In applications like Word and Adobe Reader, make sure that the 'Collate' button is unticked in print dialogue box. You can still have 'Collate' turned on in the driver.
Collate.JPG
Have a look at the picture and you will see the tick box I am talking about.
Having this ticked will mean that the job is sent to the copier how ever many times is chosen. If you want 50 copies, then the application will send the job to the copier 50 times instead of sending it once and the copier knowing to print it out 50 times.