You can set a password to a document, and prevent unauthorized print of the document.
Open the document to print.
Select [Print...] on the [File] menu.
Click [Job Log] in the pop-up menu.
Click [Locked Print] in the [Job Type:] pop-up menu.
Enter user ID in the [User ID:] box using up to 8 alphanumeric characters.
Enter the password in the [Password:] box.
You can use 4 to 8 digits for the password.
Print the document using the print function in the document's native application.
The document is not printed at this time, but is instead stored in the machine.
Enter the password using the machine's control panel, and print the document.
For details, see Printing a Locked Print file using the control panel.