Unfortunately the biggest suggestion for this is to upgrade to the most recent version of the client. However while I know the 10.x client will work with older versions of laserfiche, I'm not sure it will work all the way back through 8.x.

So I would start by making sure you have the latest Kodak drivers first: http://www.kodakalaris.com/en-us/b2b/products/document-scanners/departmental/i1320-scanner

With Scan Connect I believe you have access to the ISIS drivers along with the Twain Drivers. I would obviously try the ISIS drivers first, but if you are running into this issue and you can't update your lf client anytime soon I'd try switching to the Twain driver to see if it happens. 

In the smaller throughput scanners Twain usually works at at least 90% of the speed of ISIS so it usually doesn't make that much difference in throughput. Obviously this is different with high throughput scanners. 

Good Luck!