Ricoh D072 Service Manual page 478

ADF Free Run
6009
Duplex Mode
6009 1
Performs an ARDF free run in duplex scanning mode. Press "ON" to start;
press "OFF" to stop.
Simplex Mode
6009 3
Performs an ARDF free run at simplex scanning mode. Press "ON" to start;
press "OFF" to stop.
6910* ADF Shading Time
Adjusts the interval used for the shading processing in the ARDF mode. Light
6910 1 and heat in the room may affect the scanner response. Reduce this setting if
copy quality indicates that the white level is drifting during ARDF copy jobs.
SM Appendix
System Service Mode (Basic: D067/D072)
[0 to 60 / 30 / 1 s/step]
5-169 D067/D068/D069/D072