NFC and USB Board Vertical Stacking in Image Formers

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Solution Overview

Problem

The placement of NFC and USB boards in image forming apparatuses at the front portion leads to limited space, causing electromagnetic interference that degrades communication performance.

Innovation Solution

The NFC board is positioned closer to one side surface, and the USB board is placed at a different level, ensuring they do not overlap when viewed normally, allowing side-by-side placement in the casing, thus preventing electromagnetic interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the NFC board and USB board are disposed at the front portion of the image forming apparatus to ensure user convenience, then ease of operation is improved, but electromagnetic interference between the boards occurs causing communication performance degradation

Engineering Contradiction:
Improveuser convenienceVSAvoidcommunication performance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies dimensional separation by positioning the NFC board and USB board at different levels (heights) within the casing. The NFC board is disposed at a first level while the USB board is disposed at a second level different from the first level, both within the front portion of the casing. This vertical separation in the third dimension allows both boards to be accessible at the front for user convenience while preventing electromagnetic interference through spatial separation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If the NFC board and USB board are disposed side by side in a limited area, then device complexity is reduced, but electromagnetic interference occurs between the boards

Engineering Contradiction:
Improveboard arrangement complexityVSAvoidelectromagnetic interference
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

The patent resolves the interference issue by utilizing vertical space within the limited front area. Instead of only horizontal arrangement, the NFC board and USB board are positioned at different heights (first level and second level respectively) within the same front region. This maintains compact device design while eliminating electromagnetic interference through three-dimensional spatial separation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent nests both the NFC board and USB board within the front portion of the casing, utilizing vertical stacking similar to nested dolls. The boards are arranged one above the other (at different levels) within the confined front space, maximizing space utilization while preventing interference through layered positioning.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If the NFC board is disposed at the front portion for better accessibility, then ease of operation is improved, but space for other components is reduced

Engineering Contradiction:
ImproveNFC board accessibilityVSAvoidavailable space in front portion
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The patent utilizes the vertical dimension within the front portion to accommodate the NFC board. By positioning the NFC board at a specific level in the vertical direction rather than only horizontal placement, the design maintains accessibility at the front while efficiently utilizing three-dimensional space to preserve area for other components.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11025786B2Image forming apparatus having an NFC board and USB board positioned therein
Publication Date: 2021.06.01 BROTHER KOGYO KK
  • US11025786B2 patent drawing
  • US11025786B2 patent drawing
  • US11025786B2 patent drawing

AI summary

An image forming apparatus includes: a casing including a first side surface, and a second side surface opposing the first side surface in the first direction, and an NFC board and a USB board that are disposed in the casing. The NFC board has a first board surface. The USB board has a second board surface on which a USB port is mounted. The NFC board and The USB board that are disposed in the casing at a position closer to the first side surface in the first direction than the second side surface. The second board surface is located at a level different from the first board surface in the direction normal to the first board surface. The USB board does not overlap with the NFC board when viewed in the direction normal to the first board surface.