I was getting streaking across all photos that I was scanning. So bad that I researched getting a new scanner. Then one day it started working just fine. Now today I scanned some slides and when I tried to scan photos, the streaking is back. Any advice?

You have to use the "FILM AREA GUIDE" included with the scanner. This black plastic guide leaves a small area at the top of the glass open so that the scanner can calibrate itself at the start of each scan. Use the guide or leave at least 8mm between the top of your film and the top of the scanner glass.

execute a calibration to correct the wrong color:

1. place your photo on the scanner, with a distance of 0.25 inch from the edge of the glass
2. open Epson scan and select Professionnal Mode
3. select the document source
4. select the image type
5. uncheck thumbnail then click Prevew
6. crop the area of the image
7. Click zoom to fine tune the area you see the streaks
8. select the resolution of 72 dpi
9. scan your photo

if the problem still not solved, you need to change the scanner unit , there are many dead pixels.

When I had the same problem, I found out, that Epson did not like Generic Ink. As soon as I replaced it with Genuine Epson Ink, it was fine.

Make sure you do Maintenance, Nozzle Check and Head Cleaning. You might be clogged?

Good Luck.

That problem is caused by dust or debris on the scanning "eye" itself. If you are confident in your skills, you can (UNPLUG FIRST) disassemble the scanner and use a microfiber cloth to clear anything on the light bar that scans your documents off.

Hope this was a little helpful,
matt

did you properly close the scanner lid? these type of errors do usually occur when you unproperly close the lid wherein light passes inside causing it to reflect on the document that you are trying to scan

I also own a v300, and I have noticed that I occasionally get rainbow streaks if I bump the scanner at all while it is scanning negatives, so this might have something to do with vibrations in the machine. Is it sitting on a stable surface?

http://www.carlmcmillan.com/CanonScanner/Canon.htm

when scanning photos and especially magazines, don't go to low on the dpi (at least 300) and select DESCREEN as well as grain correction: HIGH

I think your flatbed lamp is damage

if u replace or color it pure white ink

I wish I knew, mine just started doing the same thing. I was looking to find a resolution to this when I found your post. I think it's time to get a new scanner...