Handheld Printing Guidance for Accurate Scanning and Line Breaks

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Solution Overview

Problem

Handheld printing apparatuses face challenges in accurately aligning the printing head with the printing medium, leading to difficulties in precise image placement and operability during scanning and line breaks.

Innovation Solution

A printing apparatus equipped with a movement detection unit and a notification system that provides visual cues to guide the user on scanning directions and line breaks, using a display unit to indicate the current state and necessary actions based on the detected position of the printing head.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a handheld printing apparatus is used to print on a printing medium, then flexibility to print in any position is improved, but alignment accuracy between the head unit and printing start position deteriorates

Engineering Contradiction:

Improveflexibility to print in any positionVSAvoidalignment accuracy

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

A marker is introduced as an intermediary element between the printing apparatus and the printing medium. The marker is disposed at a predetermined position on the printing medium and serves as a reference point to enable accurate alignment of the head unit with the printing start position, while still allowing flexible positioning on the medium surface.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the user manually aligns the head unit with the printing start position, then flexibility in printing position is maintained, but printing accuracy deteriorates

Engineering Contradiction:

Improveflexibility in printing positionVSAvoidprinting accuracy

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The marker acts as a visual intermediary that guides the user during manual alignment. By providing a clear reference point on the printing medium, the marker enables users to accurately position the head unit without compromising the flexibility of manual operation.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If no guidance information is provided during scanning and line break operations, then device complexity is reduced, but ease of operation deteriorates

Engineering Contradiction:

Improvesimplicity of control systemVSAvoidease of operation during scanning and line break

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The notification unit provides real-time feedback information to the user during scanning and line break operations. This feedback mechanism guides users through the printing process by displaying appropriate notifications based on the detected position and state, significantly improving ease of operation without requiring complex control mechanisms.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12384146B2Printing system, method of controlling printing system, and storage medium

Publication Date: 2025.08.12 CANON KK

AI summary

In an image processing apparatus according to the present disclosure, a printing system includes a movement detection unit that detects scanning, which is movement in a first direction, and an operation of making a line break, which is movement in a second direction crossing the first direction, of a printing apparatus main body that includes a printing unit that performs printing on a printing medium. The printing system further includes a notification unit that selectively makes first notification that prompts scanning along with printing by the printing unit, second notification that prompts scanning along with no printing by the printing unit, and third notification that prompts the operation of making a line break, in accordance with a detection result of the printing unit.