Question about Brother MFC 7420 All-In-One Laser Printer
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Posted on Jan 02, 2017
you forgot to slide the tab, unless you do this you cannot use your printer im afraid, drum unit is a cylindrical part unit, unless otherewise you correct this instlltion procedure there is no othere way around it
Posted on Nov 25, 2008
You need to open the printer access panel. Inside, there's the "drum", which is secured with plastic tabs.
Posted on Oct 28, 2009
SOURCE: Brother 4070 CDW Drum Unit Error
The green tabs that you have to slide are under the color cartridges, so remove the three color cartridges and you will see three green tabs, to slide the tab across the wire you have to first open the translucent plastic wire cover, then slide the green tab across the wires and return it to it's original position, close the wire covers, replace the color cartridges, and reassemble the printer. All the Best
Posted on May 03, 2010
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