Canon dr 7580 is not scanning multiple pages.

You will need to check your page settings. As each program is different, the page setup will generally stay the same. It will also change if you are scanning at 0, 90, 180, or 270 degrees as well.

Two step process, scan and save the image, then print and select landscape

You need to run Qumatool to reset the counter

S. Mohan

You cannot swap upper and lower images. You can scan the page twice (in duplex mode) by reversing the same. Ensure which side is giving perfect output.
DR 7580 is a CONTACT scanner and hence the paper has to touch the glass surface properly. There are two full sized rollers, just above/below the scanning module, which does this job. Ensure that they are proper and there is enough pressure, press and release 3-4 times to check it is stuck.
S. Mohan, Chennai, India

If the Black lines are jaggered and are vary in size with different levels of brightness, then most likely it is scratch on the glass. If the lines are sharp and perfect and does not change when different brightness is chosen, then it could be failure of CIS module (Try this under B&W mode). To the best of my knowledge there is no concept of initialising the CIS, you may need to clean the Shading sheet.
S. Mohan, Chennai, India

Select 'auto detection of page size instead of a fixed size.
S. Mohan, India

Your hard disk must be almost full. Direct the scanning software to send data to a hard Disk location where you have enough space.
S. Mohan, India

Check if you have chosen the 'duplex' option.
S. Mohan

You need to do it only once! Capture perfect remembers the previous setting. If you install Capture perfect in another system it will be only in the defalut mode. You cannot transfer the settings
S. Mohan

About 99% of the time, there is something stuck on the lens. Our clients that use these are hard to convince of this, but often if you take a small flashlight, you can either find something stuck on one of the lenses or there's a scratch on one. If it's scratched, you're out of luck and will have to replace it. Otherwise, use a light alcohol based pad and clean with it wrapped around your fingernail. Kodak scanner cleaning supplies work great.