On Sun, 17 Jun 2007 09:52:30 -0700, XmaX wrote:

OK, great. So in other words, I can indeed travel via Z1 with Z234
paper travelcard, yes? I understand that I could be in trouble if
someone catches me, but how can that happen? In DLR, there are
inspectors, but it's all Z23, so it's OK. Buses - no zones, so OK.
Underground - wrong zones, but who checks the tickets apart from the
gates, which wouldn't do anything anyway?

There are random checks by staff, more so in station passageways at
interchanges than on trains, although the latter do happen
occasionally.

I wouldn't recommend chancing it, to be honest. The difference between
the 7-day Z1-4 and 7-day Z2-4 is less than one penalty fare. Also,
with the proliferation of Oyster, if caught by an inspector in Z1 with
a Z2-4 paper Travelcard, the inspector may be minded to believe that
you chose paper over Oyster in order to evade the Z1 fare, which would
lead to prosecution, not penalty fare.