>No (I haven't got a garage! :-) it's all kept in the
>house.  And I've tried it with paper straight out of a
>newly-opened packet and although it seems to be a tad
>better, it still happens.  I think it may be humidity
>related, since it happens "randomly" but when it's
>happening it happens a lot, at other times hardly at all.

Is the printer one where the paper supply sits in a (near) vertical slot,
waiting for the next sheet to be picked? If so then this creates problems.
Paper left in such a slot gets a bend on it that makes it jam in printers.
Solution is to not store paper in the printer until you need to print. When
finishing off a session remove any paper left, and store it flat. same
problem can arise with bulk paper not stored flat.

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