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Re: Brother MFC-7420: Toner low - massege. But catridge...
The magic word is "refilled." Not all refilled cartridges work correctly. Try another cartridge (a new one to be absolutely sure) to verify the printer is working properly. But my money would be on "defective refill."
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Not sure about your model, but it is nearly always in the menu accessed through a button on the machine. The MFC 7420 does it this way: Switch printer on Open front cover press "Options" Then enter "*00" Should then see message saying toner counter reset
When the toner cartridge is exhausted or empty then theprinter will not be able to print further documents or the prints will be veryfaint.You may be able to print a few more pages by removing thetoner cartridge and shaking the toner cartridge in a horizontal position a fewtimes and then placing it back into the printer.This will give you an opportunity to print a few more pages and giveyou time to purchase a new toner cartridge for your printer. A cheaperalternative is to purchase a re-manufactured toner cartridge for your modelprinter.A re-manufactured printer cartridge also replaces worn partsas well as refilling with toner powder.
If you just want to REPLACE the toner cartridge, open the front door and jiggle the combined toner & drum units out. push down on a blue tab on the side to release the TN-350 toner cartridge and lift it out of the DR-350 drum cartridge.
If you have the toner cartridge out and want to refill it you7rself, DON'T. You can buy toner with about the right size grains, but Brother uses toner with grains that are much smoother and rounder than that aftermarket stuff. The toner is constantly stirred during the print process, and the rough-grained aftermarket toner puts up so much resistance that it often breaks a gear in the body of your MFC. Brother usually doesn't cover that one in their warranty.
all brother printers and mfc products. if you are using generic tonere or refills, brother products will not recognize the toner cartridge as the refillers do not know how to reset the toner cart. this is priority info. therefor u must use brother oem toner.brother service rep
open front cover, press OPTION button, on the LCD will appear a message "NEW DRUM?" ....DO NOT RESPOND....just type on the keyboard "*00" and there will appear a message "Accepted" and use it in your pleasure.
PS. in any case i blocked with paper labels the viewing windows from transparent plastic on the toner itself....
Mr. Brother, do not try to be smarter than your customer