I have a Brother HL-3040CN Printer, my problem is it gave an error message to REPLACE TONER CARTRIDGES FOR CYAN, YELLOW AND MAGENTA. Instead of replaceing the cartridges we got a refill kit and filled them, now I still get the same message. Is there some kind of reset switch?

On my black and white toner printer I wiped the drum off with a rag and it solved the problem.

You may want to try the following steps:

• Step 1 - First turn on your printer: Brother MFC 9840CDW.
• Step 2 - Push the button on the front of the printer to open the cartridge cover or the front panel of the printer where you can access the toner cartridges. However, do not remove the toner cartridges (Brother TN-115).
• Step 3 - Push the Clear/Back button and hold still to bring up a reset menu. There are 8 different toner functions ( two Black, two Cyan , two Magenta, and two Yellow).
• Step 4 - For each of the eight functions in turn, push the O.K. button and then push it again to indicate 'Reset'. After a few seconds, it will say 'Accepted' and will then display a message that the cover is open.
• Step 5 - Repeat the steps 3 and 4 for each of the other eight toner functions as needed.
• Step 6 - Once your finished, close the front cover of your printer so the status bar will be reset to normal with no error message.
• Also, you may want to clean the corona wires for each toner. Clean the corona wire inside the drum unit by gently sliding the green tab from left to right and right to left several times.

Had the same problem, called help center and fixed it!!!
Problem occurred when i tried to print colour labels from Word.
Black cartridge printing worked fine.
When using manual feed (pull down black panel in front which says 'brother'- you'll get the message for this if printing labels
you must open the back door of the printer.
got 'paper jam inside' error message.

Here's what I did and somewhere along the way, something worked.

Turn and unplug machine
take out all drum cartridges (all 4)
Take out the black belt (everything you can remove has a green arrow or tab- easy)
check to see if there's any paper in there- there was no paper in my case.
separate the drum from the cartridge for each colour and check the colour roller and the fuser film roller- don't touch them- no paper stuck that i could see
put them back together carefully.
Put the belt in and then the 4 cartridges
do a test run- mine still showed error message- paper jam inside
switch black with each cartridge and do a test run for each. When i switched with yellow - didn't work, magenta- didn't work- cyan- WORKED!!!- the colours were messed up on the document but it went through and printed without the error message.
Here's the sequence of what colour cartridge went in which spot.
Yellow in black slot
magenta in yellow slot
cyan in magenta slot
black in cyan slot.
then i switched them back to the way they are supposed to be and tried to print again and it worked!
the colour is amazing on this printer- i had the trouble right from the beginning after installation.
hope this helps.

Have the same problem, can't find the solution. Filed a complaint on the brother website feedback link, hopefully they will resolve if more people post problems with toner cartridge changes

This is the worst printer! i advise everyone not to buy!! changing ink every week!!!!! total garbage!!!!!!

There's a window on each end of the cartridges and light shines thru to show when they're empty, your refill toner may not be the right density. If you put a small piece of electrical tape over the windows on the cartridge, the error will go away, but you have to watch print quality to change or add toner.

Hi armaskopljak:
You have replaced the toner cartridge but you still have to replace the imaging unit which is the drom that the toner cartridge attaches to.
Toner Cartridge OK, Low, Empty When 15,000
(high-capacity cartridge) or
7,500 (standard-capacity
cartridge) pages are
printed (5% print density).
Imaging Units At/Near end-of-life When 30,000 pages are
printed out or when the
pixel counts are
exceeded.
A fuse in the new
imaging unit will blow
upon installation,
resetting the counter.
Verify color calibration. Clean lenses.

Xerox Part Numbers

Toner Cartridges:
Standard Capacity Yellow 016-1975-00
Standard Capacity Magenta 016-1974-00
‘ Standard Capacity Cyan 016-1973-00
Standard Capacity Black 016-1976-00
High Capacity Yellow 016-1979-00
High Capacity Magenta 016-1978-00
High Capacity Cyan 016-1977-00
High Capacity Black 016-1980-00

Imaging Units
Cyan 016-1993-00
Magenta 016-1994-00
Yellow 016-1995-00
Black 016-1996-00
Hope this helps

51.22 is a Magenta laser scanner error.
Try removing the magenta restarting the printer and reinstalling.
If that does not work you likely need a laser assm.
You might want to call a tech. to replace.

Do a hard reset on printer to restore factory defaults.

I had the same problem and found that one of the toner cartridges must have not been seated properly. I removed the black toner cartridge and re-fitted it. The printer now works fine again with no errors. 17H is a code relating to a fault in the rotation ......... possibly one or more toner cartridges need checking. Use the menu on the printer to turn it to the appropriate position (i.e. engine menu then select replacement of whichever toner you are checking).
Hope this fixes your as well.
Chris