e-35 dual page selection is grey ( cannot be selected )

[Claudio]

Hello:
I have an e-35 that the dual page selection icon is grey and cannot be selected.
I have looked through the copier's menus, the user manual, the service manual and handbook and simulation settings but cannot find where it shows how to turn this feature on.
The only thing I found in the service handbook is on page 1-5 where is shows "Copy Mode" section J and then the settings ( 0= not used, 1= edge erase, 2= dual page, 3= edge erase & dual page ) but it does not explain how to change this setting.
Does anybody know what it is that I need to change to make the Dual Page selection come on?
Thanks in advance.
Claudio

[Claudio]

We made a few calls and found that if mode 08-618 is changed ( same sized originals / mixed sized original ), this will disable those other features such as edge erase and dual page.
Problem solved!

Have a great day
Claudio