The scanner is operating but the scans are horrible.
They used to just fine. I had great clear scans. I don't know if upgrading another program corrupted my scanner.
Sometimes they are completely blank, sometimes all I get is a bunch of colored lines. Definitely not usable.
I have contacted Visioneer and everything they told me to do has not helped. They have agreed to send me a replacement scanner if I send them a copy of my receipt but I can't seem to locate it so I am pretty disappointed. I sure hope you can help better than they did.
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Download drivers for your scanner from the page above, don't mind it is not the same model - it will work. Also it will work with One touch 8700 Visioneer windows 7 x64 with the drivers for 8900 and 9420.
Next, install the driver, and then open Windows Explorer i locate files at: C:\Windows\twain_32\VizScan\8xxx. Copy them all to: C:\Program Files\Visioneer\OneTouch 4.0\9420 Driver Next step is to tell your computer exactly what driver to use by right clicking on My Computer in Windows Explorer, then Properties, and then Device Manager. Now, turn on your scanner and it will appear on the list. Right click on it and select Properties. There click "Browse my computer for driver software" and then "Let me pick from a list of device drivers on my computer" and browse to: C:\Program Files\Visioneer\OneTouch 4.0\9420 Driver. Select OT_9420.inf and install it. Now u can use your scanner on Win7 and enjoy! Don't mind the different name! ;)
The 9420 visioneer Scanner driver will run the 8900 scanner.
first,go to visioneer and download the .MSI file for the 9420. Run it. The driver files will be found in directory: C:\Visioneer\OneTouch 4.0\9420 Drivers.next, find the 8900 drivers.they will be in c:\ Windows\twain_32\vizscan8xxx. open the file and look for rtscan.dll Rename it old rtscan.dll.if you can't find them,either use Device manager to show you where they are. or you can reinstall the Driver(Xp\2000\Me\Win 89 from Visioneer site. Rename the rtscan.dll file which will be in the twain_32 folder(see above).
copy all the files in 9420 Driver file to the c:\Windows\twain_32\vizcsan8xxx folder. turn your scanner on.windows should find the drivers and install the scanner.
This site has the drivers, installation manual and other files, http://support.visioneer.com/products/9420/downloads.asp . However, you will need to check the bottom of your unit and select the part number for your unit.
Notes from the important notes file, make me think you will have to uninstall the driver you obtained earlier and disconnect the USB cable from the computer. Download the files from the above site and install the driver. The computer will prompt you to connect the scanner to the computer.
I have successfully used my Visioneer 9520 to scan 35mm slides, and they came out perfect. To do this, in my image editing software, I select File/Import/Acquire/Visioneer ScanManger Pro. This opens the VIsioneer scan manager window, where I select "Scan 35mm using:" and then I choose the desired scanning configuration, e.g., "35mm Better, 35mm Best, Custom" etc. See image below.
BTW: After several moves, I have lost my 35mm scanning template. Do you know where I can get another one, or do you know someone who could actually scan theirs and email the image to me? I could then create a duplicate from heavy black construction paper or card stock.
After downloading the visioneer 9420 driver file (found on the visioneer site, but before installing it, remove your old 8100 driver, then install the 9420 driver by running the .exe file you downloaded from visioneer. Then, use Device Manager, go to -update device drivers and in the listing you should see the 8100 listed. Double click on it, click on -update, go to -browse my computer for driver software, then go to -let me pick from a list, then you should see the 8100 scanner appear, click on it, click on next, and then it will install the 9420 driver. My 8100 is working great on a vista system. Don't get rid of that scanner! It works!
3. Install the drivers. Nothing will work... yet, don't worry.
4. Now plug in your 8100. You'll get a message saying that Vista wants to find drivers. Select "Ask Me Later" or just cancel.
5. Next, open up Control Panel and then Device Manager. Find your 8100
in there (probably listed as "Unknown Device") and then right click on
it and say "Update Driver Software". Now click "Browse My Computer For
Driver Software" then "Let Me Pick From A List Of Device Drivers On My
6. Scroll down to "IMAGING DEVICES" then find Visioneer, then you
should see the "Visioneer 9420" driver. Select it. You'll get a
warning from Vista, but continue anyways. That's it... everything
I have had this very problem with 2 of these scanners (8920) and
finally figured out what happens is that the cheap chinese power supply
loses power over time and then finally gives out. Before it fully gives
out it doesn't have enough power to scan properly but will still turn
the scanner on. Symptoms range from terrible scans with noise to the
dreaded "scanner is locked" error. I got a new power supply from
radioshack - 12 VDC at 1.5A (1500 MA) and it works like brand new! Make
sure the power supply can deliver the full 1.5 A of the original! This
is very important.