The Brother Intellifax 3750 is a laser fax machine that takes the best features of previous models and improves on them with faster transmissions speeds up to 33.6 kbps. It also functions as a basic monochrome laser printer.ÊThe automatic document feeder can hold up to 30 pages for automatic faxing of many pages at once. This is a very convenient feature, though some may miss having a flatbed scanner and the ability to scan larger materials. The machine has a dual-access function for sending and receiving faxes at the same time, as it stores the fax into memory until it can be sent, without making the user wait. A number of other fax features are included as well, such as 300 pages of page memory, auto-dialing, fax forwarding and distinctive ring detection. The unit can also operate as a basic copy machine. The machine uses printer toner, which makes the cost of Brother 3750 toner cartridges lower. Each Intellifax 3750 toner cartridge has a capacity of 2,200 pages.