Oki ES3640E - Manual (Page 206)

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B-206 TTemplates
ES3640e MFP EFI Job Management Guide - 206
The 4-Up Z-Fold layout is used only for jobs that have eight
pages. If the job contains more or less than eight pages, an error
message appears. The pages will be ordered as follows:
The 4-Up Z-Fold is usually folded as shown in the following
illustration.
2 3 6 7
Sheet 1,
front side
Sheet 1,
back side
4 8 5 1