How do you take your PlayStation Network account off of a PlayStation without deleting it?

"Once a Sony Entertainment Network account is created, you can not delete it. It will remain on the PlayStation Network servers forever. If you wish, you may remove it from your PlayStation®3 computer entertainment system so it is no longer visible." see related link

They have a procedure for removing a Sony Entertainment Network Account. The following has been copied from related link"

1. On the XMB™, go to (Users) and log into the user that holds your Sony Entertainment Network account you want removed.
2. With the user name highlighted, press the button.
3. Select "Delete" and the user will be deleted.

Please note that if you delete a user, all game save data earned under this user will be deleted as well, be sure to copy any game saves you wish to keep to another user.