We have 3 facilities/sites with total about 70 users through merge or acquisition. Each site has its own LAN and AD domain. We set up Trust Relationship between domains so users can access shared network resources in the head quarter. Our users are not well-educated so sometimes they forgot their password right after a long vacation. The admin needs to know every user's password so he can set up on scanners to scan documents to network drives.
It has been just fine till recently some users asked not to disclose their passwords even to the admin.
Can you tell me how should we do? Any suggestions?