Artifacts in scans from v750

[petr_val__ek]

I'm scanning 120 film using Epson V750. Sometimes I get straight narrow lines

running in paralel across thw whole scan (see attached image). What is weird

that when i scan the image again they disappear (sometime I have to scan the

same image several times though).

 

Does anybody have an insight as to what could be the cause of it? it is not

softaare problem because the problem appears both with Epson Scan and Sivlverfast,<div></div>

[mendel_leisk]

Is the travel of the scan head left-to-right in the above sample? If that's the case I'd guess something is interupting the transfer of scanner info to the computer, intermittantly.

 

I know with a couple of my Minolta film scanners, particularly when ICE was off and the scanner was really able to "gallup", it would pause every so often during the scan, I would guess waiting on the computer. It did not show up in the scan, but in your case it could be something like this.

[petr_val__ek]

Yes, it is left ro right. I've just rescaned the image. The lines are still there, but in different positions. ICE is on.

[evan_goulet]

Is it B&W film? ICE and B&W do not play nicely together. Try turning ICE off.

[ferensen]

Are there any other electrical devices, small motors, etc. in operation nearby?

[anthony johns]

Sounds like your computer isn't keeping up, kind of like a reverse buffer underrun.

[steven_clark]

You may also want to clean the calibration area, there seems to be some banding too.

[ronald_moravec1]

Clean the rest of the glass while you are at it and the one in the cover.

[petr_val__ek]

I cleaned the glass using Tetenal's cleaning cloth and "Scan clean ultra" and then noticed it left some residues on the glass. It led me to remember that not so long ago I did some cleaning using the some utilities.

 

So maybe those image artifact were from improper cleaning? I'll give it another touch with the cleaning cloth and will see.

[ferensen]

Change your AC source. Use an extension cord if necessary and move to a different AC outlet. Try several locations if available.

[petr_val__ek]

I'll give it a try. I've just realize that those lines are not the only problem. There is also some weird banding.

See attaches sample.<div></div>

[roger_smith4]

Turn Ice off and scan it again. ICE will eat away at the lines/borders in your image as it thinks they are dirt.

[petr_val__ek]

It is C41 film so it is not caused by ICE. Also, this doesn't appear all the time. Usually I can get rid of these artifacts by just rescanning.