Epson LT - 286e - Manual (Page 25)

Refresh Test
This test checks the refresh interval.
If an error occurs, DIAG displays this message:
Failure in Refresh test.
When the test completes successfully, you see this message:
Refresh test passed OK.
Hard Disk Diagnostics
The tests listed in the Hard Disk submenu provide a complete
diagnostics check of the system’s hard disk drive.
Hard Disk Format
Auto Interleave
Media Analysis
Perform Test
Seek Test
Read/Verify Test
Check Test Cyl.
Force Bad Tracks
Hard disk diagnostics tests may be destructive or non-
destructive. Destructive diagnostics destroy data on the hard
disk. Non-destructive diagnostics do not destroy data on the
hard disk.
20 System Diagnostics