Achi UV 1390 Printer: What Does the Little Blue Button Do? Detailed Explanation and Troubleshooting Guide

Question:

What is the function of the little blue button at the upper left corner of the Achi UV 1390 printer?

Answer:

Regarding your question about the little blue button in the upper left corner of the Achi UV 1390 printer, this button functions as an ink reset button. Although your printer has been modified (often with a board that overrides the cartridge detection system), the Epson 1390 base still operates under the assumption that ink cartridges are present. The printer firmware monitors ink levels and will stop printing when it believes a cartridge is depleted, even if you’re using a continuous ink system or a UV conversion.

How the Ink Reset Button Works:

• When the printer detects a depleted cartridge, it enters an error state and refuses to print.

• Press the blue button 3 to 4 times to reset this error. Here’s what happens step-by-step:

  1. First press: The printhead carriage moves to the center, indicating which cartridge is thought to be empty.

  2. Second press: The carriage moves to the far right, positioning itself as if ready for a cartridge change.

  3. Third press: The printer requests to test the “new” cartridge that it assumes has been installed.

  4. Fourth press: The printer resumes normal printing, believing the cartridge issue has been resolved.

• If you see error codes related to ink (such as “Ink Cartridge Empty” or “Replace Cartridge”), the blue button is your manual override to bypass these messages.

Why This Happens

Even though your Achi UV 1390 may have a conversion board or a UV system, the base printer logic (Epson 1390) was designed for cartridge-based operation. These overrides do not fully disable the ink monitoring firmware. The reset button serves as a user intervention point to keep the printer operational when the system erroneously flags ink issues.

Additional Tips:

• If you find that pressing the button does not clear the error, try powering the printer off and back on, then repeating the reset process.

• Consistently monitor your actual ink levels (if possible) to avoid genuine ink starvation, which can damage the printhead.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. Therefore, we’re not able to provide remote troubleshooting, suggestions, or support for printer repairs. However, we do 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 there may be a wait before your printer can be dropped off. Our services cover both complete printer repair and specific part repairs, with detailed instructions provided for each step. We recognize our rates may not be the most economical, so we highly recommend you start with self-help resources online.

For additional support, please search for solutions on YouTube (https://youtube.com/@bchtechnologies). Use the search icon next to “About” on our channel menu to locate specific videos. After nearly a decade of creating instructional content, even we find it challenging to recall every video, so YouTube’s search tool is often the quickest way to get answers. Plus, YouTube may also recommend helpful videos from other creators.

Thank you again for reaching out and for your support. Your questions help us continue improving our guides and technical resources for the printing community.