Epson LT - 286e - Manual (Page 16)

After selecting error logging, DIAG uses this device (and/or
disk drive) for error logging until you indicate you do not want
error logging. You can then specify a new device and/or disk
drive by selecting error logging in the Run Time Parameters
window. When you specify a new device and/or disk drive,
DIAG erases the existing ERROR.LOG file.
If you select the printer, DIAG writes the error messages to the
device connected to your parallel port assigned LPT1. If you
select the serial port, DIAG writes the error messages to the
device connected to your serial port assigned COM1.
If you select Cancel error logging, DIAG changes
the error logging response from Y to N.
When you specify the device for error logging, one of the error
messages may appear:
Floppy disk A not present
Floppy disk B not present
Hard disk C not present
Printer port not present
Serial port not present
Error in printer status
Error in serial port status
Error in floppy drive A
Record the error message and select a different device for error
logging.
System Diagnostics 11