PharmaJet Tropis Mode D'emploi page 13

To inject, depress Activation Button with thumb. A "click" will be heard
c)
upon injection.
Verify Syringe contents were delivered by observing that the Plunger has
d)
advanced completely to the Syringe tip.
NOTE: If the Inner Core Housing returns to the original extended position
and becomes locked, simply press the Safety Button again (See Figure 11)
and start injection operation from Section 4.
Remove Syringe from the Injector by pressing the Eject button, as shown
a)
in figure 13.
Dispose of Syringe in accordance with local requirements.
b)
c) For storage, keep the Injector in the closed configuration.
5) Eject the Syringe
figure 13