Apple 3.5" drive issue

[David Williams via cctalk]

Moved recently and finally have space to set up the collection and play 
with it. I've set up my Apple IIgs and a Macintosh Plus and in testing 
they are still working but while doing so I've noticed an issue with the 
3.5" drives. I have an Apple Superdrive and 4 Apple 3.5 Drives on the 
IIgs and where they all work as far as reading and writing, only the 
Superdrive can actually eject the disks. The Mac Plus has the internal 
drive and an external Apple 800K drive, both of which work except not 
being able to eject disks either. So out of 7 drives, I have one that 
doesn't need a paperclip to eject the disk. Haven't opened them up to 
look at them yet, wanted to see if this is common and suggestions on 
possible causes to check.

Thanks.
David Williams
www.trailingedge.com