Summary: I gave this unit only 3 stars because it came with a melfunctioning document feeder. It took me 1.5 hrs to repair the problem and good think is that I fix these machines. I got a good deal on it, in ovearall it is a good performing machine and I can not blame the seller for what happenes in the factory on the assembly line. Comparing to other color MFC's this machine is easy to install and operate. Color quality is very good. Cost of the supplies is about average.
Summary: This little unit does it all; wireless networking, multiple paper trays, and duplex printing and scanning. This is a truly great buy. A couple of caveats: 1. The color image quality just isn't that great. It's good enough, but the colors don't compare to similar HP offerings. However, if you're more about functionality and less about pretty pictures, this shouldn't bother you too much. 2. The unit tends to lie about when it's time to replace the toner cartridge.
Summary: Our church has a three people in the office and 15 on staff of a day care. We finished a lease on a much larger copier and went to this due to the huge cost difference (we can go through three of these in a year for less than one year's lease on the older machine). Does it do what we need it to do? Yes, just more slowly than the old one and the scan-to-email function is not too smooth. The scanning software is probably at fault, but it's what came with the machine.
Summary: I am updating my review below after living with this mfc for a while and finding out more benefits and quirks. If they let me change the stars I'd drop it to 2. Here are the additional quirks I have come to really dislike in this device: 1) It takes forever to warm up. Forget about printing one page receipts off the internet, walk-out client bills etc. The warmup is just too long.
Summary: Comments about Brother MFC-9840CDW Multifunction Printer: I use this many times throughout the course of the day and have found that it always has been reliable. We do a lot of high quality print jobs that are of the most importance. Yes, I have to agree that it could be faster, but the print quality is good and I have not experienced any problems with this printer after 4 months. I highly recommend this product.
Summary: Comments about Brother MFC-9840CDW Multifunction Printer: It could be faster. We thought it would be faster and we've had some trouble with jamming. Honestly though the quality of documents we are getting has made up for the shortcomings. It does what it says it does. The jamming did resolve when we bought a better quality paper too.
Pros: Durable Construction, Easy Setup, Easy To Use, Reliable
Summary: Comments about Brother MFC-9840CDW Multifunction Printer: This printer is all right. It is, like I said, too much bang for the buck. It is expensive, and too hard to setup. I don't recommend this printer.
Pros: Compact Design, Durable construction, Fast Print Time, Low Ink Consumption, Reliable
Excerpt: Erfahrungsbericht zum Multifunktionsgerät 4 in1, Modell MFC-9840CDW von der Firma Brother. (Faxgerät/ Kopierer/ Drucker/ Scanner) . . . . INBETRIEBNAHME °°°°°°°°°°°°°°°°°°°°°°°°°°° Gerät auspacken und auf eventuelle Transportschäden hin untersuchen. Man sollte auch auf die Innenliegende Schutzverpackungen achten geben, dass auch alles entfernt wird. Danach die zugehörigen Teile wie zum Beispiel Trommeleinheit, Toner einsetzen. Papierfach mit Papier füllen.