TA Triumph-Adler P-C2660 MFP - Manual (Page 360)

Default Setting (System Menu)
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2 Press the OK key. The Printer menu appears.
3 Press the  or  key to select [Override A4/LTR].
4 Press the OK key. Override A4/LTR appears.
5 Press the  or  key to select [Off] or [On].
6 Press the OK key. Completed. is displayed and the
screen returns to the Printer menu.
Duplex
Select binding orientation for duplex mode. The table below shows the available settings.
Use the procedure below to select a duplex setting.
1 In the Sys. Menu/Count. menu, press the  or 
key to select [Printer].
Printer: a b
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2 Color Setting
3 EcoPrint
[ Exit ]
1 Emulation Set.
Override A4/LTR: a b
1 Off
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2 *On
Item Description Finish
Off No duplex mode
Bind Long
Edge Longer edge
bound
Bind Short
Edge Shorter edge
bound
Sys. Menu/Count.:a b
7 Copy
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9 Send
[ Exit ]
8 Printer