Dell 3115cn Color Laser Printer - Manual (Page 291)

Print two original images to fit onto one sheet of paper.
To make the Multiple-Up copying:
Load the document(s) face up with top edge in first into the ADF.
OR
Place a single document face down on the document feeder glass.
For details about loading a document, see "
Loading an Original Document ".
1.
Press until >COPY appears, and then press . 2.
Press until Multiple-Up appears. 3.
Press to select the desired setting, and then press . 4.
5.