Canon LIDE 210 Model no: 4508B002 Serial #: KEKB72335: produces grayed out (washed out) scans.

[longtimelidefan]

Over the years,  I have happily used the Canon LIDE 30, 70, 100, 200,and now this new Canon LIDE 210.
Model no:  4508B002
Serial #:  KEKB72335

I am scanning in Photoshop Photoshop CS2 v 9.0 under Windows 7 Professional using the Twain driver supplied by Canon:  sd68-win-lide210-17_0_4-ejs.exe.  This driver installs two ways of scanning and you can see from the images below which one I am using.

My new Canon LIDE 210 is producing heavily washed out scans:  both in Color picture and in Grayscale picture mode.

I am addressing (I hope) foreground color issues in Photoshop:

Here is a AAA map cover I'd lke to scan:

Note how the background around the previewed map is "blued".

Here is the washed-out grayed-out scan before retouching in PhotoShop:

Here is the image "adjusted" with the Photoshop Controls I used.

The above controls yield this improved image.

To close:  when I scan well-definitioned receipts in Grayscale picture, I can hardly read them.

which yields this really greyed out scaned invoice,

To make them legible, I really have to force them in Photoshop.

By setting prescan controls to roughly the same brightness and contrast setitngs I am using in Photosop,

I am able to improve things somewhat.

This is not normal.

What am I doing wrong?