Image Forming Apparatus Remote Print Job Security

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional image forming apparatuses fail to prevent printed materials from being erroneously taken away when print job commands are given remotely using features other than PC printing, leading to confusion and misappropriation of printed documents.

Innovation Solution

The implementation of a security printing system that includes user authentication, job record storage, and pending job management, where print jobs are temporarily suspended and require direct user intervention to resume, ensuring that only authorized users can retrieve their printed documents by requiring direct login and operation of the device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If print jobs are executed immediately upon receiving remote commands, then printing productivity is improved, but the risk of printed materials being erroneously taken away increases

Engineering Contradiction:
Improveprinting speedVSAvoiddocument retrieval accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary authentication and user identification before executing the print job. The control unit stores the user ID in a holding register upon receiving a remote print command, but delays actual printing until the user physically presents themselves at the device and is authenticated through the operation panel. This preliminary action ensures that the document is released only to the authorized user while maintaining efficient remote job submission.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If user authentication and pending job management are implemented, then document security is improved, but device complexity increases

Engineering Contradiction:
Improvedocument securityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The authentication system is designed to be self-service oriented. When a user submits a print job remotely, the system automatically holds the job and waits for the user to return to the device. The user simply needs to interact with the operation panel to authenticate themselves (e.g., through card swipe, PIN entry, or touch ID), and the system automatically releases the document. This self-service approach provides strong security without requiring complex manual verification procedures or additional hardware components.

Inventive Principle:
Principle #25Self-service

3Loss of time

If immediate printing is performed, then processing time is reduced, but the occurrence of misappropriation increases

Engineering Contradiction:
Improveprocessing timeVSAvoiddocument misappropriation
Core Design Contradiction:
Loss of timeVSObject-affected harmful factors

Solution Approach 1:

The control unit acts as an intermediary between the remote printing system and the document release mechanism. It receives print jobs from remote devices, stores them in memory, and manages the release process. The intermediary function includes holding the document data, verifying user authentication, and controlling the document output. This intermediary layer prevents direct immediate printing while maintaining efficient remote job submission, as the control unit seamlessly manages the transition from remote command to authenticated release.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3280125B1Image forming apparatus, printing method, and computer program
Publication Date: 2022.08.03 KONICA MINOLTA INC
  • EP3280125B1 patent drawingFigure 1
  • EP3280125B1 patent drawingFigure 2
  • EP3280125B1 patent drawingFigure 3

AI summary

An image forming apparatus having a function to communicate with a terminal is provided. The image forming apparatus includes a receiver configured to receive, from the terminal, a print command to print a rasterized image having been stored; a user interface configured to receive, from a user, an execution command to print the rasterized image after the receiver receives the print command; and a printer configured to print the rasterized image after the user interface receives the execution command.