IBM 3590 - Manual (Page 94)

3. If the drive does not become ready, and no messages are displayed, call
your service representative. If a FID or ATTN message appears on the
message display, record the code message and see “FID or ATTN on the
Message Display” on page 73.
Leader Block Detaches from the Tape
Figure 18 shows a cartridge with a detached leader block.
1 Magnetic Tape
2 Leader Block
3 File-Protect Selector
Replace the leader block
2 on the magnetic tape 1 by using the materials
in the leader block repair kit (see “Tape Supplies” on page 89). The procedure
to reattach the leader block is in “Leader Block Replacement” on page 90. The
leader block may be stuck in the threading mechanism.
Notes:
1. The replacement leader block must be an exact replacement for either the
High Performance Cartridge Tape or the Extended High Performance
Cartridge Tape.
2. Use care in aligning the tape leader, the insert, and the leader block to
ensure proper loading of the repaired cartridge.
If the leader block does not come out of the drive when you remove the
cartridge, do not use the drive.
Figure 18. Tape cartridge with a Detached Leader Block
74 3590 Operator Guide