Red and yellow streaks appear in scans, always in the same location. The scanner was cleaned but the repair person could not find any problem with the equipment. Yet the streaks persist. How do I resolve this?

Yes you can. Just be careful not to force any movement of the scanner lamp. Be gentle. Otherwise you have nothing to fear.

Hp scanner 2300c
while scanning a blue or red line appears on scanned imajes

Clean the glass thoroughly using Isopropyl alcohol. Dont use solvents. Check if there is any scratch on the glass. Repeated scanning with stapler pins can scratch the glass. If it is scratched, you may need to chage it.
S. Mohan, India

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

I've had a similar problem with the streaks, lines and color bleeds appearing in the scan. Try uninstalling the all software and drivers for the scanner and reinstall. Worked for me. Have had to do this a couple of times since I've owned the scanner... about three to four years now.

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

Is the scanner scanning normally otherwise? Try scanning a printed matter with white background and if it is okay, then the streaking may be because of excess brightness chosen. Check if the paper movement is at constant speed. If it is smooth paper, it may slip and the same area may scanned again, appearing like a streak.

S. Moha, Chennai

I think your flatbed lamp is damage

if u replace or color it pure white ink

I took the scanner apart. Then using a dampened eyeglass cleaning cloth, I gently cleaned the 3 internal mirrors.
No more yellow streak! :)

Hi,

Over time the automatic document feeder (ADF) will get dirty, occasionally causing vertical black streaks or lines in scans and copies .

Manual cleaning of the ADF might be necessary. Follow the procedure below to manually clean the ADF .

You will need the following materials:

• Soft lint-free cloths
• Glass cleaner

if you look carefully on the left side of ADF ( top feeder ) there is an assembly which u can lift , there wud be a set of rollers if u lift that part there would be a glass strip . u are suppose to clean that strip .
While holding up the inside of the ADF, clean the glass in the location of the vertical streak with one of the cotton swabs. Try cleaning the glass first with a dry cotton swab. If that does not correct the problem, then moisten the swab with glass cleaner .
If the vertical lines or streaks still appear, go through the above cleaning process again, this time cleaning the entire surface of the ADF scanner glass.
and after this try the following steps as well .
CAUTION: Use only glass cleaner. Avoid abrasives, acetone, benzene, and carbon tetrachloride, all of which can damage the scanner glass.