Ricoh D197 Service Manual page 244

Anti-Condensation Heater Type M12
27. Attach the scanner heater [A] ( ×2).
28. Route the harness on the hook which is indicated with the blue circle in the picture
below.
29. Pass the harness out through the hole of the frame.
30. Remove the screw of the cable guide [A].
D197/D198/D199/D200/D201/D202 2-174 SM