スキャン失敗

別名: read failure decode failure

スキャナーがQRコードを正常にデコードできない状態です。よくある原因には、クワイエットゾーンの不足、コントラスト不足、モジュールサイズの過小、誤り訂正能力を超える損傷、反射、ピント不良などがあります。

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