Location-Aware Print Control for Distant Printer Warnings

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Solution Overview

Problem

Existing print control systems allow users to inadvertently select distant printers, leading to potential waste and information disclosure due to operational errors or incorrect printer selection.

Innovation Solution

A print control apparatus and method that includes a selection unit, print control unit, and warning unit to prevent erroneous printing by warning users when selecting distant printers and allowing printing without warning when selecting near printers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If printing can be performed by printers located in different areas, then printing flexibility and accessibility are improved, but the risk of erroneous printer selection and information disclosure increases

Engineering Contradiction:

Improveprinting flexibilityVSAvoiderroneous printer selection risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary identification of the user's current location and determines the area where the terminal device is located before allowing printer selection. This preliminary action establishes a reference framework that enables subsequent warning operations when distant printers are selected, preventing erroneous printing by proactively checking location consistency before the printing operation commences.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system provides feedback to the user when a distant printer is selected by displaying a warning message that notifies the user of the potential erroneous selection. This feedback mechanism allows the user to confirm or cancel the printing operation, creating a closed-loop control system that reduces the risk of harmful errors while maintaining printing flexibility.

Inventive Principle:

Principle #23Feedback

2Reliability

If a warning is displayed when selecting a distant printer, then erroneous printing is prevented, but the printing process complexity increases

Engineering Contradiction:

Improveprinting accuracyVSAvoidprinting process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The warning mechanism is applied selectively based on local conditions: warnings are displayed only when the selected printer is located in a different area from the terminal device, while no warnings are displayed when the printer is in the same area. This localized application of the warning function reduces unnecessary complexity while maintaining reliability where it is most needed.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system applies partial action by implementing warnings only in specific scenarios (distant printer selection) rather than universally for all printing operations. This selective approach prevents over-complication of the printing process while still providing sufficient protection against erroneous printing in the critical cases where location mismatch is most likely to occur.

Inventive Principle:

Principle #16Partial or excessive action

3Loss of substance

If location-based printer selection is enforced, then wasteful printing is reduced, but user convenience and operation ease deteriorate

Engineering Contradiction:

Improveprinting wasteVSAvoiduser convenience

Core Design Contradiction:

Loss of substanceVSEase of operation

Solution Approach 1:

The system takes preliminary anti-action by proactively warning users before they can execute wasteful printing operations. By displaying warnings when distant printers are selected, the system prevents erroneous printing before it occurs, reducing printing waste while still allowing users to proceed if they have legitimate reasons for selecting distant printers.

Inventive Principle:

Principle #9Preliminary anti-action

Solution Approach 2:

Instead of enforcing strict location-based printer selection that would prevent distant printing entirely, the system inverts the approach by allowing distant printer selection but adding warning prompts. This inverted strategy maintains user convenience and flexibility while still reducing wasteful printing through awareness and confirmation, rather than through restrictive enforcement.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS12423038B2Print control apparatus, method for producing printed object, and print control program

Publication Date: 2025.09.23 SEIKO EPSON CORP

AI summary

In a case where a near printer located in the same area as a print control apparatus and a distant printer located in an area different from the print control apparatus co-exist as selectable printers, when a user selects the distant printer to print, the user is warned before the print control unit is caused to print, and when the user selects the near printer to print, the print control unit is caused to print without warning the user.