| Probable Cause | Solution |
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If Every 5 in. on Printout, Suspect the Drum Cartridge
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Remove the drum cartridge and check for a scratch or nick or pits on the green cylinder. These can be caused by a malfunctioning developer unit. Replace developer unit and/or drum cartridge, if necessary.
|
|
If Every 43/4 in. on Printout, Suspect a Dirty or Worn Fuser Roller or Felt Cleaning Pad
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Remove the felt cleaning pad. Attempt to clean fuser roller with reagent-grade isopropyl alcohol. Allow to dry and then install a new felt cleaning pad. If necessary, replace fuser heat & pressure rollers.
|
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If Every 7/8 in. on Printout, Suspect the Developer Unit
|
Check the developer for a stuck roller (Page 7-51). If problem persists, replace developer unit.
|
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Wavy Patterns: 8 Sets Every 3 Vertical Inches Indicates a Bad LSU
|
Call for service.
|
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Damaged, Dirty, or Contaminated Developer, Drum, or Fuser
|
Perform "Transfer Sequence Fault Isolation Test"(Page
7-39).
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