Question about Canon CanoScan 8400F Film Scanner

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Twain Error I get a Twain Data transfer Error when trying to scan with my Canon 8400F Error code: 2,178,0 A follow on from yesterday's post. I set up a Win98 machine and it gave the same error. So, given that the error is consistent across the original XP Pro machine, a fresh XP Pro installation and a Win98 installation (all on different machines) I can conclude that it is very unlikely to be a driver problem or a Microsoft patch issue. That only leaves a hardware failure (although the diagnostics still say it's OK). It looks like I'll have to pay money to have the local agents check it out - unless I can find someone local who has a working one who will let me plug my scanner into their computer. I'll update this post if I find out any more.

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  • James_Canbra Jan 08, 2009

    We took the scanner to the local Canon agent. We explained that we'd
    also tried it on a fresh installation of XP Pro and on Win98, so he
    agreed it was very unlikely to be a driver issue. He had not heard of
    the problem, and could not repair it at his shop.

    We rang Canon Australia. They also hadn't heard of the problem but
    said it might be repairable and, although we couldn't get a straight
    answer, it seemed highly likely that the repair would cost around the
    same as buying an 8800F (the new model).

    Conclusion: We may as well buy a new one. Mutter, Grumble. Too bad we missed all that valuable scanning time over Christmas.

    Good luck to those of you with the same problem. Keep trying to find a solution! If anyone finds one, let me know. I'd like to resurrect the 8400F. It's a great scanner when it works.

  • James_Canbra Jan 08, 2009

    I meant to add this 'cut-and-paste' from the Canon USA Site. Check back at their site - Canon may update the details if they figure out more possible causes.

    ERROR: Cannot scan for these reasons:...Code : 2,178,0


    Disconnect data cable and power cord to reset the device


    Removing the Protective Sheet for film scanning (8400F, 9950F)


    The CanoScan 8400F may require repair
    The link is Canon Support Link. Search for 2,178,0

  • James_Canbra Jan 16, 2009

    Someone else on FixYa had a good suggestion, but for a different scanner. They tried VueScan which is scanning software with its own drivers.

    It didn't work for me so I guess it really must be a fault with the scanner, not with the Canon Twain drivers.

    Anyway, try it. It might fix your problems. VueScan is available from here.

    You don't need to buy VueScan unless you're happy with it. You can trial it, but scanned images have some sort of watermark on them - which won't matter really, because if you can see the watermark, your scanner must be working with their drivers :)


  • James_Canbra Jan 27, 2009

    Thanks Paris.

    All they suggest is removing the protective sheet for film scanning, which was one of the steps I noted on Jan 8th.

    If anyone is trying it, here's a 'cut and paste' from the link Paris posted.

    Issue: ERROR: Cannot scan for these reasons:...Code : 2,178,0

    Solution: Removing the Protective Sheet for film scanning (8800F)

    Removing the Protective Sheet for film scanning (8800F)
    To remove the protective sheet from the document stage cover, push down the lever at the top of the protect sheet (1) and pull it (2) to remove.

    BTW. We gave up on getting the 8400F working and bought a n Epson V500. We didn't buy another Canon because of this error, which was bad, but it was also not a good sign when the diagnostics said there wasn't any problem. They're a company who produce good hardware, but they obviously haven't got their software as integrated as it should be.


  • James_Canbra Apr 03, 2009

    Thanks Wireguy.

    I tested the cable for continuity, and it's fine. However, it encouraged me to open up the lid and take a look inside. There was my problem - the flat flexible cable inside the lid had a tear on it at the point where the light is fully extended on the rail.
    I guess I could solder it, but it's at a bad place on the cable and likely to break at the solder joints.

    I'm trying to find a replacement cable. It should be easy to replace. The part number on the cable is:
    Sumitomo-g awm 2896 80c vw-1 -F-

    I've checked out the Sumitomo web site in the USA, but I'm no wiser as to what all the markings mean. It's 6 pins, so that might be what the -F- means, and it's probably 80 degree C rated like the rest of their flexible cables. It's 450mm long, or 18 inches, approximately. There's nothing obvious in the part number to indicate that.

    If I find a supplier, I'll post it.

    BTW - FAU is Film Adapter Unit.:)

  • James_Canbra Apr 17, 2009

    Here's a link to the spec sheet on the Sumotomo site in Japan.
    I'm looking for a 460mm Flat Flexible Cable (FFC).

    I've seen two prices on the net, $US75 new (whoa!) and $US25 refurbished. They're often sold as another part number which is on my desk here somewhere. I'll update this posting when I find it.

    Sumitomo Austalia are no help. They don't distribute Sumitomo cables, just the heavy industrial stuff. Sumitomo Japan haven't replied to my email.

    They're distributed in the USA by JUDD Wire Inc. Anyone feel like contacting them? Go on, you know you want to do it!

  • James_Canbra Apr 17, 2009

    Found it. Here's a link to the alanComputech site where it's $25 for a Flexible 6Pin L460mm W7mm Flat Cable FFC-6P460-7. There are no guarantees this is correct, but it looks good from the description There's only one in stock, but you can find other sites. Just search for the part number and try removing the dashes as an option.

    Here's another suggestion. This sort of cable is used in lots of scanners. Check your local garage sales for scanners, look through the glass platten and check out the cable they use. If it's the right length but too many strands you could always peel some off.

  • James_Canbra Dec 21, 2009

    I've gone as far as I can with this one. I bought another 8400F so I could try to track down the problem. I switched the Film Adapter Unit and its cable from the working scanner to the one with the fault. The problem still happened with the original scanner, so it cannot be just the FAU or the cable. It has to be something in the body of the scanner.

    I also opened the old scanner and greased the rail that the scan unit runs along. That had fixed a problem for a high end Canon scanner over the weekend. That didn't help either.

    So, I've tried just about everything. I've checked the wiring in the FAU, I've tried swapping bits from a working machine, I've tried different drivers and operating systems. I think I can finally say that I can't fix it. It hurt to say that.

    Canberra, Australia



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You will most likely find that the FAU (what the hell is FAU?!) cable that connects the lift-up lid to the lower part of the scanner has at least one of the eight wires within it fractured. This cable was made far too rigid to cope with the multiple number of times that you will be opening and closing the lid and it's a poor do from Canon that they allowed this to get through to production. I tried to obtain a replacement cable from the UK Canon service agents but was told, as expected, that it couldn't supply it. If you're a dab hand with small wires and a soldering iron, it's quite possible to make a repair and save a bit more of the world's resources from going in the dustbin and then buying another equally poorly made, expensive piece of ****, from China.

Posted on Mar 28, 2009

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Fix your problem

Posted on Jan 27, 2009


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