Service Manual
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Image defect examples ...419 Light print (partial page 419 Light print (entire page 419 Specs ...420 Dropouts ...420 Lines ...421 Gray background 421 Toner smear ...422 Loose toner ...423 Repeating defects 423 Repeating image 424 Misformed characters 424 Page skew ...... mailbox problems ...451 Functional checks ...454 Early boot diagnostic test 454 Engine test ...454 Formatter test ...455 Half self-test ...455 Drum-rotation test ...456 MFP resets ...457 Cold reset ...457 NVRAM initialization ...457 Hard-disk initialization ...458 xii ENWW
Image defect examples ...419 Light print (partial page 419 Light print (entire page 419 Specs ...420 Dropouts ...420 Lines ...421 Gray background 421 Toner smear ...422 Loose toner ...423 Repeating defects 423 Repeating image 424 Misformed characters 424 Page skew ...... mailbox problems ...451 Functional checks ...454 Early boot diagnostic test 454 Engine test ...454 Formatter test ...455 Half self-test ...455 Drum-rotation test ...456 MFP resets ...457 Cold reset ...457 NVRAM initialization ...457 Hard-disk initialization ...458 xii ENWW