Handheld Printer USB Connector Positioning for Image Quality
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Solution Overview
Problem
Handheld printers face issues with image degradation due to the interference of USB cables with the printing process, as the cables often contact incompletely dried ink or hinder the user's ability to hold and operate the device correctly, leading to operational difficulties and image quality issues.
Innovation Solution
The USB connector is strategically positioned on the handheld printer to avoid interference with the user's hand and the printed image, with suitable locations identified on the device's surface to ensure optimal placement, such as the upper back side area on the left side face, lower front side area, and upper back side area, preventing cable contact with the image and maintaining operational ease.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the USB connector is positioned on the handheld printer, then power and image data can be received via cable connection, but the USB cable interferes with the printing process and contacts incompletely dried ink causing image degradation
Solution Approach 1:
The USB connector is positioned on the side face of the handheld printer rather than on the top or bottom surfaces, utilizing the lateral dimension to spatially separate the cable connection area from the printing area. This dimensional repositioning allows the USB cable to be routed away from the printed image, preventing contact with incompletely dried ink and eliminating image degradation while maintaining reliable power and data reception.
2Reliability
If the USB connector is positioned on the handheld printer, then cable connection for power and data is enabled, but the USB cable hinders the user's ability to hold and operate the device correctly
Solution Approach 1:
The USB connector is relocated to the side face of the handheld printer, utilizing the lateral dimension to separate the cable connection point from the user's hand holding area. This spatial repositioning allows users to comfortably hold the device with one hand while the USB cable connects to the side without interfering with grip or operational movements, thereby maintaining reliable cable connection while significantly improving ease of operation.
3Ease of operation
If the USB connector is positioned closer to the first face, then cable connection is easier, but the cable contacts the printed image causing image degradation
Solution Approach 1:
The USB connector is positioned on the side face of the handheld printer, utilizing the lateral dimension to create spatial separation between the cable connection area and the printed image area. This repositioning maintains ease of cable connection while preventing the USB cable from contacting the printed image, thereby eliminating image degradation without sacrificing connection convenience.
Data Source
AI summary
A handheld recording device includes a first face, a second face, a third face pair, a recorder, and a connector. The first face has an opening. The second face is disposed opposite the first face. The third face pair is different from the first face and the second face. One of the third face pair is disposed on one side in a given direction of the second face and configured to be held by a user for recording. The recorder is configured to discharge ink from the opening. The connector is configured to be connected to a cable to receive at least one of power and image data. The connector is disposed at a position closer to the second face than the first face, on another one of the third face pair disposed on another side in the given direction of the second face.