8.4 Sheet Is Completely Blank
3. Video control board
4. HVPSA
5. DC control board
8.5 Sheet Is All Black
Inspect the connectors of the HVPSA and EP-L cartridge for dirt
or damage. Swap the following FRUs to correct the problem:
1. EP-L cartridge
2. HVPSA
3. DC control board
8.6 In-line Vertical Spots
Inspect the high-voltage HVPSA connectors and the ground
connections of the static eliminator. Do the following:
1. Clean the static charge eliminator.
2. Replace the transfer charging roller.
3. Replace the HVPSA.
8.7 Toner on Reverse Side of Paper
Toner, spilled into the paper path, gets on the reverse side of the
sheet. Completely clean the following paper path components and
find the toner leak.
1. Clean the fixing unit rollers using the procedure shown in
Section 4.4. Perform two or three cleaning passes if necessary.
Replace the fixing unit if the rollers do not clean.
2. Thoroughly vacuum and clean the entire paper path,
especially the following components:
• All paper path guides
• Transfer charging roller
• Cassette or tray pickup roller
8–6 Image Defects FIPS