I just imported an ALPS MD5000 printer from the USA and stupidly forgot
to plug it in to my 240110 transformer before plugging it in ...BANG
went the fuse and at least one component on the PSU board....(you get
used to everything being auto-sensing these days!).

The printer was new, but at least 5 years old (these printers are
unique in that they are capable opf printing white thanks to a unique
ribbon cartridge system), they are hard to come by and cost me quite a
bit to get here..trouble is that options for 'professional' repair here
are very limited (alps only service in the USA), which means that I am
going to have to fix it myself (I can solder and have done some
electronics in my time - mainly kit build stuff)..

Looking at the board, it seems (from visual inspection at least) that
in addition to the fuse, the next component in line (which is what I
can't identify) has also blown (I am hoping that this will be it, but
one thing at at time!).

The part is a mystery though. My guess is that it is a thermal fuse or
Transorb (not sure whether these work with AC at all). Markings on it
are 7C241 49P (with the symbol 'SA' in a circle). I have tried all the
obvious combinations (googled endlessly), but no luck.

Can anyone shed any light? As I say it is directly inline after the 4A
fuse and the marking on the board looks like a resistor, but with one
set less Squiggles (like a Z on its side). The board is marked 'Z1' for
the component (all other components are marked as ususal Cn for Caps,
Rn for resistors etc).

I have posted some images of these here :

http://users.fcpl.com/~ben/printerpsu/board.jpg

http://users.fcpl.com/~ben/printerpsu/board_back.jpg

http://users.fcpl.com/~ben/printerps..._component.jpg

Any help would be gratefully received.