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The fuser is a separate component to the drum and toner in this printer. It has a much longer life than them but will run out eventually. Sadly a fuser unit is not a commercially available consumable for this
printer either. I would recommend contatcing a printer technicain or Brother
directly for a quote on replacing this part.
When the drum light is on solid, it's time for a new drum, if you have a new drum, just open the front door and hold the go button til all lights flash and the drum is reset. Press the go button 3 times and it will print a sheet showing the drum status.
This is caused by a faulty drum/charging circuit or laser unit.
The drum is positively charged with static electricity and a laser draws the image onto the drum (changing the charge to negative) the toner is positively charged to it will adhere to the negatively charged image which is now on the drum.
your problem is that the drum is either not being positively charged or the laser is charging the whole drum.
There is a corona wire on the drum, remove the drum, sweep the corona wire (there will be a tab that moves left and right) and try it again. next step is to replace the drum. if you dont have a spare drum or one from another printer then it may be more cost effective to buy another printer as drums are quite expensive and it may not even be the problem.
The HL-2070N gets stuck in a toner end-of-life error condition. Perform the following to clear :
With paper loaded, new toner in,
Open front door
Turn off printer
While holding down the GO button, turn printer back on
When all four LEDs light up release GO button. All LEDs will turn off
Press the GO button 2 times. The 3 LEDs (toner, drum, paper) will light up solid
Press the GO button 5 times
Paper light will be blinking
At this point the toner end-of-life condition has been reset. Close front door.
BTW, I got this from Brother Support. Also, just a reminder, timing is important here so don't pause between button presses.
Seems like the drum needs changing. This is the most common cause for print problems in these printers. If using the high yield TN 6600 toner then you need to change the drum every 3-4 toners. If using the low yield TN 6300 toner then the drum will need replacing every 6-7 toners. Hope this helps
in laser printers, theres a charging corona wire that gives the paper a 600v positive charge which attracts the toner. once the paper hits the drum, a laser with a 600v negative charge is shot at the paper which discharges the paper and the toner isnt attracted to that area anymore.
either the laser is malfunctioning and not shooting a beam at the drum which would make all the toner go to the paper, or theres something wrong with the toner cartridge.
try going to the brother website and downloading the driver again (cheap and easy) and if that doesnt fix the problem, replace the cartridge, i know, not cheap. if neither fixes the problem, call the brother support line and see what they can do for you. maybe the warranty will cover the repair costs for you.