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<< Click to Display Table of Contents > Optimize Contrast |
  
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<< Click to Display Table of Contents > Optimize Contrast |
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After marking the first bitmap, the contrast (Black Level and White Level) has to be adjusted.
Find a good Laser Time per Area by adjusting the Mark Speed and the Dither Step.
Picture |
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Black Level Effect |
Not dark enough |
Good dark value |
Too dark |
Laser time per area [ms/mm²] |
25.0 |
40.0 |
62.5 |
Mark Speed [mm/s] |
1000 |
790 |
690 |
Distance between dots [mm] [*] |
0.04 |
0.03161 |
0.02760 |
Dither Step [mm] |
0.04 |
0.03161 |
0.02760 |
Solution |
Increase the Laser time per area to 160%, by decreasing the Mark Speed and the Dither Step to 79% of the current values. |
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Decrease the Laser time per area to 64%, by increasing the Mark Speed and the Dither Step to 115% of the current values. |
Table 31: Optimize Contrast by adjusting Mark Speed and Dither Step
[*]: Frequency = 100 kHz
