Print Job Priority Control for Photobook Post-Processing

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Solution Overview

Problem

Existing photobook generation systems fail to effectively control the output of print jobs to paper discharge trays, leading to mixing of print products from different jobs and neglecting the order of post-processing steps, which affects operational efficiency.

Innovation Solution

An information processing apparatus and method that determines job sending priorities based on the number of post-processing steps required for each job, ensuring that jobs with more steps are processed first and using paper discharge tray management to prevent mixing of print products, while also considering the availability of paper.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If paper discharge tray control is implemented for each page in a job, then paper discharge control is improved, but print products from different jobs may still mix in the same tray and be discharged

Engineering Contradiction:
Improvepaper discharge control precisionVSAvoidjob separation reliability
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The patent segments the paper discharge control by introducing separate paper discharge trays for different job types. Instead of using a single tray for all print products, the system divides the discharge path into multiple trays (e.g., first paper discharge tray for first job type, second paper discharge tray for second job type), preventing mixing of print products from different jobs while maintaining precise control over each job's discharge location.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If existing paper discharge control methods are used, then paper discharge is controlled, but the order of jobs is not kept based on post-processing step type

Engineering Contradiction:
Improvepaper discharge controlVSAvoidjob processing order information
Core Design Contradiction:
Manufacturing precisionVSLoss of information

Solution Approach 1:

The patent applies preliminary action by determining the discharge tray assignment before jobs are actually processed. The system pre-establishes the correspondence between job types and paper discharge trays based on post-processing step requirements, so that when jobs arrive, they are immediately directed to the correct tray without needing to track complex processing orders during execution.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If print products are discharged to the same tray, then discharge simplicity is maintained, but sorting and conveying to post-processing apparatus becomes troublesome

Engineering Contradiction:
Improvedischarge operation simplicityVSAvoidpost-processing efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent applies local quality by providing different discharge destinations for different job types. Instead of uniform discharge to a single tray, the system assigns specific discharge trays to specific job types based on their post-processing requirements. This localized differentiation maintains operational simplicity for each job type while enabling efficient sorting for post-processing.

Inventive Principle:
Principle #3Local quality

4Speed

If jobs are processed in parallel without priority determination, then processing speed is maintained, but jobs with more post-processing steps cannot be prioritized

Engineering Contradiction:
Improveprocessing speedVSAvoidoverall workflow efficiency
Core Design Contradiction:
SpeedVSProductivity

Solution Approach 1:

The patent applies parameter changes by introducing a priority determination mechanism that assigns different processing priorities to jobs based on their characteristics (such as number of post-processing steps). This parameter-based differentiation allows the system to maintain fast processing for simple jobs while ensuring complex jobs receive appropriate attention, thereby improving overall workflow efficiency without sacrificing speed.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2416237B1Information processing apparatus, control method therefor, and program
Publication Date: 2019.09.11 CANON KK
  • EP2416237B1 patent drawingFigure 1
  • EP2416237B1 patent drawingFigure 2
  • EP2416237B1 patent drawingFigure 3

AI summary

An information processing apparatus connected to a print apparatus via a network, characterized by comprises: receiving means for receiving a plurality of jobs; determination means for determining a priority level of each of the plurality of jobs in an order in which jobs are sent to the print apparatus, based on information of a post-processing step which corresponds to each of the plurality of jobs and is performed after the plurality of jobs are printed by the print apparatus; and sending means for sending the plurality of jobs to the print apparatus in accordance with the priority levels in which jobs are sent, which are determined by the determination means.