I use two scanners, a Canonscan 8800f for slides etc, and a Canon MP640 for flatbed and printing. I have W7 and have just updated to Photoshop CS5. I thought I had all the latest drivers, and in CS4 the scanners were using TWAIN, where you can adjust the settings (dpi,image size etc). CS5 only offered the WIA scanner interface, and I can find no way of adjusting the scanner settings. Having spoken to Adobe, I have now downloaded and installed a plug in that seems to have solved the problem, but am surprised this does not seem to be a general issue - do others use WIA and if so can you adjust the settings?
But WIA has kicked in when testing/running kit that needs the support and I had not installed the appropriate software.- It is simply a basic diver for scanner/camera built into Windows for this purpose- just gives the basic 'get go' for the item without the 'bells and whistles
I have an iPodTouch plugged in for charging the battery. I do not have Apple Store or iTunes on this machine So Windows keeps coming up to install the device - Now it says it has done so - but it can only be WIA doing its bit.
Fine, what I found is that WIA gives no opportunity to adjust the scanning (dpi,etc) whereas TWAIN does.But Twain is not available with all programmes, eg the latest Photoshop unless you get the plug in.
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