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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.
Infrared cleaning is a technique used by some film scanners and flatbed scanners to reduce or remove the effect of dust and scratches upon the finished scan. It works by collecting an additional infrared channel from the scan at the same position and resolution as the three visible color channels (red, green, and blue). The infrared channel, in ...
This adds to the cost of consumables and makes it more difficult to manufacture a high-precision head at a reasonable cost, but also means that a damaged or clogged print head is only a minor problem: the user can simply buy a new cartridge. Hewlett-Packard has traditionally favored the disposable print head, as did Canon in its early models ...
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.
Acidic drain cleaners usually contain sulfuric acid at a high concentration which turns a piece of pH paper red and chars it instantly. Apart from grease and hair, an acidic drain cleaner containing sulfuric acid can be also used to dissolve tissue paper inside water pipes.