Very occasionally the cartridge may drop flush into the
camera at the sprung end
only but not at the other end,
thus
blocking the sliding cover. This means that
by
chance the
key
in
the cartridge core exactly hit the
transport shaft prongs instead of
sliding past them. To
remedy this (not a
malfunction), lift out the cartridge
again and
slightly turn the three-pronged shaft with your
finger tip.
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