I want to use my scanner Mustek Bearpaw 1200 CU plus as a photocopier. I would prefer to simply press the button "copy" on its top at a corner, and get the printer (Epson stylus photo 700) to print out the copy, rather than utilise the computer Bearpaw programme which always takes me a long time to operate. I only want to copy an A4 letter.
When I pres the button "copy" nothing happens.
How can I make the button(s) work?

Office Equipment & Supplies - Mustek - BearPaw 1200CU Plus