Gestetner A193 Service Manual page 309

6-903 Original Non-waiting Start
If SP6-903 is '0', the next original is not fed until the trailing edge of the
current original has passed the registration sensor. This leaves a gap of
about 72 mm between originals.
If SP6-903 is '1', the next original is fed earlier. The gap between originals
depends on the setting of SP6-904.
6-904 Original Scanning Interval
This SP mode is effective only if SP6-903 is '1'
Use it to adjust the distance between the trailing edge of the original and
the leading edge of the next original.
6-910
ADF/Printer Free Run
After starting the Free Run ( 1 + # + # ), the ADF automatically cycles
without exposing when an original is placed on the original table. Jams
are detected.
SM
REPLACEMENT AND ADJUSTMENT
7-27 (A628)