Ricoh FT6645 Manual page 144

COPIER INSTALLATION
2.3 GUIDANCE ROM, INSTALLATION
(OPTION: EUROPE VERSION ONLY)
1. If necessary, replace the three guidance ROMs on the operation panel
PCB with the optional guidance ROMs as follows:
1) Remove three screws [A].
2) Remove the two screws [B] securing the protective earth wires.
[B]
[A]
3-12
23 April 1993