User Manual
Page 208
... the drive first. If you can access the second diskette, the first diskette (not the drive) is probably a configuration problem. Consult your software documentation for instructions see "Disk drive problems" on page 206). Carefully inspect the diskette. The drive cannot read a diskette. If the label is loose, replace the label and... cover or a loose label may also be obstructing the path into the optional external diskette drive. Run Error-checking on the faulty diskette (for file recovery procedures. A diskette will not go into the drive.
... the drive first. If you can access the second diskette, the first diskette (not the drive) is probably a configuration problem. Consult your software documentation for instructions see "Disk drive problems" on page 206). Carefully inspect the diskette. The drive cannot read a diskette. If the label is loose, replace the label and... cover or a loose label may also be obstructing the path into the optional external diskette drive. Run Error-checking on the faulty diskette (for file recovery procedures. A diskette will not go into the drive.