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Epson pioneered this technology by launching the EcoTank range, first in Indonesia in 2010, [3] with a North American launch in 2015. [4] The supertank concept proved commercially successful, [3] and Canon and HP launched their own lines of supertank printers, under the names MegaTank (Canon) [5] and Smart Tank (HP).
Epson designed ink to be left in the cartridges (having done so ever since the introduction of piezoelectric print heads) due to the way the capping mechanism worked. If the capping mechanism dries out, then the heads risk getting clogged, necessitating expensive repairs.
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