Print quality troubleshooting tools
Repetitive image-defect ruler
Use a ruler to measure occurrences of repetitive image defects to help solve image quality problems. Place the ruler next to the first occurrence of the defect on the page. Find the distance between identical defects and use the figure below to identify the component that is causing the defect.
NOTE: When printing this defect ruler, verify that any scaling options in the printer driver are disabled.
0 mm
38 mm
43.6mm
50 mm
76 mm
79 mm
95 mm
Distance between defects | Product components that cause the defect |
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38 mm | Print cartridge (primary charging roller) |
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43.6 mm | Print engine (transfer roller) |
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50 mm | Print cartridge (developer roller) |
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76 mm | Fuser (fuser film) |
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79 mm | Fuser (pressure roller) |
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95 mm | Print cartridge (OPC) |
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ENWW | Tools for troubleshooting 173 |