Flaky LED Illumination on MG6120 Printer: A Technical Troubleshooting Guide

Identifying the Issue: Yellow Cartridge Replacement and LED Darkening

The user discovered the issue when replacing the yellow cartridge, noticing that the LED stayed dark. Subsequent attempts to address the problem, such as poking around and reinserting the cartridge, temporarily fixed the issue. However, the problem persisted when the cyan cartridge also exhibited flaky behavior. This raised concerns about the longevity of the printer and the possibility of impending hardware failure.

Possible Cause: Printhead Carriage and Chip Contact Springs

A forum member suggested that the problem might lie in the chip contact springs in the printhead carriage. Over time, these components can accumulate debris, affecting their conductivity. The proposed solution involved cleaning the chip contact springs with isopropyl alcohol or an electronics contact cleaner. Additionally, it was advised to clean the contact surfaces on the chips to ensure proper communication.

Caution: Choosing the Right Cleaning Agent

While cleaning is a recommended solution, caution is necessary when selecting cleaning agents. Water-based cleaners are not advisable, as water can be conductive and potentially cause damage to the chips or the printer. The forum member shared a personal experience of spilled ink damaging a cartridge chip, emphasizing the importance of avoiding water-based solutions.

Choosing the Right Isopropyl Alcohol Concentration

A question arose about the appropriate concentration of isopropyl alcohol for cleaning. The forum discussed the potential risks associated with using alcohol that attracts water. The consensus was that while a concentrated alcohol like 99% isopropyl alcohol can act as a desiccant, it is safe when used on a Q-tip for cleaning contact surfaces. The recommendation was to avoid using 70% rubbing alcohol due to uncertainty about its behavior during cleaning.

Alternative: Electronics Contact Cleaner

For users unable to obtain 99% isopropyl alcohol, the forum member suggested using an electronics contact cleaner as a safe alternative. This cleaner is known for being plastic-safe, non-corrosive, and leaving no conductive residue.

Conclusion and Next Steps

In troubleshooting flaky LED illumination on an aging MG6120 printer, users are advised to follow these steps carefully. Cleaning the chip contact springs and contact surfaces with the right cleaning agents, such as 99% isopropyl alcohol or electronics contact cleaner, can potentially resolve the issue.

Remember, regular maintenance can extend the lifespan of your printer, allowing you to maximize its functionality. If the problem persists or worsens, it might be time to explore new printer options. Stay tuned for more tech tips and guides on our YouTube Channel and Tech Blog. For hands-on assistance, visit our local center in Greensboro, North Carolina.