HP M1212NF CE841A#BGJ, FESSIONAL M1130 Repetitive defects ruler, 27 mm 29 mm 39 mm 56 mm 75 mm

Repetitive defects ruler

If defects repeat at regular intervals on the page, use this ruler to identify the cause of the defect. Place the top of the ruler at the first defect. The marking that is beside the next occurrence of the defect indicates which component needs to be replaced.

If the defect correlates with the print engine or the fuser, the product might require service. Contact HP Customer Care.

Figure 12-1Repetitive defects ruler

0 mm

27 mm

29 mm

39 mm

56 mm

75 mm

Distance between defects	Product components that cause the defect
27 mm	Print engine
29 mm	Print engine
39 mm	Print engine
56 mm	Fuser
75 mm	Print cartridge

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