Epson 10020 - Manual (Page 179)

Floppy Disk Drives and Controller Check
Use this option to test the performance of the diskette (floppy
disk) drives inside or connected to your computer. This test
includes several checks that allow you to identify particular
problems related to your diskette drives.
To run these tests, you need a formatted diskette so the tests
can write data on the disk in the drive. In a 360KB drive, you
can use only a 360KB diskette. In a 720KB drive, use only a
720KB diskette. If you need to format a diskette, you can do it
without leaving the diagnostics program; see “Formatting a
Diskette,” below. If you already have a formatted diskette, go on
to “Starting the Floppy Disk Drive Check.”
Formatting a Diskette
To format a diskette without leaving diagnostics, follow these
steps:
1. From the DEVICE LIST menu, press 0 to exit. The
OPERATION MENU appears on the screen.
2. Press 2 and Enter to select Format diskette. If you
have two diskette drives, you see this message and prompt:
Format Diskette
Format in which drive (A/B)?
Press A or B and Enter. If you select A, this prompt is
displayed:
Insert new diskette for drive A:
and strike ENTER when ready
3. If you have only one diskette drive, remove the Reference
diskette
from drive
A.
D-22 Performing System Diagnostics