Print Media Source Scheduling for High-Velocity Printer Uptime

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Solution Overview

Problem

Operators in high-velocity industrial environments face challenges in managing print media supply and destination efficiently, leading to printer downtime and cumbersome manual operations, especially with large media sizes and lack of control over media sources.

Innovation Solution

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

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If operators manually manage print media sources using conventional interfaces, then they can control media loading, but printer downtime increases and operational efficiency decreases

Engineering Contradiction:

Improveprinter uptimeVSAvoidmanual media management complexity

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The system enables self-service through automated media source scheduling and intelligent tray management. The printer automatically monitors media levels, schedules media loading operations, and manages tray assignments without requiring continuous operator intervention, thereby increasing uptime while reducing operational complexity

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical media management with an automated control system that uses software algorithms to schedule media loading, assign trays to jobs, and monitor media levels. This substitution of mechanical/manual operations with automated control logic resolves the contradiction between productivity and ease of operation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If operators use conventional print job schedulers with timeline views, then they can monitor media usage, but they lack control over which print media sources are used and cannot make optimal loading decisions

Engineering Contradiction:

Improvemedia source control flexibilityVSAvoidmedia source assignment visibility

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The system segments media source management into distinct controllable units (individual trays and pallets) with specific assignments to job types. Each media source can be independently configured, monitored, and controlled, giving operators granular flexibility over which sources are used for which purposes while maintaining full visibility through the scheduling interface

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements local quality by allowing different media sources to have different properties and assignments optimized for specific job types. Operators can assign specific trays or pallets to specific media kinds and job categories, creating localized optimization for each media source while maintaining overall system coordination through the scheduling system

Inventive Principle:

Principle #3Local quality

3Ease of operation

If operators unload and load print media manually, then they can replenish media sources, but the process is time-consuming and cumbersome especially with large media sizes

Engineering Contradiction:

Improvemedia loading easeVSAvoidmedia loading time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The system performs preliminary action by pre-scheduling media loading operations and preparing media sources in advance. The scheduling system anticipates media depletion and automatically plans loading operations before they are needed, reducing the urgency and time-critical nature of manual media handling while maintaining continuous printer operation

Inventive Principle:

Principle #10Preliminary action

4Adaptability or versatility

If the printer uses embedded controls to automatically select print media sources, then operation is simplified, but operators cannot make optimal choices about media source loading

Engineering Contradiction:

Improvemedia source selection controlVSAvoidcontrol system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges embedded automated control with operator decision-making capabilities in a unified scheduling system. The system combines automatic media level monitoring and tray assignment algorithms with operator-configurable media source selection, creating an integrated control system that provides both automation and adaptability without requiring separate control mechanisms

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20250335732A1Print media source processing printer and a method therefor

Publication Date: 2025.10.30 CANON PRODN PRINTING HLDG BV

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.