Information processing device with user authentication that restores previous operation condition

An information processing device comprising:

• an authenticating part that authenticates a user;
• an operating part that receives setting information input by the user authenticated by the authenticating part, and to cause a first memory part to memorize the setting information;
• an authentication canceling part that cancels an authentication of the user authenticated by the authenticating part, and to delete the setting information memorized in the first memory part;
• an operation condition memory part that causes a second memory part to memorize the setting information memorized in the first memory part when the authentication canceling part cancels the authentication of the user;
• and
• a reproducing part that confirms whether or not the setting information is memorized in the second memory part when the authenticating part authenticates the user, in a case where memorized, to read the setting information from the second memory part, and to reproduce an operation condition based on the read setting information;
• wherein
• the reproducing part confirms whether or not the setting information is memorized in the second memory part, in a case where not memorized, displays a non-user condition specification screen for the user's selecting one of multiple functions, instead of displaying a user condition specification screen including the operation condition that is reproduced based on the setting information read from the second memory part.