Print Preview Control for Automatic Reprinting of Unprinted Pages

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Solution Overview

Problem

Existing printing technologies require complex user operations to reprint pages that were not printed due to errors, making the process cumbersome and user-unfriendly.

Innovation Solution

A control method for an information processing apparatus that identifies unprinted page data, marks one page of a plurality of pages in document data, and displays a preview image of the unprinted page data in an automatically selected state, simplifying the reprinting process by highlighting the necessary pages for reprinting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the user designates the range of reprinting manually, then the reprinting function can be performed, but the operations become complicated

Engineering Contradiction:
Improvereprinting operationVSAvoidoperation complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system automatically identifies and designates the pages that need reprinting by detecting which pages were not printed due to suspension, eliminating the need for manual user designation. The control unit automatically sets the reprint range based on the suspension detection result, making the system serve itself rather than requiring complex user operations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary detection of unprinted pages before the reprinting process begins. By detecting the suspension state and identifying unprinted pages in advance, the system prepares the reprint range automatically, so when the user initiates reprinting, the correct pages are already designated without requiring manual intervention.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If all pages are reprinted after suspension, then no page selection is needed, but printed sheets are wasted

Engineering Contradiction:
Improvereprinting operationVSAvoidprinted sheets
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The system automatically identifies which pages were not printed due to suspension and designates only those pages for reprinting. This self-service approach prevents wastage by precisely targeting only the unprinted pages rather than reprinting all pages, while still maintaining ease of operation for the user.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The reprinting function applies different treatment to different pages: pages that were successfully printed are excluded from reprinting, while only the unprinted pages are designated for reprinting. This localized approach ensures that reprinting operations are applied only where necessary, preventing waste of printed sheets.

Inventive Principle:
Principle #3Local quality

3Measurement precision

If the user manually identifies unprinted pages, then accurate reprinting can be achieved, but the process becomes time-consuming

Engineering Contradiction:
Improveunprinted page identificationVSAvoidpage identification time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The control unit automatically detects which pages were not printed by monitoring the print processing suspension state, eliminating the need for manual identification by the user. The system self-identifies the unprinted pages based on its internal state information, achieving both accuracy and time efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses feedback from the print processing status to automatically identify unprinted pages. By monitoring whether print processing was suspended and which pages were affected, the system obtains accurate information about unprinted pages without requiring user intervention, thus achieving both precision and speed.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11983447B2Control method of information processing apparatus, information processing apparatus, and storage medium
Publication Date: 2024.05.14 CANON KK
  • US11983447B2 patent drawing
  • US11983447B2 patent drawing
  • US11983447B2 patent drawing

AI summary

A control method of an information processing apparatus identifies remaining page data, among a plurality of page data to be printed, being not printed due to suspension of print processing, and displays a preview image of the identified remaining page data as a print target without a user selecting the remaining page data.