scanner image quality density problem

[slipchuck]

Hi all!
I am wanting to find a way of profiling my HP scanjet 5400c but I need to know something about the image output first.
when I scan an image, they turn out lacking density. Also, one side of the output image has more density then the other.
Are the flatbed covers supposed to let light in or is mine warped?
Anyone had this problem before?
I have tried all updates, firmware, resets etc.
It is a good scanner otherwise (2400x2400 dpi optical)
anyone have any ideas?

slipchuck

[slipchuck]

My display is calibrated and I can compare the output scanned to the digital origanal




thanks

slipchuck

[saby]

Hi!

put a black and a white paper into the scanner and scan it if there is any difference between the parts (not same dark or white) U should check the hardware.To calibrate ur scanner get an original film of gray scale steps 5%
-10% scan it, and check it in PS. I don't know exactly HP scanjet 5400c but I think it can't handle ICC profiles so if U know Ur scanner missmatches better to make a PS action to correct them.

Saby