Gestetner 10502 Copy Reference Manual page 145

Copying
B
Press the [Margin Adj.] key.
2
C
Set a front margin for a front page. Press the [ ] and [ ] keys when setting
the left and right margins, and the [ ] and [ ] keys when setting the top and
bottom margins.
Note
You can adjust the width in the range of 0–30mm, 0"–1.2".
D
Set a back margin the back page. Press the [ ] and [ ] keys when setting
the left and right margins, and the [ ] and [ ] keys when setting the top and
bottom margins.
Note
You can specify the back margin only when the Duplex or the Two Sided
copy with Combine is selected.
If you do not set a back margin, go to step E.
E
Set your originals then press the {Start} key.
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