HP 8000dn Service Manual - Page 432
Repetitive Defect Ruler, of the defect to determine the roller in question. When you are certain
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Repetitive Defect Ruler Repetitive print defects are usually associated with a specific roller within the printer or the toner cartridge. Use figure 7-10 to isolate the cause of repetitive print defects. Align the first occurrence of the defect with the top of the "ruler" and measure to the next occurrence of the defect to determine the roller in question. When you are certain that your defect pattern matches the pattern of the ruler, replace the indicated roller. Figure 7-10 Repetitive Defect Ruler 408 Chapter 7 Troubleshooting EN
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408
Chapter 7 Troubleshooting
EN
Repetitive Defect Ruler
Repetitive print defects are usually associated with a specific roller
within the printer or the toner cartridge. Use figure 7-10 to isolate the
cause of repetitive print defects. Align the first occurrence of the
defect with the top of the “ruler” and measure to the next occurrence
of the defect to determine the roller in question. When you are certain
that your defect pattern matches the pattern of the ruler, replace the
indicated roller.
Figure 7-10
Repetitive Defect Ruler