HP CM3530 HP Color LaserJet CM3530 MFP Series - User Guide - Page 245

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. Figure 14-2 Repetitive defects ruler 0 mm 27 mm 32 mm 44 mm 49 mm 50 mm 66 mm 76 mm 77 mm 78 mm 80 mm 92 mm 105 mm Distance between defects 27 mm 32 mm 44 mm 49 mm 50 mm 66 mm 76 mm 77 mm 78 mm 80 mm 92 mm 105 mm ENWW Product components that cause the defect Print cartridge Print cartridge Print engine Print engine Print engine Print engine Print cartridge Fuser Fuser Print engine Print engine Print engine Correct print quality and copy quality problems 231