Cancel/Reprint deal with existing print jobs and allows the user to cancel a current print job or reprint the last page that was sent to the printer.

Toner Save makes images and such things a bit lighter, and really works best with just text documents, helping to extend the useful life of those expensive cartridges. There is a sight decrease in print quality when this feature is on, and some light gray scales may not be printed at all so this feature is best left for draft copies.

When the Demo button is held for a short duration it will cause the printer to print out a test page with its current configuration: amount of memory installed, total number of pages printed, and several other points. If the Demo button is held for longer than 10 seconds it will prompt the printer to go through a self-cleaning operation - for example if there is excess toner on the internal roller drum.

Upgradablity is taken care up by means of a removeable panel on the side of the printer which is configured to accept extra memory, and in the case of the pure ML-1651 model, the Ethernet expansion card.

The paper cartridge has a small indicator window to let you know how much paper remains. At 500 sheets, is should last a week or so in a busy office environment before requiring a refill. The back of the cartridge expands out to allow legal paper to be inserted into the cartridge.