Password

Have you used the meimac password before?  I believe it only works once.  Here is the process in case you don't have it:

1) At the prompt for the system password, enter meimac.  A random 6-digit number displays on the screen.  For example, 876743.

2)Write the number down and create a new 6-digit number by adding alternating digits from the random number as follows. Add:

First and Third digits, second and fourth digits, third and fifth digits, fourth and sixth digits, fifith and first digits, and sixth and second digits.

Disregard 10s column with adding the digits.   The new number from the above would be 440020.

3) Enter the new number, then press the Enter key.  They System Setup menu displays.  You should then reprogram the password permanently.

The default system password is SYSTEM. If this does not work then you will need to follow the procedure below to change the unknown password.

Substitute Master Password
If you do not have access to the system’s password, you can create a
master password as follows.
1. At the prompt for the system password, enter meimac. A random 6-
digit number displays on the screen. For example, 876743.
2. Write the number down and create a new 6-digit number by adding
alternating digits from the random number as follows. Add:
* first and third digits,
* second and fourth digits,
* third and fifth digits,
* fourth and sixth digits,
* fifth and first digits, and
* sixth and second digits.
Disregard the 10s column when adding the digits. The new number
from the example above would be 440020.
3. Enter the new number, then press the Enter key. The System Setup
menu displays. This process only works once, so you should
reprogram the password permanently.

4. Go to the Basic System menu.
5. Select Miscellaneous Setup.
6. Select the System password line and type the new password in the
space.
7. Press the Enter key.
8. Select Save Setup from the System Setup menu.
9. Select To system.