If a VT series terminal is connected to the maintenance port on the LW Pro 810, and you are unable to login to the "super user" account by typing the password "system," the following is a solution:
1) Hit the "F3" key on the terminal (this should put the terminal into setup mode)
2) Go to "General" setup
3) Under this area you should see "New Line" on the end of the third row
4) Change this entry to "No New Line" and retry the password
The problem stems from the fact that the printer is expecting "system" as a password and with the terminal set to "New Line" the VT is sending "system*" where the "*" is a carriage return; hence the printer thinks the password is wrong and displays the password> prompt again.