From these Screen Caps of the fictitious "Micklethorpe", Martin Underwood
successfully identified
the location as the market town of Knaresborough, about 14 miles west of York.
From a subsequent visit I can report that the cute little chequerboard shop (right),
then at least, housed a wool shop and a candle shop
(and the pub next door did a very reasonable lunch!)
Strictly speaking the print works was the left-hand (candle) shop.
Using all his research Martin put together a webpage "The Outsider - then and now"
for a while, which
featured a street plan of the town and contemporary shots alongside his Screen Caps.
Sadly the page appears to have disappeared into the ether ...