An office may have a higher gsm paper (100gsm+) on which to print important correspondence to customers and clients. Higher gsm paper is thicker and has a quality feel.
Laser and inkjet printers print in very different ways and certain papers are better suited to one or the other. Inkjet paper, for example, has good absorbency but does not allow the ink to spread sideways. The Guardian has a good article on the differences between inkjet and laser printing, including tips on their relative cost effectiveness
If you are stuck, need a bit more info or advice, would rather order over the phone, or simply need some human reassurance, give us a call on 0345 567 4000. We will be happy to hear from you and will offer all the assistance we can.