HP 815MFP - Manual (Page 12)

6 hp designjet 815mfp & scanner 4200
prescan of the original and copying thus requires more time
than with manual size settings.
5. Press OK to return to the Copy tab.
see also
tell me about the copy size on page 73
how do I set the output size? on page 6
how do I set the output size?
1. Press the Copy tab.
2. Press the Output size button to open the Output size menu.
You can use Auto size detection for output size, standard sizes
or custom size presets.
3. Select an output size or use the Tool button to open the
Output size setup dialog.