You'll want to use one of the Epson 10000XL or 11000XL scanners. They are located in:
- The Service Bureau
- The Library
- The Printshop
- The Comic Studio
- Classroom 230
- Classroom 430
The Epson 10000XL/11000XL can scan an area up to 12.2" x 17.2" at a max 1600 dpi optical resolution.
Using the Photoshop photo merge capability will help you merge overlapping scanned areas if your image is larger than the scan bed.
Alternately, the SB staff can scan flexible artwork/documents up to 36" wide on the OCE printer/scanner for a $2/scan fee. Color or BW up to 600dpi.