Epson AcuLaser C4000 Owner's Manual page 232

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4. Remove the standard lower cassette from the printer.
5. Remove the two screws securing the front of the unit to the
printer.
Warning:
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Removing other screws and covers will expose high voltage areas.
222
Using Options
Warning:
Be sure to lock both casters before removing the unit from the
printer. Otherwise, the unit may move and cause an accident.