Repeating defects
Measure the distance between the repeating defects that appear on the page to identify which supply item needs replacement.
Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to 
to navigate through the settings.
Settings
>
Troubleshooting
>
Print Quality Test Pages
. For non-touch-screen printer models, press to navigate through the settings.- Perform the following tests:
- Using the Print Quality Test Pages, measure the distance between the repeating defects on the affected color page.Check if the repeating defects match any of the following measurements:Imaging kit
- 94.20 mm (3.71 in.)
- 29.80 mm (1.17 in.)
- 23.20 mm (0.91 in.)
Developer unit- 43.90 mm (1.73 in.)
- 45.50 mm (1.79 in.)
Transfer module- 37.70 mm (1.48 in.)
- 78.50 mm (3.09 in.)
- 55 mm (2.17 in.)
Fuser- 79.80 mm (3.14 in.)
- 94.30 mm (3.71 in.)
Do the repeating defects match any of the measurements?- Yes:Take note of the distance, and then contact customer support.
- No:Take note of the distance, and then contact customer support.