When replacing the toner cartridge, you MUST install a brand new, unused genuine Brother toner cartridge in order to reset the toner status. Swapping toner cartridges from one machine to another or installing a partially used toner cartridge may cause this problem. Brother machines control their image quality for the most suitable print quality by monitoring toner consumption. If you install a partially used toner cartridge, your Brother machine is unable to recognize toner consumption correctly which will cause this problem. Therefore, when you replace the toner cartridge, please use a brand new toner cartridge, not a partially used toner cartridge from another machine.
SOURCE: Brother 4070 Printer will not recognize new toner cartridge
Hi
Just cover the eyes (on both sides) that you can see in the bottom of the machine after removing the imaging cartrige with a small piece of electrical tape.
With printer switched on push the switch which is located inside the upper left side of printer (it is a small white switch) and then release it.
Also try resetting the gear, take the cartridge out. On the gear side take off 2 screws, the black gear on top right side, with a small spring underneath. Just take it off and reset it (rotate clockwise) so it is not at the stopping point.
Please do accept this solution and revert for further assistance.
Thanks
Rylee
SOURCE: Brother 5250DN Printer Toner light
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.
SOURCE: Brother 5250DN Printer Toner light
Try resetting the toner counter manually;
* Turn off the printer and open the front cover
* Press and hold the Go-button down
* Turn on the machine while still holding button down, when all three LEDs are lit, release Go-button
* Press the Go-button twice, and all three LEDs should be lit again.
* Press the Go-button five times (six times if you have the High Yield toner)
* Close the front cover and the toner counter should be resetted.
SOURCE: replaced toner cartridge and light stays on the printer will not
how do i set the toner reset lever on a brother hl 5250 printer
SOURCE: Brother 5240 laser printer changed toner still wont work.
This works on several different Brother Printers to get rid of toner/drum empty errors:
1. Open the front cover and leave open while completing the following
steps.
2. Turn the printer off.
3. Hold the 'go' button while
turning the printer on. All panel lights should be on.
4. Release the
'go' button.
5. Press the 'go' button 2 times.
6. Pause.
7.
Press the 'go' button 5 times.
8. The toner light should be off.
9.
The paper light should be on or flashing [doesn't happen on all].
10. Close cover. The ready
light should be the only light on.
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