Konica Minolta Magicolor 3300 Service Manual page 101

P3 "Black Prints"
∆ The entire image area is black.
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
Item
Faulty transfer
1 Is the image quality improved if the laser beam exit
window of ROS ASSY is shielded with a sheet?
Faulty ROS ASSY
2
Is the image quality improved if ROS ASSY is replaced?
Faulty PHD ASSY
3
Is the image quality improved if PHD ASSY is replaced?
Condition / initial check
Check
Chapter 1 Troubleshooting
Remedy
Replace the PWBA MCU HBN
Replace the ROS ASSY
Replace the PHD ASSY
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