Oki OKIPAGE24DX Maintenance Manual page 38

(10) Duplex unit
When the Duplex Unit receives an instruction for both-sided printing from the unit, the
separator will be opened by the action of a solenoid within Duplex and the route will be shifted
to the one into the Duplex after one-sided printing of papers, which are fed from the tray, are
completed.
At this time, as the roller (1) rotates in the direction of arrow A, a sheet is retracted in the rear
of the cassette. And then, a given time later after the edge of the sheet passes through the
IN SNS (DUP), the roller will reverse and the roller (1) rotates in the derection of arrow B and
sending out the paper into the Duplex. After that, it passes though the roller (2) and (3), and
is fed again into the unit, given another-sided printing and ejected.
<In retracting paper>
40930701TH DRAFT Vesion
Roller (2)
Roller (3) Front
Sensor
A
Roller (1)
Rear
Sensor
<In sending out paper>
B
Separator
IN SNS
(DUP)
38 /