Here’s a very nice video showing how to install a CISS (Continuous Ink Supply System) on an Epson printer (can also be applied for any other printer):

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A nice video explaining how you can refill the toner or ink cartridges on fax machines, which are no different from your usual printers (they are made from the same components, after all):

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Most HP Printers have a quite advanced cartridge cleaning system, but it can’t be operated from the printer, but from the software. Check out how to do it:

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They’re cleanned pretty much the same way as any other inkjet cartridges, but try to avoid letting the cartridge contacts under water for more than 2-3 minutes, or you’ll have cartridge recognition problems:

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These are very easy to refill. Take Epson’s cartridges for example:

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