Sharp MX-3610N User Manual page 215

This is used to activate Saddle Stitch automatically when Pamphlet Copy is enabled
when a saddle finisher is installed. To make pamphlet copies without stapling when
the [Automatic Saddle Stitch] option is ON, tap the [Staple Sort] key. Then, select
[Pamphlet Copy] and tap the [OFF] key on the saddle stitch screen.
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