HP Pro 3420 Maintenance & Service Manual page 90

Table A-3
Diskette drive cannot write to a diskette.
Cause
Not enough space is left on the diskette.
Diskette is damaged.
Cannot format diskette.
Cause
Invalid media reported.
Disk may be write-protected.
Legacy diskette writes are disabled in Computer Setup.
A problem has occurred with a disk transaction.
Cause
The directory structure is bad, or there is a problem with a
file.
Diskette drive cannot read a diskette.
Cause
You are using the wrong diskette type for the drive type.
You are reading the wrong drive.
Diskette is damaged.
82 Appendix A Troubleshooting Without Diagnostics
Solving Diskette Problems (continued)
Solution
1. Use another diskette.
2. Delete unneeded files from diskette.
Replace the damaged disk.
Solution
When formatting a disk in MS-DOS, you may need to specify
diskette capacity. For example, to format a 1.44-MB diskette,
type the following command at the MS-DOS prompt:
FORMAT A: /F:1440
Open the locking device on the diskette.
Enter Computer Setup and enable Legacy Diskette Write in
Storage > Storage Options.
Solution
In Microsoft Windows XP, right-click Start, click Explore,
and select a drive. Select File > Properties > Tools. Under
Error-checking, click Check Now.
In Microsoft Windows Vista or Windows 7, right-click Start,
click Explore, and right-click on a drive. Select
Properties then select the Tools tab. Under Error-checking
click Check Now.
Solution
Check the type of drive that you are using and use the
correct diskette type.
Check the drive letter in the path statement.
Replace the diskette with a new one.