HP Color LaserJet 4730 HP Color LaserJet 4730mfp - User Guide - Page 333
Repetitive defect ruler, If the defect repeats at 94.0 mm 3.75 inch intervals - color laserjet 4730mfp fuser
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Repetitive defect 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. 1 First occurrence of the defect (the distance from the top of the page to the defect) might vary. 2 Print cartridge 34.3 mm (1.35 inches) 3 Print cartridge or transfer roller (if the defect occurs in only one color, the defective part is the print cartridge; if the defect occurs in all colors, the defective part is the ETB) 37.7 mm (1.48 inches) 4 Print cartridge 42.7 mm (1.68 inches) 5 ETB 75 mm (2.95 inches) 6 Fuser 76.0 mm (2.99 inches) 7 Fuser 81.0 mm (3.19 inches) 8 Print cartridge 94.2 mm (3.71 inches) To identify if the print cartridge is the problem, insert a print cartridge from another HP Color LaserJet 4730mfp series, if one is available, before ordering a new print cartridge. If the defect repeats at 94.0 mm (3.75 inch) intervals, try replacing the print cartridge before replacing the fuser. ENWW Correcting print quality and copy quality problems 313
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