Hi there,
I've finally got the ribbons for my LA36, unjammed the pins in the
printhead and it is printing. It's not quite right yet, though...
As a couple of you pointed out, adjusting the tacho on the end of the
carriage drive motor did the trick. It would have been easier if my
sillyscope hadn't expired just as I was about to start, but I got there in
the end.
What I did in the end was determine where the "worst" points were by
listening to the bump as it skipped up and down (the original fault) and
set the pickup position around the middle. Then it took a tiny tweak of
one of the sensor bias pots to take a little tick about half-way up out of
it. Now it's lovely and smooth.
Now, next question. Anyone got a service manual for a Scopex 4D25?
Gordon.