Can You Use Extreme Unclogging on Canon PG-810 Cartridges?

Question:
I watched your video about extreme unclogging for Canon and HP printers. Can this method be applied to a Canon PG-810 cartridge? Mine prints but only produces a single line. I tried blowing gently from the top hole, and some bubbles and ink came out, but I stopped because I was afraid I might damage the cartridge. I’m also using a CISS (Continuous Ink Supply System). Can you advise if this method is safe for my cartridge?

Watch the referenced video here (https://www.youtube.com/watch?v=wCkhJHa4I80&lc=Ugx7gjdvf_lZ1KgnPpl4AaABAg).

1. Applying Extreme Unclogging to Canon PG-810

Yes, the extreme unclogging method shown in the video can be applied to Canon PG-810 cartridges. The fact that you already saw bubbles and some ink movement when applying gentle pressure is encouraging. It means the ink pathways are not completely sealed, and with the right approach, you may be able to restore proper flow.

2. Proceed With Caution – Avoid Excessive Force

When using this method, the key is to apply steady, gentle pressure—never force the air or fluid through too aggressively. Too much pressure risks damaging the cartridge’s internal sponge or breaking the thin nozzles at the printhead.

If you’re seeing even a single line print, that means at least some nozzles are still firing. The goal of unclogging is to gradually reopen the others. Forcing too hard can permanently ruin the cartridge, while careful flushing can often bring it back to life.

3. Considerations With CISS Systems

Since you’re using a Continuous Ink Supply System (CISS), once the pathways are cleared, the CISS should help maintain steady ink flow. However, CISS setups can also introduce air bubbles into the ink lines if not primed properly, which mimic clogging symptoms. If you continue to see broken or missing lines after unclogging, double-check your CISS tubing for trapped air and reprime it if necessary.

4. Practical Tips for Better Results

• Use warm (not hot) distilled water or a mild cleaning solution when attempting extreme unclogging. Heat helps dissolve dried dye particles.

• After applying gentle pressure, let the cartridge rest on a paper towel overnight to wick out softened ink clogs.

• Run a nozzle check and cleaning cycle after reinstalling. Avoid back-to-back heavy cleanings; give the printer time to stabilize ink flow.

• If repeated attempts don’t improve output, the cartridge’s heating elements may be worn out. Canon’s thermal bubble-jet cartridges eventually fail after a certain lifespan of “boil cycles,” and no amount of cleaning can restore them.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. For that reason, we are unable to provide remote step-by-step repair support. However, BCH Technologies does offer in-person diagnostics and repair services through our printer repair service center (https://bchtechnologies.com/printer-repair-service). We operate on a first-come, first-served basis, and depending on demand, it may take a few weeks before your printer can be received. Our services range from complete printer repairs to specific part repairs with clear instructions for next steps. Still, since our rates may not be the most economical, we encourage self-help resources. You can begin by exploring our YouTube channel (https://youtube.com/@bchtechnologies). Use the search icon on the channel homepage (next to “About”) to find videos on cartridge repair and unclogging methods. With nine years of uploaded tutorials, this is the fastest way to locate the right content, and YouTube may also recommend additional useful guides from other creators.

Thank you again for your thoughtful question and your patience. We greatly value your support and look forward to continuing to provide practical knowledge for the printing community.