Minolta Magicolor 3100 Series Service Manual page 85

FIP-P4 Vertical Band Deletions
∆There are areas of the image that are extremely light or are missing entirely.
These missing areas form wide bands that run vertically along the page in the paper feeding direction.
M Initial check M
Incorrect parts, improper installation, damage, deformation, dirt, foreign substance attached, etc.
∇ Major parts to be checked ∇
Imaging Unit (PHD), FUSER ASSY, Transfer Unit (BTR), ROS ASSY, PWBA HNB MCU, SUB HVPS
Item
Faulty Imaging Unit (PHD)
1 Is the image quality improved if Imaging Unit (PHD) is
replaced?
Faulty ROS ASSY
2
Is the image quality improved if ROS ASSY is replaced?
Faulty FUSER ASSY
3 Check the HEAT ROLL and NIP BELT for evidence of
damage, dirt, or foreign substances.
Faulty Transfer Unit (BTR)
4 Is the image quality improved if Transfer Unit (BTR) is
replaced?
Condition / initial check
Check
Chapter 1 Troubleshooting
Remedy
Replace the Imaging Unit (PHD)
Replace the ROS ASSY
Replace the FUSER ASSY
Replace the Transfer Unit (BTR)
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