The Prince used the press to produce a copy of an extract of a poem by Alexander Pope called The Dunciad.
He visited the library and its workshop following a service at St Brides church, where he gave an address.
The service was held to celebrate the 300th anniversary of daily newspaper production in the UK.
Have your say in the Printweek Poll
Related stories
Latest comments
"Very insightful Stern.
My analysis?
Squeaky bum time!"
"But in April there was an article with the Headline "Landa boosts top team as it scales up to meet market demand", where they said they came out of last year’s Drupa with a burgeoning order..."
"Yep. Tracked is king."
Up next...

Print services required
Trio of new tenders up for grabs

Greater automation and ease-of-use
Konica Minolta enhances AccurioPress C7100 series

Energy savings and wider gamut
Wilmot-Budgen takes first LED Onset

Weekly one million mark