Oki ES9160, Maintenance Manual

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ES9160 MFP / ES9170 MFP © 2012 OKI DATA CORPORATION All rights reserved
OUTLINE OF THE MACHINE
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3.15.3 Description of Operations
The back side printing (recording data of the back side of paper) is performed first by selecting duplex
printing mode and pressing the [START] button.
When the paper passed the reverse sensor, the reverse gate solenoid switches the reverse gate, and
the reverse roller switchbacks to transport the paper into the ADU.
The switchbacked paper is transported with acceleration. The transportation decelerates in front of the
ADU exit sensor. The front side printing (recording data of the front side of paper) is performed at the
registration section. The paper passes through the exit gate again and is transported to the inner tray to
complete duplex printing.
There are three methods of judging a paper jam: (1) whether the ADU entrance sensor is turned ON or
not in a specified period of time after the switchback to the ADU started (E510). (2) whether the ADU
exit sensor is turned ON or not in a specified period of time after the ADU entrance sensor is turned ON
(E520). (3) whether the registration sensor is turned ON or not in a specified period of time after the
paper feeding from the ADU to the equipment (E110).
If the ADU is opened during duplex printing, the ADU motor and ADU clutch are stopped, namely, ADU
open jam occurs (E430).
The equipment is never to be stopped during printing by interruption in any case except paper jam or
service call.
The operation of the duplex printing differs depending on the size of the paper; single-paper circulation
and alternateness circulation. The figures in the following pages show the circulating operations during
duplex copying. The numbers in the figures indicate the page numbers.