I'm an American living in Japan and found it hard to find a reasonably priced printer compared to the options and prices in the United States. Bic Camera was double the price of the same model from stores in the United States and I turned to Amazon for some better options. I looked at the Canon models, but the affordable options lacked duplex and WiFi network capabilities. I found that the Brother HL-4570CDW had all the key features at a lower price. All the manuals are available on Brother's website in english and you can set the printer to english language mode too.
Note that while the printer is wireless network capable, Brother has not updated the firmware to allow for AirPrint on Apple iOS devices including iPhones and iPads. I was able to work another this by downloading the Printopia application for my Mac that allows me to share the printer with my iPhone and iPad. Note that this is slightly inconvenient since the Mac needs to be turned on and connected to the same network to print from your other devices.
For all perspective buyers, I highly recommend considering this printer.