Summary: I really like brother laser printers and have several. In fact I returned this design-flawed unit and replaced it with another Brother, so the following review isn't spiteful. I've read several reviews of this brother HL5470W blowing circuit breakers. But, I'll go one better. When we plugged in this little monster and turned it on it blew out our surge protector. Destroyed the thing not just tripped it.
Excerpt: Although this unit seemed to work well in the store, It would not work at home on standard 15 or 20 amp circuit breaker . This was very frustrating and a waste of 3 hours of my time. I later find out that this is a common problem with this unit and many solutions like firmware updates that people suggest on the web other than returning the unit do not work. Also... I purchased this unit because of its wireless capability.
Summary: This printer has consistent issue(read other blogs) with printing when it has been in sleep/deep sleep mode. (contrary to what the manual states). It will work eventually however. Using the keypad is not very intuitive for the basic person which contributes to the problem. Also, it is fairly noisy but not unbearably so.
Summary: I really wanted to like this printer. I had a Brother laser printer in the past that worked great but gave it away when I was moving (what a mistake :). I bought this based on my past experience, but should have trusted the reviews complaining of tripped circuit breakers. My house has all brand new wiring, and I even tried putting the printer on a circuit all by itself, and while sometimes it would go for a while without tripping the breaker, if it had been in sleep mode...
Excerpt: Last week I purchased the Brother 5470DW printer. The printer is causing my electric circuit to fail. There are many other reviews that have stated the same issue with your printers. I was planning on returning the printer soon, if I cannot find a solution. Is there anything that can be done to reduce the power output of the printer?
Excerpt: This printer worked beautifully for 2 days then it started printing completely black pages then it simply stopped printing and started flashing a message to re-start printer. I restarted it almost 20 times and the message is still flashing. Returning it today.
Summary: What I needed: a simple, 2-sided, functional laser printer to send to my parents to work with their new Chromebox. I thought this was that printer. It turns out, it doesn't work. Problems I encountered: - Turn it on. The house's circuit breaker pops. This printer has a power-spike on power-up, and doesn't work on 15-amp AFCI protected circuits. Moving it to another circuit fixed this.
Summary: As other reviewers have said, this printer has a power problem when it starts up initially (and apparently every time it wakes to start printing but I can't comment on that because I never got it booted completely) by drawing enough amps to trip a 20amp circuit breaker. I tried three (3) different outlets, on different circuits, all with the same results. When I powered it on, it would start to power up and then within 3 seconds trip the breaker.