I scan documents and artwork up to tabloid format with an Epson GT-15000 Professional Scanner. This powerful scanner offers 600 x 1,200 dpi resolution and 48-bit color for incredible detail on scans up to 11.7 by 17 inches.
I charge $10/15 minutes. The highest the definition, the slower it will scan. The color and light adjustment are made before scanning for higher color definition.