Protecting Data In Floppy Disks - Brother PD-3000 Instruction Manual

Protecting data in floppy disks

Floppy disks are provided with a write-protect to prevent data from deleting accidentally.
Write-protected disks are for read-only. You are recommended to write-protect floppy disks holding important data.
To enable the write-protect, slide the write-protect notch to the side where a square hole shows up.
CHAPTER 2 SETTING UP YOUR PROGRAMMER
Slide the notch in this direction to prevent data loss
or overwriting.
Slide the notch in this direction to write
data.
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