White scans as gray on Color Scans

DEVONthink Tips
1

I cant seem to figure this one out.

When I scan a document in color with a white background, the background comes out gray. When I scan a document in b/w, it comes out fine.

Here are some sample PDFs:

Black and White Test
Color Test

I am using a Canon MX870.

If I scan documents via the software that came with the scanner, I have no problems. It only happens when I scan via ExactScan.

Currently using the latest version of Pro Office 2.0.7.

Prior to the Canon MX870, I had a Brother MFC-440CN and it had no problems scanning.

Any ideas?

Thank you,
Michael Ruge

2

Hello Michael,

it seems as the white point in ExactScan is not correctly calibrated for your scanner. You can change this in Advanced Settings -> White point by increasing the white color value.

Best wishes,
Susanne

3

Hi Susanne,

Thank you for your reply.

I tried that and it did not change a thing. Still comes out looking gray.

Michael Ruge