MFC-7840W
Replace Toner / Toner Low / No Toner Installed
-
With Brother consumables, you have to manually reset the counter
to let the machine know an item has been replaced.
- Make sure the machine is turned on.
- Make sure the cover is open.
- Press Cancel / Back.
- Replace Drum will appear on the display.
- Press *.
- Press 00.
- Press 11.
- When Accepted appears on the display, close the printer front cover. The printer is now ready for printing.
Replace Drum / Drum End / No Drum Installed
-
With Brother consumables, you have to manually reset the counter
to let
the machine know an item has been replaced.
- Make sure the machine is turned on.
- Make sure the machine's cover is open
- Press the Clear button
- For models with FAX functions: press 1. For models without FAX functions: press the Up Arrow Key.
- Once the printer shows Accepted the cover can be closed and the printer should be ready to use
My prints are faded
- If the print quality is poor, remove the toner cartridge from the printer and gently rock it side to side.
- This movement helps distribute the toner evenly within the cartridge.
- After rocking the cartridge 5–6 times, reinsert it and print a test page.
- If the issue persists, check the life of maintenance items in case they need replacing
My prints have marks on the page
Marks in the same place each time
- If the printouts have marks on the page in a repeating pattern, remove the drum from the printer.
- Using a lint free cloth gently clean the drum surface taking care not to touch the surface with fingers.
Printers that use Brother TN-2120 / TN-2110 cartridges
To see a full list of products that work in your printer, click on the model name below:
| MFC-7320 | HL-2140 | DCP-7030 |
| MFC-7440N | HL-2150N | MFC-7840W |
| HL-2150 | HL-2170W | DCP-7040 |
| DCP-7045N | HL-2170 | HL-2140W |
Printer Consumables
| DR2100 | DR2100-REM | TN2110 | TN2110-REM |
| TN2120 | TN2120-REM |
Brand names and trademarks are the property of their respective holders and are used for description purposes only.