Olivetti M15 Plus - Write-Protection

WRITE-PROTECTION
The diskette carries a write-protect mechanism, which you
can easily activate and deactivate yourself.
When the write-protect mechanism has been activated, the
disk can only be read, but not written to. In this way,
you can protect any important information on the disk from
being
inadvertently erased or written over.
The write protection is activated in the following way:
Hold the diskette in such a way that you are looking at
the under side, with the circular drive mechanism
visible in the center, and the protective shutter away
from you.
Slide the tag (28,8) (in the bottom right hand corner),
down as far as it will go using a fingernail, or the
point of a pen, as indicated by the arrow in the
illustration (28), until you feel a click. The write
protect opening should now be clearly visible, from
both
sides. The diskette can now not be written to,
only read.
The write protection is deactivated in the following
way:
Hold the diskette as before and slide the tag (29,8)
upwards as indicated in the illustration (29) , to
cover the opening. When the opening is completely
covered (you should again feel a click), the diskette
can be written to and read.
M15 PLUS INSTALLATION AND OPERATIONS GUIDE