Toshiba e-studio 167 Service Manual page 245

1) Single-paper circulation
With the paper larger than A4/LT size, duplex printing (back-side printing
performed for one sheet at a time as shown below.
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Fig. 14-3
AUTOMATIC DUPLEXING UNIT (ADU) (OPTION: MD-0103)
14 - 7
front-side printing) is
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