A:AnswerThe Brother HL-L3290CDW uses a set of 4 drum units. The DR-223CL drum unit set needs to be replaced approximately every 18,000 pages, not as often as the toner cartridges.
A:AnswerThe Brother HL-L3290CDW can use the manual feed slot to feed one sheet of paper at a time or the paper tray which can hold up 250 sheets of paper. Click the link for the weight of the thickest paper that can be used.
https://help.brother-usa.com/app/answers/detail/a_id/155925
A:AnswerThe driver for Linux is available for the Brother HL-L3290CDW. However, Brother does not offer over the phone support. You may contact Linux for additional information.
A:AnswerYou can scan a page, then add another. I don't know what the limit is, but I have scanned about a dozen. It's not as simple as a feeder, but it works. And you can set the quality of the scans, which is nice.