That's a pretty ambitious task...
Try photocopying it. If the photocopier can handle the resolution, then you
could photocopy it several times, magnifying it each time, until it's large
enough to be scanned and OCR'd. If that doesn't work, then your idea about
viewing it with the microfiche reader could work. Make sure you use a
high-res (640x480) digital camera. A normal camera would have a higher
resolution, you could take photos of it, then scan and OCR it.
Cheers,
Paul.