Fixing Toner Specks on Brother MFC-8710DW

The Brother MFC-8710DW is a cost-efficient monochrome multifunction printer that delivers the printing needs of any busy offices. It produces professional black & white output at impressive print and copy speeds of up to 40 pages per minute. Like any other multifunction printers, this lets users’ print, scan or PC fax over your wireless 802.11b/g/n or Ethernet network or connects locally via its Hi-Speed USB 2.0 interface. It also features an adjustable, 250-sheet capacity tray for letter or legal-size paper, plus a 50-sheet capacity multi-purpose tray and an optional 500-sheet capacity paper tray is available for additional capacity.

This printer uses replacement printer cartridge, Brother TN-750 Toner Cartridge which offers a high printing page yield capacity of up to 8,000 pages at 5% coverage to help lower your operating costs. But similar to other laser printers, this is not an exception to having usual problems. One of these problems is having toner specks in your Brother MFC-8710DW. To fix this problem, you have to identify the problem. Toner specks are usually caused by these things:

• Rough-surfaced paper may cause the problem so make sure that you use paper that meets our specifications.
• Worn-out drum cartridge also can cause this problem. Replace the drum cartridge to fix this problem. The Brother MFC-8710DW uses replacement drum cartridge, Brother DR720 Drum Unit.
• Dirty corona wire and drum unit can also cause this problem.

To clean the corona wire, follow these steps:

1. Leave the machine turned on for 10 minutes for the internal fan to cool the extremely hot parts inside the machine.
2. Press the front cover release button and then open the front cover.
3. Take out the drum unit and toner cartridge assembly.
4. Clean the corona wire inside the drum unit by gently sliding the green tab from left to right and right to left several times.
5. Put the drum unit and toner cartridge assembly back into the machine.
6. Close the front cover of the machine.

While to clean the drum unit, follow these steps:

1. Make sure that the machine is in the Ready mode.
2. Press Menu. Then press the Up or Down arrow key to display Print Reports.
3. Press Print Reports. Then press the Up or Down arrow key to display Drum Dot Print. Press Drum Dot Print.
4. The machine will display Press Start. Press Start to print the drum dot check sheet.
5. Leave the machine turned on for 10 minutes for the internal fan to cool the extremely hot parts inside the machine. After the machine has cooled down, turn off the machine's power switch.
6. Press the front cover release button and then open the front cover. Take out the drum unit and toner cartridge assembly.
7. Push down the green lock lever and take the toner cartridge out of the drum unit. Make sure that the drum unit gear is on the left hand side.
8. Use the numbered markers next to the drum roller to find the mark. Turn the drum unit gear toward you by hand while checking the surface of the suspected area.
9. When you have found the mark on the drum that matches the drum dot check sheet, wipe the surface of the drum gently with a cotton swab until the mark on the surface comes off.
10. Turn the drum unit back over.
11. Put the toner cartridge back into the drum unit until you hear it lock into place. If you put the cartridge in correctly, the green lock lever will lift automatically.
12. Put the drum unit and toner cartridge assembly back into the machine.
13. Close the front cover of the machine. Turn on the machine's power switch.

Steps are from Brother Solutions Center