sfbaker69

<p>Sent the scanner to Alex and turns out it had a failed motherboard. Alex replaced it and the scanner is working as good as new again! Thank you to Phil and everyone else for your responses. Wouldn't have been able to do it without you. Just an FYI: after it was repaired I made test scans using both the Windows XP machine with NikonScan 3 and also on my Mac mini using VueScan software. The VueScan software was far better in dust removal and color restoration than NikonScan. After seeing the results I immediately purchased the Pro version of VueScan.</p>

<p>Update: I got my hands on a PC that is a little older(maybe 5 years), reformatted the hard drive, installed Windows XP pro, installed the Nikon Scan disk that came with the scanner(NikonScan 3) and the PC still refused to recognize the scanner. Plugged several different devices into the USB ports(printer, MP3 player) and the "Found New Hardware Wizard" opened each time as expected. I am now 99% sure the problem lies with the scanner itself. Sending the scanner to be fixed, will update with results.</p>

<p>I'll do that immediately, thank you Phil!</p>

<p>Yes, that should work but it does not. I've tried both Silverfast and VueScan to no avail. The problem has to lie between the scanner and the computer. Even though the scanner passes its POST normally, the computer does not recognize it. VueScan recognizes my all-in-one printer and flatbed scanner in the source box without issue but does not see the Nikon. Nikon support tells me that if the scanner passes the POST it is not likely a problem with the scanner. </p>

<p>I've downloaded VueScan and tried connecting with and without a USB hub with no success. Sandy, can you tell me in more detail about this firewire tower/card and why it would be needed if the scanner connects via USB? Thank you.</p>

<p>Thank you Edward but I'm trying to connect to a Mac system.</p>

<p>Wow, very odd that connecting to a USB hub could RESOLVE issues as it usually creates issues but I'll try anything at this point. Thank you Marc, I'll try this when I get a chance and post the results.</p>

<p>Thanks for the responses folks. Sandy, my Coolscan IV ED connects via USB cable but when/if I get it working I'll post the details.</p>

<p>Thank you guys. Will just install VueScan and give it a go. Phil, can you still use the Digital ROC and Digital ICE features when using Vuescan?</p>

<p>I haven't used my Coolscan IV since moving to Windows 7 several years ago. Tried to use it with Silverfast on a windows 10 machine without success. I now have a Mac with OS X. After reading multiple threads here on photo.net I now know to try VueScan instead of SilverFast but I think my problem runs deeper than that. My computer does not recognize the scanner at all. It does not appear in the "printers/scanners" list. When turned on it runs it's normal POST test and the green light comes on steady like it always has. I have tried two different USB cables without success. Has anyone encountered this same problem? Any help would be greatly appreciated.</p>