BCH Technologies cannot offer help troubleshooting, advising on print services, or fixing printers remotely. But we provide a face-to-face assessment and repair work service with our regional diagnostic center. Find out more about this service [https://bchtechnologies.com/printer-repair-service] If you decide to drop it off or mail it in for us to evaluate, we are swamped at the moment and operate on a first-come-first-served basis, it may take many weeks before we could test your printer.

We get it. We may not always have the best prices. If you want to continue your troubleshooting, we recommend that you check out our self-help resource, like our YouTube channel [https://youtube.com/@bchtechnologies]. Check out the “About” section of our channel and use the search icon to quickly find videos on specific topics. YouTube's search algorithm can also recommend some useful videos by other creators.

Once again, thank you all for contacting us and continued dedication to resolving this matter. Our team is here to help you and hopefully this guidance will have your printer working smoothly again!