Supertank printers are a type of continuous ink system (CISS) inkjet printer. Supertank printers differ from traditional inkjet printers in that the printhead is connected via a tube system that draws ink from large ink tanks built into the printer, which are filled and refilled via ink bottles, eliminating the need for ink cartridges. Cost-per-page (CPP) is significantly lower than traditional cartridges, as replacement ink bottles contain enough ink to print thousands of pages, and typically cost under $20.
Epson pioneered this technology by launching the EcoTank range, first in Indonesia in 2010, with a North American launch in 2015. The supertank concept proved commercially successful, and Canon and HP launched their own lines of supertank printers, under the names MegaTank (Canon) and Smart Tank (HP).