printers toners and drums ?
ok i brought a brother laser mono dcp 7030 like at
http://www.misco.co.uk/applications/SearchTools/item-details.asp?EdpNo=321189&CatId=
i brought a drum unit for this machine for when it runs out …. i thought a toner did x amount of pages but a dum did double the pages apx, ok i was wrong i found out the hard [...]