HP 7510 - Manual (Page 22)

c. Specify number of copies.
Touch Copy on Home screen.
The Copy preview appears.
Touch the screen to set the number of copies.
d. Start copy.
Touch B&W or Color.
2-sided copy
a. Load paper.
Load full-size paper in the main input tray.
b. Load original.
Lift lid on product.
Load original print side down on right front corner of glass.
Close lid.
Copy text or mixed documents 21