(2) Repetitive defects gauge
First occurrence of defect
[24.99 mm/1"] Upper registration roller
[37.68 mm/1
"] Lower registration roller
1/2
[45.216 mm/1
"] Transfer roller
3/4
[62.8 mm/2
"] Developing roller (developing unit)
1/2
[73.162 mm/2
"] Heat roller (fuser unit)
7/8
[78.5 mm/3
"] Press roller (fuser unit)
1/16
[94 mm/3
"] Drum (drum unit)
11/16
2JN
2-4-3