Method of controlling a printing apparatus that scrambles identification information of an authenticated user and causes a printer to print characters obtained by scrambling the identification information, and related printing method, and non-transitory computer readable medium

摘要

A method of controlling an image forming apparatus having a scanner that scans a document to obtain an image of the document as the image and a printer that prints an image on a sheet. The method includes performing an authentication processing for authenticating a user that uses the image forming apparatus, causing the scanner to scan a document in accordance with a copy instruction by the authenticated user, obtaining a month, day, and time on which the image obtained by scanning the document with the scanner is printed by the printer, scrambling identification information of the authenticated user using at least one of the obtained month, day, and time, and causing the printer to print, on a sheet, (i) the image obtained by scanning the document with the scanner, (ii) one or more characters obtained by scrambling the identification information, and (iii) the obtained month, day, and time.