Below are locations on campus for poster printing.
Thompson Library uses standard bond paper. It's self-service and uses BuckID payment. Health Sciences Library has high quality paper (semi-satin) which can be paid for with eRequest, credit card or cash. The HSL pricing and eRequest instructions: https://hsl.osu.edu/dept/medical-visuals/poster-and-large-format-printing
Poster printing locations at Ohio State
Thompson Library (Room 160)
Dimensions: 36" x 48"
Cost: about $1 per square foot
Digital Union at Stillman Hall
Max Dimensions: 36" x 48"
Cost: about $0.80 per square foot
Health Sciences Library Medical Visuals (Suite 410)
Max Dimensions: 42" wide x infinity (only width is fixed)
Cost: $6 per square foot
Rush (same day, when available): $9 per square foot
Payment: Cash, Credit card, Personal Checks, eRequest
UniPrint at Barnes and Noble, The Ohio State University Bookstore near Gateway
Max Dimensions: 44" x infinity (only width is fixed)
Cost: $4.50 per square foot
24 hour advance notice
Payment: Cash, Credit card, BuckID, eRequest
Email: uniprint-unionosu [dot] edu