Lexmark MS310 Manual page 34

Lexmark MS31x/41x/510/610 & MX310/410/51x/61x Product Study Guide
Step Function
Once the trailing edge of the scan media reaches the feed sensor, the sensor switches off.
9
Once off, the image acquisition process continues for a predetermined length of time.
When the image acquisition process completes, the trailing edge of the media continues to the
10
reverse point. If the scan job is simplex, the media advances to the exit roller and exits the
ADF.
If the scan job is duplex, however, the feed motor reverses with a swing gear as the trailing
11
edge of the media reaches the reverse point. The swing gear moves the diverter gate to the
down position.
The reversed exit roll pulls the paper back into the ADF. The eject 2 roll moves the media to
12
the duplex sensor.
second side of the media to be scanned and the exit roll stops rotating.
After the media actuates the duplex sensor, the eject 2 roll moves the media to the paper feed
13
1 roll and the feed sensor. Like the first pass of the media, the image acquisition process is
repeated for the second side of the media.
When the trailing edge of the media reaches the reverse point the second time, the swing gear
moves the diverter gate to the down position and exit roll reverses. The paper moves back into
the ADF unit for a third time. The paper passes through the paper path, but no imaging
14
occurs. This pass turns the paper over to the original side up. On the third pass of the media
trailing edge over the reverse point, the eject two roller does not reverse and the paper passes
out of the ADF.
For Training Purposes Only
Once the duplex sensor actuates, it signals the control board that this is the
20
Rev 1.3
4/21/2014