Hitachi 8450H/R - Manual (Page 27)

Ch 2: Installation and Use of Devices
Hitachi PC VisionBase 8450H/R Server 23
Ejecting a cartridge from the drive
1. Press the Unload button. (While the tape is rewound, the tape-in-use lamp blinks.)
2. When the handle operation lamp comes on, lift the handle.
3. Remove the cartridge.
4. Press down the handle.
After lifting the handle, wait for a while before removing the cartridge.