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by Just_Harry 566 days ago
In my later school years, when I had semi-regular need for printing things in colour, I took to drilling holes in the inkjet cartridges and refilling them with cheap ink using syringes.

Which worked out to about £5 for the syringes, £5 for 400 ml of CMYK ink, and my dad already had a power drill—which was equivalent to about £104-worth of black ink cartridges, and about £312-worth of colour ink cartridges. (Now it would be about £160 of black and £480 of colour). It only took 15-to-30-minutes to refill both cartridges, including drilling the holes.

Some printer manufacturers have implemented DRM for ink to prevent this kind of thing.