Fujitsu ScanSnap N1800 Operator's Manual page 305

When using a scanner without using an LDAP server or registering a local account,
enter the following user name and password. For details about the LDAP server,
refer to "LDAP Server" (page 50).
User Name: guest
Password: guest
However, this cannot be used if login with the guest account is disabled.
For details about automatic login or enabling login with the guest account, refer to
"4.7.1 Setting the Login Settings" (page 104).
Only one administrator or user can login to the scanner at same time.
1. Push the power button.
The [Login] window appears.
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