Ricoh HL-F1 Field Service Manual page 242

6. Troubleshooting
Location of Grounding Contacts
Drum unit
6
[A]: Toner cartridge
[B]: Drum unit
(1): Exposure drum
(2): Wire cleaner
(3): Charge
240
(4): Developer roller
(5): Grid
(6): Transfer roller
(7): Cleaner