Workshop: Change Waste-Ink-Tank Canon Pixma iP4000: What´s a waste ink collector good for?
Ink-printers made by Canon or Epson have a waste ink collector in the printer´s bottom. It consists of one or several sponges, which cover almost all of the printer´s bottom surface.
Manufactures give these sponges many different names, like waste ink tank or waste ink container, and you would expect rather a receptacle than a sponge. We use either waste ink or waste ink collector, and a better name for "sponge" is ink absorber.
Whenever the printer starts a cleaning cycle, whether automatically or initiated by the user, ink will be sucked through the printing-head´s nozzles. The ink used in this process runs via the cleaning system´s hoses right into the ink absorber at the printer's bottom.