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How-to Videos
How-to Videos
Black and White Printers
Lexmark MS421
Lexmark MS421
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Installing optional trays
Preparing your printer
Setting up the printer
Installing optional trays
Using your printer
Loading the multipurpose feeder
Replacing supplies
Replacing the toner cartridge
Replacing the imaging unit
Replacing parts
Replacing the pick roller assembly in the optional tray
Replacing the pick tire
Troubleshooting
Clearing paper jam in the front door
Clearing paper jam in the rear door
Clearing paper jam in trays
Clearing paper jam in the duplex unit
Learn how to install an optional tray on your printer.
View product documentation
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Preparing your printer
Setting up the printer
Installing optional trays
Using your printer
Loading the multipurpose feeder
Replacing supplies
Replacing the toner cartridge
Replacing the imaging unit
Replacing parts
Replacing the pick roller assembly in the optional tray
Replacing the pick tire
Troubleshooting
Clearing paper jam in the front door
Clearing paper jam in the rear door
Clearing paper jam in trays
Clearing paper jam in the duplex unit
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