Dell B1165nfw Multifunction Mono Laser Printer - How do I get it to scan multiple pages?

Hi,

I got a new computer.  I have a Dell B1165nfw Multifunction Mono Laser Printer.  It worked fine on my old computer.  Now it will only scan one page now.  I have it hooked up to a Windows 8.1 Dell laptop.   How do I get it to scan multiple pages?

Thanks.