How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Richard Your Own Question
Richard, Technician
Category: Printers
Satisfied Customers: 38513
Experience:  Printer and scanner problem resolver for over 15 years
Type Your Printers Question Here...
Richard is online now
A new question is answered every 9 seconds

When plugged in there are black squares in the window, even

This answer was rated:

when plugged in there are black squares in the window, even when hitting menu it will not change. will not scan or anything else. When trying to install to computer it will not go past the plug in printer part of the install.
JA: What is the machine's exact make and model? And can you guesstimate how old it is?
Customer: Brother DCP-L2420DW and was purchased April 30 2015
JA: What kind of computer are you printing from (Mac or PC)? What Operating System (OS) are you running?
Customer: PC, Windows 10
JA: How long has this been an issue? What happened right before this popped up?
Customer: it was shipped from one place to another
JA: Anything else you want the Printer Expert to know before I connect you?
Customer: not that I know

Thank you for your question, my name is ***** ***** I look forward to assisting you.

Please note, a rating is only needed when we are finished.

Can you please remove the power to the printer (so unplug it from the power socket).

Then wait 10 minutes, connect the power again to the printer, turn it on and tell me please if it is now operating correctly.

Let me know the results please

Customer: replied 29 days ago.
All is still the same

How is it connecting to the computer?

Via wireless or a USB cable?

Customer: replied 29 days ago.
usb, it is on another computer. I have tried it on one other computer also.

Ok so on multiple computers it is not installing?

This will tell me if the printer is the issue here

Customer: replied 29 days ago.
it get to where it says to turn on printer and plug usb, it will not go any further


Remove the toner from the printer then power it off and remove the power from the power socket

Use a lightly damp cloth and wipe the inside where the toner goes in

Let it dry for 10 minutes, put the toner back in, power it on and try to connect to it

If it fails, switch the toner with a new one and try to connect again

Let me know the results please

Thank you

Customer: replied 29 days ago.
all is still the same


It is the internal mainboard that has faulted, this now confirms it as we have ruled out all other causes for this

I am really sorry about this and you are going to have to return the printer to have this replaced. It will be covered by the warranty if this has not expired, and the replacement will be done at no cost to you.

I am really sorry about this, and if you have problems, or would like any additional information or assistance, please do not hesitate to let me know.

And if you can take a second to rate my service by clicking one of the stars at the top of the page, then submit, that would be greatly appreciated.

Thank you

Richard and other Printers Specialists are ready to help you