The Argos blog published this interesting little list of 10 unusual printing facts. The summary is below, but you can read the full article here.
1. Smallest printed book: .74 mm x .75 mm
2. Fastest printed postage stamp: it took 1 hour to print a stamp in Schaan, Liechtenstein.
3. Highest initial print run for a fiction book: 12 million for Harry Potter and the Deathly Hallows.
4. Largest Printed Catalog: the Aviall Product and Catalog Book–2,656 pages weighing 7.4 lbs.
5. Oldest Print Publishing House: Cambridge University Press, circa 1537.
6. Oldest Mechanically Printed Book: general consensus is the Gutenberg Bible, but some argue the Chinese beat it by six or seven centuries.
7. Fastest time to print 500 sheets by a color desktop printer: 7 minutes, 18 seconds by an HP Officejet Pro X Series.
8. First to print edible sushi: Chef Homaro Cantu of Moto in Chicago started printing sushi entrees in 2005 using a Canon i560 inkjet printer with edible ink.
9. How many times could a years worth of discarded printer cartridges circle the earth: Over 3 times.
10. How expensive is black printer ink: It is one of the most expensive liquids on earth, costing over $2,700 per gallon.