06/2014
3-18
WC 5022/5024
IDS8 Regular Blank Areas In Process Direction (Spots,
Version 1.0
Image Quality Troubleshooting
IDS8 Regular Blank Areas In Process Direction (Spots,
Streaks, Bands etc.)
Figure 1 Regular Blank Areas In Process Direction (Spots, Streaks, Bands etc.) Defect
Sample (j0ch3225)
Cause
1. 94 mm pitch -> Drum: Scratches or foreign substances
2. 27 mm pitch -> Magnetic Roll: Developing powder stuck on the Magnetic Roll
3. 44 mm pitch -> BCR: Scratches or foreign substances
4. 80 mm pitch -> Heat Roll: Scratches or foreign substances
Action
1. 1,4: Clean or replace the Drum Cartridge (PL 8.1) (REP 8.1.1)/Fusing Unit (PL 7.1) (REP
7.1.1)
2. 2,3: Replace the Drum Cartridge (PL 8.1) (REP 8.1.1)
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