HP A3312A - Manual (Page 96)

Troubleshooting & Diagnostics
Diagnostic Information
90
Troubleshooting
Code Description
F4h Cleaning sequence occurred. Only logged in EEPROM for firmware earlier than
version V10.
F5h Invalid command opcode received from buffer. HARDWARE ERROR.
F6h Invalid device parameter received. HARDWARE ERROR.
F7h Defect in device firmware. HARDWARE ERROR.
F8h Invalid tape format. HARDWARE ERROR.
F9h No tape present; tape expected. HARDWARE ERROR.