Tim Roll-Pickering wrote:

What happens if there are two station, one of which has a machine
which is designed to take only cards

Then it is in full working order if it only accepts cards, although
it's not clear that such machines exist.

They do, although I've only seen them for definite at some big terminals.
However I must admit I don't tend to look too much at ticket machines
these days.

Since I wrote that comment a few months ago my own local station (Forest
Gate) has installed a second, card only ticket machine. This one's a
particularly nightmare to use as the touchscreen appears to be misaligned
and it's common to find the wrong option gets selected so often people give
up and switch to the other machine with a more responsive touchscreen. At
some point someone somewhere will have to split the hair on what constitutes
"full working order" if Joe Public can't work the controls as well as the
TOC technician who gives the machine a clean bill of health.

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