User Guide

Repetitive image defect ruler
Use the repetitive image-defect ruler to help solve image quality problems. Place the top line on the
ruler next to the first occurrence of the defect on the page. Find the mark that points to the next instance
of the defect to identify the component that is causing the defect.
First occurrence of print defect (0.00 inches)
Transfer roller 46.3 mm (1.82 inches)
Print cartridge 37.7 mm (1.48 inches)
Print cartridge 30.8 mm (1.21 inches)
Paper pick-up assembly 55.2 mm (2.17 inches)
Fuser (Fixing assembly) 56.5 mm (2.22 inches)
Fuser (Fixing assembly) 41.0 mm (1.61 inches)
Print cartridge 76.3 mm (3.00 inches)
Figure 7-1 Repetitive image defect ruler
NOTE The repetitive image defect ruler is for reference only and may not display or print to
exact scale. Use a measuring device to determine the spacing between repeating image defects.
130 Chapter 7 Troubleshooting ENWW