HP LaserJet 4300 Printer series - Manual (Page 57)

ENWW Printing envelopes 55
Removing the optional envelope feeder
Use these steps to remove the optional envelope feeder from the
printer.
To remove the optional envelope feeder
1 Press the release button that is located on the left side and pull the
optional envelope feeder away from the printer.
2 Replace the plastic envelope-entrance cover in the printer and
close tray 1.
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