[2]Transfer/feed guide (clean; dry wiping)
[3]Fixing inlet guide (clean; dry wiping; alcohol)
[4]Photosensitive drum butting spacer (clean; dry wiping)
[5]Dust-blocking glass (clean; dry wiping or with alcohol)
[6]Waste toner collection case (check)
[7]Leakage breaker (check)
[8]Film bias static eliminator (clean)