Canon LBP-3260, Service Manual

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Action: Replace the cartridge.
3. The high-voltage power supply PCB is defective.
Action: Replace the high-voltage power supply PCB.
4. The DC controller PCB is defective.
Action: Replace the DC controller PCB.
II-5. Dots in vertical line
<Possible causes>
1. Static charge eliminator is dirty.
Action: Clean the eliminator with brush.
2. The static charge eliminator contact of the high-voltage power supply is not making a good
connection with the static charge eliminator contact.
Action: If the contacts are dirty, clean them. If the problem continues after cleaning, or
parts are deformed or damaged, replace them.
3. The transfer charging roller is deformed or has deteriorated.
Action: Replace the transfer charging roller.
4. The high-voltage power supply PCB is defective.
Action: Replace the high-voltage power supply PCB.
5. The DC controller PCB is defective.
Action: Replace the DC controller PCB.
II-6. Dirt on back of paper
<Possible causes>
1. Dirty paper
Action: Replace the paper with new one. Advise the customer on how to store paper.
2. Periodical stain (pick-up roller, transfer charging roller, lower fixing roller)
Action: Referring to Table 4-2-1 on page 4-11, identify the dirty roller(s) and clean the dirty
areas. If the dirt cannot be removed, replace the dirty roller(s).
3. The feed guide or fixing entry guide is dirty.
Action: Clean dirty parts.
II-7. Vertical lines
<Possible causes>
1. Circumferential scars on the photosensitive drum
Action: Replace the cartridge
2. The upper fixing roller is scratched.
Action: Remove the cause of the damage and replace the roller.
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CHAPTER 4