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Troubleshooting
Phaser 6600 Color Printer 165
User Guide
Symptom Probable Causes Solutions
Spots or lines appear at regular
intervals on the prints.
One or more of the
components in the paper path
is marking the paper.
To determine the cause, measure the
distance between the print defects.
• 75.3 mm (3 in.) - Imaging Unit
• 28.3 mm (1.1 in.) - Imaging Unit
• 31.1 mm (1.2 in.) - Imaging Unit
• 32.3 mm (1.3 in.) - Imaging Unit
• 25.1 mm (1 in.) - Transfer Belt
• 56.5 mm (2.2 in.) - Transfer Roller
• 82.3 mm (3.2 in.) - Fuser
If the repeating defects match one of these
distances, replace that item.