Server-less Pull Printing via Mobile Terminal Discovery

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Solution Overview

Problem

Existing pull printing systems require a dedicated server, are complex to manage, and difficult for small or medium-sized offices to install and operate, especially when multiple multifunction printers (MFPs) are involved, and pose challenges when trying to print from MFPs outside the network.

Innovation Solution

A server-less pull printing method using a mobile terminal that discovers and communicates with MFPs via phone number, allowing print job data to be transmitted directly to the mobile terminal or a relay server for external access, enabling printing without a dedicated server infrastructure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a dedicated server is installed to enable pull printing, then printing functionality is achieved, but system complexity and installation costs increase

Engineering Contradiction:
Improveprinting functionalityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the server functionality from the traditional pull printing system and relocates it to the mobile terminal. The mobile terminal now acts as an intermediary that stores print job data and facilitates communication between the MFP and external networks, eliminating the need for a dedicated server while maintaining printing functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The mobile terminal is given multiple functions: it serves as a print job data storage device, a communication bridge for network access, and a control interface for the MFP. This multi-functionality replaces the dedicated server's role while adding mobility and network flexibility to the system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple MFPs are connected to the server, then printing options increase, but system management complexity increases

Engineering Contradiction:
Improveprinting optionsVSAvoidsystem management
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The mobile terminal acts as an intermediary between multiple MFPs and the external network. It maintains a database of multiple MFPs with their respective information (IP addresses, phone numbers) and manages print job routing between them, simplifying the user experience while supporting multiple devices.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If MFPs are connected through network registration, then pull printing is enabled, but network dependency increases

Engineering Contradiction:
Improvepull printing capabilityVSAvoidnetwork flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent replaces the traditional network-based connection mechanism with a phone number-based discovery and connection system. The MFP and mobile terminal can establish communication through phone numbers without requiring network registration or being on the same network, enabling printing from external locations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Ease of operation

If users manually authenticate and select print job data, then printing control is precise, but user operation complexity increases

Engineering Contradiction:
Improveprinting controlVSAvoidauthentication time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system implements self-service through automatic authentication mechanisms. The mobile terminal automatically authenticates with the MFP using stored credentials, and the system automatically retrieves and transmits the correct print job data without requiring manual user authentication or selection, reducing both complexity and time loss.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2814269B1Pull printing method, apparatus and system
Publication Date: 2022.09.14 HEWLETT PACKARD DEVELOPMENT COMPANY LP
  • EP2814269B1 patent drawingFigure 1A
  • EP2814269B1 patent drawingFigure 1B
  • EP2814269B1 patent drawingFigure 2

AI summary

A pull printing method, apparatus and system are provided. The pull printing system includes a mobile terminal (20), a client (10) that discovers the mobile terminal (20) by using a phone number according to a print command of a user and transmits rendered print job data to the mobile terminal (20), and an image forming apparatus (40) that, when connected to the mobile terminal (20), receives the print job data from the mobile terminal (20) and performs printing.