How to Refill Canon MegaTank Printer Ink – Step-by-Step Guide
Learn how to refill your Canon MegaTank or PIXMA G-series printer safely using compatible Canon refill ink. Follow these simple steps to avoid spills, overfilling and incorrect colour filling.
What you'll need:
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Compatible Canon Gi-790 refill ink (Click to buy)
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Tissue or soft cloth
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Your Canon MegaTank printer
Identify the Correct Canon Ink Tank
Before refilling, identify the correct Black, Cyan, Magenta and Yellow ink tanks. Always match the refill ink colour with the corresponding tank.
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How to Refill Canon MegaTank Ink (GI790)
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Step 1: Open the ink tank cover and identify the correct colour tank: Black, Cyan, Magenta, or Yellow.
Step 2: Open the cap of the selected tank and confirm that the ink colour matches the tank
Step 3: Align the GI-790 bottle nozzle with the filling inlet and place it securely into the port.
Step 4: Allow the ink to flow into the tank and stop when it reaches the upper/MAX level. Avoid overfilling or squeezing the bottle.
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Step 5: Remove the bottle carefully, close the tank cap and cover, then take a test print to check the flow of ink.
Important Tips for Canon MegaTank Refilling
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Never mix ink colours.
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Use compatible ink suitable for your Canon printer.
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Do not overfill the ink tank.
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Keep the bottle nozzle and tank opening clean.
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Refill before the ink tank becomes completely empty.
Refill Complete? Check Before Printing
[Large nozzle-check / CMYK test image]
Check that Black, Cyan, Magenta and Yellow are printing without missing lines.
Missing lines?
Wait 5–10 minutes and run one normal print-head cleaning cycle if required
