Lexmark W820n - Serial <X; Staples Empty; Staples Low; Std bin Full

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Serial <x>
What this message means:
A serial interface is the active communication link.
Staples Empty
What this message means:
The staple cartridge is out of staples, or a staple cartridge is not installed.
What you can do:
Install a new staple cartridge to clear the message.
See also:
Replacing a staple cartridge
Staples Low
What this message means:
The stapler has only a few staples remaining.
What you can do:
Install a new staple cartridge to clear the message.
See also:
Replacing a staple cartridge
Std Bin Full
What this message means:
The standard bin is full.
What you can do:
Remove the stack of paper in the bin to clear the message.