How to Change Your Facebook Voice Preferences
By default, your Facebook business Page settings are such that when you’re on your own business Page, any post you make appears to be from your Page. (In other words, the Page image thumbnail and name are what people see for those posts.)
You can change this setting and post as yourself (your personal Profile) on your own Page, too. Your Page may be for your magazine, for example, but you want to post as yourself — the publisher — for a particular reply or comment to a post. You need to change the voice by clicking the link shown.
You see this link only if you’ve gone to the Page as your personal Profile. Businesses have to decide how they want their Admins to post and comment on the Page. Some businesses “sign” their posts with their real names, and some switch between Page Profile and personal Profile, depending on what they’re posting on the Page.
How an Admin posts on a Page should be spelled out in a social media policy so that everyone is on the same page (pun intended).