Ricoh D197 Service Manual page 254

Anti-Condensation Heater for Trays
11. Attach the heater board [A] ( x3).
12. Connect the harness [A] to CN904 of the PSU and CN920 of the heater board.
13. Clamp the harness which is connected in step 5 ( x6).
D197/D198/D199/D200/D201/D202 2-184 SM