How can I tell what kind of printer a document was printed on? -

I m trying to figure out how you can look at a document and figure out whether it was printed on a laserjet or inkjet printer. i know it can be done, I just don t remember how.

Pour a tiny bit of water on the ink (not enough to damage the document!!). If it runs, it s an inkjet, if it stays, it s laserjet.

Lasers deposit tiny granules of toner then melt it into the paper. The edges of characters will be rough and through a microscope you can see the granules. Injets spray ink on the paper and it soaks in.

Use a magnifying glass to look at the ink. Inkjet will look more dotted, and laser printer will be smooth and shiny