Auditing system for a digital copier-printer

摘要

In a multifunction digital printing apparatus, such as a copier-printer, image data from print jobs are intermingled with image data from copy jobs, such as originating from a digital scanner. Further, scanner-only functions such as electronic filing and sending facsimiles can be performed without need for printing hardware. An auditing device can decrement a user's account on a per-sheet basis regardless of whether a requested job requires the use of the scanner or printing hardware or both.