Multi-Source Printer Scheduling With Dynamic Media Requests

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Solution Overview

Problem

Operators in high-velocity industrial environments face challenges in efficiently managing print media supply and destination in multi-media printers, leading to cumbersome operations and potential printer stoppages due to incorrect tray usage and lack of real-time media source control.

Innovation Solution

A dynamic print media request list combined with an agenda-like user interface that displays print media sources in chronological order, showing their usage status and scheduled times, allowing operators to make optimal media source loading decisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If operators manually manage print media sources using traditional interfaces, then they can control media loading, but the operation becomes cumbersome and time-consuming

Engineering Contradiction:

Improveease of media source managementVSAvoidtime for media loading and management

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The system automatically generates media requests and schedules media source usage without requiring manual operator intervention. The print controller autonomously monitors media levels, calculates requirements based on job queues, and manages tray scheduling, allowing the system to serve itself rather than requiring continuous operator attention.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operations (physically loading trays, calculating media needs) with an automated digital control system. The user interface presents simplified digital controls where operators can review automated suggestions and make single-click decisions, substituting complex manual procedures with streamlined electronic management.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Loss of information

If operators use traditional print job schedulers with vertical lists and timelines, then they can monitor media usage, but the interface becomes complex and information is not clearly visible

Engineering Contradiction:

Improvevisibility of media request informationVSAvoidcomplexity of scheduling interface

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The interface is segmented into distinct functional areas: a media request list showing specific media needs, a job queue overview, and a tray status display. Each section presents focused information rather than overwhelming the operator with a single complex view, making it easier to process information and make decisions.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transforms the traditional vertical timeline view into a more intuitive representation that displays media requests in chronological order with clear visual indicators of urgency. The interface adds dimensional organization by separating media source identification from usage timing, presenting information in a grid-like structure that improves scanability and comprehension.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Productivity

If the printer automatically decides which print media source to use, then the printing process continues smoothly, but operators lose control over media source selection

Engineering Contradiction:

Improveprinter uptime and continuous operationVSAvoidoperator control over media sources

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The system provides continuous feedback to operators through the user interface, displaying suggested tray assignments, media request status, and usage predictions. This transparency allows operators to understand the automated system's decisions and intervene when desired, creating a collaborative control model rather than purely autonomous operation.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary calculations and tray scheduling in advance, presenting optimized suggestions to operators before execution. This allows operators to review and approve decisions beforehand, maintaining control while benefiting from automated optimization. The system prepares media source assignments ahead of time but requires operator confirmation.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP4645057A1A print media source processing printer and a method therefor

Publication Date: 2025.11.05 CANON PRODN PRINTING HLDG BV

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AI summary

A print media source processing printer comprising a plurality of print media sources, a print controller comprising a print queue comprising print jobs, a print media source scheduler to schedule the plurality of print media sources, and a dynamic print media request list. The dynamic print media request list contains a requested amount and kind of print media in chronological order based on the jobs in the print queue and accumulated per kind of print media. Each print media source is configured to hold a stack of print media. The print media source scheduler comprises for each print media source a representation of the print media source which indicates if the print media source is in use or will be in use, and how long the print media source will be in use. Upon loading print media at a print media source, unloading print media from a print media source and/or updating the print queue, both the dynamic print media request list and the print media source scheduler are updating accordingly.