Apple PowerBook Duo Dock (including Duo Dock Plus) - Manual (Page 21)

Ejecting the PowerBook Duo from the Duo Dock
1 Shut down the PowerBook Duo by choosing Shut Down from the Special menu.
If a system problem prevents you from using the menu, you can shut down by
pressing the power button on the back of the dock (but you’ll lose work you
haven’t saved).
2 Unlock the dock (if it is locked).
Turn the key to the vertical (unlocked) position.
3 Press the eject button.
The dock ejects the PowerBook far enough so you can pull it out.
A useful shortcut
You can shut down the PowerBook Duo and eject it by simply pressing the
eject button (if the dock is not locked). When you do this, the system will
m remind you to save your work, if you haven’t done so
m close any open programs
m terminate your network or modem connections
m shut down the system
m eject the PowerBook Duo from the dock
If you press the eject button while the dock is locked, a message reminds you
to unlock it.
Eject button
15 Using the PowerBook Duo Dock