20 Most Recent Brother HL 5250DN Laser Printer Questions & Answers

All four LED's flashing together indicate an error that cannot be cleared by an end user. Normally a service call will be required.I would recommend getting in touch with Brother or a printer technician.

disconnect all usb cable from computer .power off again power on press & hold down go button press t times if print , reset printer drive in your computer or not print test page replace drum unit .

Your printer may have experienced damage to electronic components with the outage, especially if due to a lightning strike causing the outage. You should have a shop troubleshoot and decide if it will need a new board, such as a formatter/logic board.

HI Lan, Go To Below official Brother Printer Solution Page For Your problem, The printer will not turn on Brother Still having Problem Then follow Us For Brother Printer Support

The following worked on the 3 of our HL 5250DN printers that stopped printing for no apparent reason with both the status and toner lights on:

1: Turn off power and remove toner/drum
2: Tape the little spring loaded lever just inside the printer on the upper left hand side in the *DOWN* position! Do not replace drum yet and...
3: Turn power on to printer and let it cycle. Status/Toner lights will come on as usual.
4: Turn off printer, remove tape from lever, replace drum and turn back on.

After hours of working on one of the printers, virtually taking the entire thing apart and replacing fusers, toners and drums, I accidently stumbled onto this sequence. When I tried it on the other 2 printers, Voila! Took like 1 minute each. It must cause some kind of reset of the toner detection switch.

Here is the answer for Vista support on your printer from Brother:

http://www.brother.com/E-ftp/windowsvista/us.html

Does it print on the Windows XP computer just fine?

Open the "Printers" window.
Click with the SECOND (usually the RIGHT) mouse-button on the printer.
Click to "go online" or "use online" or click to disable the "offline" status.

I had the same problem on 4 Brother HL-5250's, I checked the whole printer, and couldn't find a paper jam, yet the red printer light wouldn't shut off. I finally followed the instructions on Brother's website for removing a paper jam, and the solution for all 4 printers was paper stuck in the fuser cover. See below on how to open the fuser cover.

Pull the tabs at the left and right hand sides toward you to open the fuser cover (1).

1. 
2. Hint
3. There are 2 kinds of covers at the rear of the printer. Please make sure to open both the back cover (step 7) and the fuser cover (step8).

Here's the link from HP, on how to open the Fuser Cover.
http://welcome.solutions.brother.com/BSC/public/eu/eu_ot/en/faq/faq/000000/000000/000026/faq000026_007.html?reg=eu&c=eu_ot&lang=en&prod=hl5250dn_all

You remove the drum/toner cartridge and run the blue tab on top back and forth several times then blow out the slot with canned air, while it's out you reach inside with a soft cloth and wipe the narrow window above where the drum sits, open the back door and shine a light inside to see if the lines are on the fuser roller, if there you will need a new fuser.

it is something about a problem with the drum! have to clean it up!

Take out the drum and look at it. There will almost certainly be a line of damaged drum surface exactly on the drum where you describe it is on the paper.
replacing the drum is the only option .

1. Open the front cover and leave it open while completing the following steps.
2. Turn the printer off.
3. Hold the 'go' button (or 'start' button) while turning the printer on. All panel lights should be on.
4. Release the 'go' button (or 'start' button).
5. Press the 'go' button (or 'start' button) 2 times.
6. Pause. All panel lights should be on.
7. Press the 'go' button (or 'start' button) 5 times. The toner light should be off (the error may be flashing). The paper light should be on or flashing.
8. Close cover. The ready light should be the only light on.

replace drum or drum unit

replace fuser unit

clean corona wire by green tab

press go button 2 times ,printer and computer is not connected properly .

need printer service ,some times when the laser unit dirty than u should clean all optical mirror inside laser unit. sometime comes from drum , also if the fuser unit defective, last chance change toner cartridge.

problem on paper feed sensor under the drum unit or problem on drum unit.

problem on drum unit.buy new one

reset drum counter 1 hold down go button 30 second all light off than press 3 times go button.drum counter reset. after 20,000 page need reset drum counter.