Editing Brother printer dcp 3550 cdw cartridges failure (section)

==Issue Description==
Aftermarket toner manufacturers use '''battery-powered chips''' to bypass Brother’s authentication system. When the '''1.5V battery inside these third-party chips depletes''', the printer fails to recognize the cartridge, displaying a misleading "No Toner" error message, even if toner remains in the cartridge.

This issue '''does not affect OEM Brother cartridges''', as they use '''a different chip design that does not require a battery'''. Brother’s chip system is primarily used for '''tracking toner levels and verifying cartridge authenticity''', which can restrict third-party toner compatibility but is not responsible for battery failures in non-OEM cartridges.<ref name="printerforums1" />

[[File:Toner life screen.jpg|thumb|left|Toner life despite error screen]]

{| class="wikitable" style="clear:both"
|-
|[[File:Toner chip emplacement.jpg|300px|Battery is usually hidden behind the chip]]
|[[File:Chip.jpg|300px|This is the chip]]
|-
|Battery is usually hidden behind the chip (removed for this photo)
|The toner chip that contains the battery
|}

[[File:Error Display.jpg|thumb|left|Error display of the issue]]
{| class="wikitable"
|-
|[[File:Toner with chip.jpg|300px|This is where the chip resides]]
|[[File:Battery of the chip.jpg|300px|Battery of the chip]]
|-
|Location where the chip is installed on the cartridge
|Close-up of the battery on the chip
|}