My Canoscan lide 700f will no longer scan negatives

Try this
http://www.usa.canon.com/cusa/consumer/products/scanners/film_negative_scanners/canoscan_lide_700f#DriversAndSoftware
CanoScan LiDE 700F

Here you will find relief. Canon CanoScan LiDE 700F

For those having the "Executes calibration. Pull out the film and place the Film Adapter Unit at Frame 1." issue and cannot calibrate the scanner for NEGATIVE FILM, it took me ages to figure out how to solve it.
Solution: calibrate the frame, WITHOUT any film, adapter plug and placed in frame 1, and proceed to do the calibration WITH THE SCANNER COVER OPEN.
Before I tried everyhing, install new drivers for Windows 8.1, MP Navigator, and nothing happen. Now it works like the first day. Hope it helps! it certainly helped me.

Unplug and plug fully jack of the lamp.

The only thing I could suggest is to go to the canon websote and update all the software for the 700F so that they are compatible with 10.7.3. The other thing is to check that your quicktime software is uptodate as well.

Hi
I think the reason you can't find instructions is because (according the Canon Website) this scanner can't do it.
Flatbed scanners that can also scan transparencies have fairly thick lids and usually a power connector going into the lid so that the transpaerncy can be lit from above. The LIDE 700F is the model you need.

A scanner is made to scan flat pieces of paper. Any 3D object will be blurry because it's not a photo camera.

Drivers are specific to the operating system (ie drivers for Windows XP may or may not work with Vista). Click on the link below and you will be navigated to the Canon driver download page. Choose your operating system (OS) from the drop-down menu, your preferred language and you will be ready to download the drivers.

CanoScan LiDE 600F

Download driver canoscan lide 100 for linux here

http://www.bioticaindia.com/canoscan-lide-100.html

Colour Negative.?
Have you the software set correctly.?