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黑白测试
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黑白打印机测试页
专业打印机诊断
1. 灰度渐变测试
应从白色到黑色平滑过渡，无条纹
2. 文字清晰度测试
24pt Bold: The quick brown fox jumps
18pt Regular: The quick brown fox jumps over the lazy dog
14pt Regular: The quick brown fox jumps over the lazy dog. 0123456789
12pt Regular: The quick brown fox jumps over the lazy dog. 0123456789 !@#$%^&*()
10pt Regular: The quick brown fox jumps over the lazy dog. 0123456789 ABCDEFGHIJKLMNOPQRSTUVWXYZ
8pt Regular: The quick brown fox jumps over the lazy dog. 0123456789 abcdefghijklmnopqrstuvwxyz
6pt Regular: The quick brown fox jumps over the lazy dog. 0123456789
3. 线条粗细测试
0.5pt:
1pt:
2pt:
4pt:
8pt:
4. 图案与对齐测试
网格：所有方块大小一致
棋盘格：边缘清晰
5. 形状渲染测试
✓ 若所有元素打印清晰，说明打印机工作正常打印时间： 6/19/2026