New website since October 2026. See what changed
Canon cartridge refilling basics, part 4: refilling the right way
Part 4 of 5. How to refill a Canon sponge-type cartridge that still has ink in it so the sponge stays saturated, the cartridge keeps working like a new one and the printhead stays protected.
Before you start
What you need
Steps
-
Step 2: Seal the air vent, then refill
TipFor the full fill procedure for your cartridge, including sealing the outlet and resetting the chip, follow the refill guide for your printer.
-
Step 3: Check the sponge before you print
CarefulA cartridge with a faded or patchy sponge may still print, but you risk damaging the printhead.
Troubleshooting
Stuck on a step? Contact support. We answer refill questions daily.
Precision Colors, precisioncolors.com/pages/guides/canon-cartridge-proper-refilling

