Brother MFC-5490CN is blurry

SOURCE: Double prints or Text shadow printing by MFC 420CN

yes. you have to run the alignment feature. press ink - set - arrow-down til alignment. After alignment test print read the paper and choose the right setting by nr.

SOURCE: My Brother MFC-465CN is printing text with alignment off and double text.

My Brother printer MFC-465cn is doing the same thing. I have workaround / worked-around it by disabling bi-directional printing. Then print is clear. It's as if the head is shifting an irregular amount on the opposite direction, like the head is loose.

Same for copies. If I use the PC interface to make copies, I can set the copy printing to be mono-directional, then copies are clear.

SOURCE: My brother printer in printing blurry?

I have bro-420C. Same problem. I used the option Ink. There is "cleaning" option. It helped to make it much better.

SOURCE: "brother mfc 7840w printer goes offline and i cannot print need turn printer on and off.

The solution, and it took me a long time to find the simple solution, is to right click on your printer, click properties, click the ports tab and click on your Brother printer and click on configure port (or you can delete the existing one and then add another one). What you want to do is update the IP Address. The problem is that the printer does not have a static IP address, it is dynamic. If you want to confirm that, go to your printer and press the reports button and print out the network configuration report. Your IP address will show on that. It's really the last digit in the IP address that changes. This will absolutely solve your problem. Good Luck!

SOURCE: how do i align my printer, it's printing blurry but copies fine

the problem is with the main board. I fixed two of the exact same problem before.