Toshiba MULTIFUNCTIONAL DIGITAL COLOR SYSTEMS 6520C - Manual (Page 88)

3 BASIC COPY MODES
86 Duplex Copying
3 Press [2-SIDED] on the touch panel.
4 Select the desired mode.
[1 -> 2 DUPLEX]: 1-sided original to 2-sided copy
[2 -> 2 DUPLEX]: 2-sided original to 2- sided copy
5 Select other copy modes as required, and then press the [START] button on the control
panel.
When placing the original on the original glass, follow steps 6 and 7 on P.33 “Basic copying procedure”.