Bear in mind that if you use a scanner + inkjet printer as you would a photocopier you will get through ink cartridges pretty fast which can be expensive.
This applies whether the scanner + inkjet printer are separate or together in an "all-in-one".
If you "photocopy" a text document that doesn't have a completely white background (e.g. a newspaper cutting) you may find the printer uses a lot of ink to generate that shaded background.