![](/images/backgrounds/144306/144306-6438x1.png)
Used to prevent the tape from moving when it is outside the unit. When you insert a cartridge into the unit, its reel locks are released automatically.
Caution
Do not close the reel lock as this may cause loading problems.
KPositioning HoleUsed by the unit to determine the position of the cartridge in the unit.
Caution
Do not close the positioning hole as this may cause loading problems.
Setting the Write-protect Switch
The position of the
Cleaning Cartridge
The unit determines when heads need to be cleaned and alerts you accordingly. For details about how to use the cleaning cartridge, see “Head Cleaning” on page 41.
38 Chapter 4 Using the Media