I've replaced the toner and drum. Now the drum light keeps flashing. How do I reset it?

When replacing the drum on the Brother Machines you need to reset the machine's drum counter. To do this, with the front of the machine open (Where the Drum and Toner unit go) press and hold the go button till all the lights (Toner, Drum, Error and Ready) are lit then release the go button. Close the front of the machine and your drum counter has been reset.

This means that you will need to replace the drum soon. Order a new drum and when the light becomes steady or the print quality becomes poor, replace the drum. The drum should last ~12,000 pages. The part number is DR350. You may be able to order this from your Office Supply store; otherwise try the Brother Mall site: http://www.brothermall.com/Accessories/AccessoryDetail.aspx?AccessID=DR350&AspxAutoDetectCookieSupport=1 .

The procedure is similar to replacing the toner but instead of putting a new thing of toner inside the drum, you remove the toner and put it in the new drum. Open the front cover and pull out the drum and toner assembly. Place on newspaper or other disposable material (toner may spill). Push down the blue lever to unlock the toner cartridge. Remove the cartridge from the drum. Unpack the new drum (keep it out of the light until ready to replace the drum). Push the toner cartridge into the new drum until it locks into place; the blue lever should lift automatically. Put the assembly back in the printer. Clean the printer as recommended in the manual while it is open; this includes cleaning the corona wire before replacing the drum assembly.

After replacing the drum, reset the drum counter: with the printer on and the drum light blinking, open the front cover and press and hold the GO button until all of the LEDs light up (about 4 seconds). Then release the GO button and close the cover. Check that the drum light is off. (The manual says you should do the reset first but I tend to avoid this in case of distractions.)

I hope this helps.

Cindy Wells

For the drum you open the front door and hold the go button until the lights all flash and the drum is reset. If the toner light is on you need to add a new toner as well.

You need to replace the drum and reset the printer for that to go away, open the front door and hold the go button til all lights flash and the drum is reset. If quality is OK you can keep using the old drum. If you press the go button 3 times it will give a report showing the life left in the drum.

The drum light is triggered by a page counter. To reset it, hold the GO button with the drum door opened until the light goes out (10 seconds). Close the door and it should be reset.

Did you reset the drum count? You can do this by holding the cancel button until all lights flash clearing the drum count. This should fix the issue.

I continued looking and found where someone else had the same problem. I opened the front cover, held down the go key for 10 seconds and closed the door. This reset something because it works now.

Thanks

f the Drum LED is still lit after replacing the drum unit, the Drum counter may not be reset.
Reset the Drum counter as follows:

1. Open the front cover.
2. Locate the control panel button under the LED lights on the left side.
3. Press the control panel button until all lights are lit, then release it.
   The Drum counter is now reset.

Drum light reset below

Open cover

Press and hold down Go button for about 4 seconds until all the LEDs light up. Once all 4 LEDs are lit, release the Go button

Close cover

link to MANUAL

Drum counter usually has to be reset.. Check user manual or go to Brother's site if you want to drive yourself crazy Ed