Konica Minolta Magicolor 3300 Service Manual page 105

P7 "Background"
Background
∆ The entire page or a part of paper is dirty (too light gray) with toner.
Initial check
Parts of different specifications, improper installation, damage, deformation, dirt, foreign substance
attached, etc.
∇ Major parts to be checked ∇
PHD ASSY, FUSER ASSY, BTR ASSY, ROS ASSY, PWBA MCU HBN, S-HVPS
Item
Faulty PHD ASSY
1
Is the image quality improved if PHD ASSY 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 BTR ASSY
4
Is the image quality improved if BTR ASSY is replaced?
Faulty PWBA MCU HBN
5 Is the image quality improved if PWBA MCU HBN is
replaced?
Condition / initial check
Check
Chapter 1 Troubleshooting
Remedy
Replace the PHD ASSY
Replace the ROS ASSY
Replace the FUSER ASSY
Replace the BTR ASSY
Replace the PWBA MCU HBN
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