![](/images/new-backgrounds/1185436/185436281x1.webp)
Repetitive defects gauge
Use the following measurements for checking repetitive occurrences on the printed page. See the
above section for details.
First occurrence of defect
[25 mm] Upper registration roller
[38 mm] Lower registration roller
[50 mm] Transfer roller
[61 mm] Heat roller, Press roller (Fuser unit)
[63 mm] Developing roller (Process unit)
[94 mm] Drum (Process unit)