IBM R30 Operator's Manual page 52

Unloading the 8 mm Tape Cartridge
Before performing the unload operation, make sure the power to the 8 mm tape drive is on.
To unload and eject the tape cartridge, press the unload button. The 8 mm tape drive
rewinds the tape and then ejects the tape cartridge from the tape drive.
After pressing the unload button, the following will occur:
1. The ready
2. The busy
3. The busy
Unload Button
The time required for a tape to rewind and unload is between 18 seconds and 3 minutes,
depending on the position of the tape when the unload button is pushed.
If the tape cartridge cannot unload and has to be removed manually from the drive, contact
your service representative.
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Operator Guide
status light goes off.
status light flashs during the unload operation.
status light goes off when the cartridge is ejected from the tape drive.
Ready Status Light
(Green)
Busy Status Light
(Green)
8 mm Tape
Cartridge
Write-Protect Switch