remove the two screws from the holes that held the hinges of the lid.turn the scanner back, and remove the lid by lifting it straight up.turn the scanner upside down (hold the lid well while doing this), and remove the two screws below the front panel.swith the transport lock switch to the "locked" position, both at the back of the scanner, and under the lid (!).disconnect the power cable, the USB cable, and the cable going from the lid to the base at the back of the scanner.It is caused by the fact that on one side the glass plate is supported by three very flimsy plastic tabs, which bend downwards when some pressure is applied to the plate (as from a heavy book). When you hear this, switch the scanner off immediately.Įven worse, from that moment on you may never be able to scan again without this problem occurring.
When scanning a heavy book, you may get the following: the scan head stops, and a terrible grinding ratchet sound is heard from the scanner.
A clear advantage of this scanner was the high quality high res scanning capability, a clear drawback the poor build quality. Sane-find-scanner still reports it, but any other software says there's no scanner attached. Update: after about 8 years of service, my 4490 did one more scan of some 8mm film, and then decided to call it quits :-( Unless there's good reason not to, for the simple development of black & white film at home, the expense is relatively minimal, the process fairly simple and the results far more controllable and predictable.Fixing the Epson Perfection 4490 scanner ratchet noise Again, carefully monitored home processing should help isolate the issues.Įverything could possibly also be explained by out-of-date or badly stored film! The beach scene looks more like a mechanical issue, possibly a sticky or dirty film guide or roller in the camera, something faulty in the lab equipment, (this would depend on how automated the lab is) or clumsy wiping down when the film comes out of the wash.
The beached boat does look like a light leak, this could be before the film is loaded, whilst in the camera, when unloaded or in the lab … very difficult to nail down the cause without loading/unloading the camera in a changing bag and then processing the film yourself. the length of the negative, but also run "top to bottom" in the landscape-mode beached boat scene, which would be the width of the negative! There's certainly something weird going on, assuming the whole neg is shown here, 'cos the "streaks" appear to run "top to bottom" in the portrait-mode beach scene, ie. Do these images all come from the same roll of film?Īny light leaks will (almost) certainly be visible in the negative margins, outside of the image area.
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