|Scanner type||File scanner||File scanner||Book scanner, CamScanner, Photo scanner||File scanner||File scanner|
|Scan sizes||A4||A4||A3, A4, A5, A6||A4||A4|
|Automatic document feeder (ADF)||Yes||Yes||No||Yes||Yes|
With the Canon DR-M140 document scanner, you can scan up to 6,000 pages per day. This means it's suitable for large (government) offices. The compact scanner is about the size of a shoe box, so it'll easily fit on your desk or on the window sill. In addition to the normal scan mode, which sees the paper take a U-turn and emerge from the scanner at the same side, you can also use the straight paper path for thick paper or cards, which will see them emerge from the back of the scanner. With the 50-page automatic document feeder, you can scan stacks of contracts, minutes, or invoices without having to insert all sheets separately. You can insert documents of different weights and sizes and the scanner will easily digitize them separately.