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Do the lines appear in the same location on all images? Please clean the glass with isopropyl alcohol.IF the lines are crisp and sharp at the edges on all levels of contrast, then it is module problem. If it varies depending upon the contrast chosen and is also with jaggered edges, it is dust stuck on the glass. Dont use solvents.
S. Mohan, Chennai, India
Most likely the scanner has dirt on the glass that is over the imaging array or the glass may be scrached. If the glass is scratch, the imaging CCD array need to be replaced. If you do not scan the rear of your documents, you can swap the upper with the lower in the case that one is scratched.
The imaging array are the green long bars, one at the bottom of the paper path halfway inside the scanner and the other is above it. Look closely for a small spot of black toner or dirt stuck
on the glass. Take a soft cloth, wet it with water or alcohol if needed and clean the glass.
Pass you finger over the glass, try to feel if all of the toner or rubber residue has been removed.
You might try looking at the specific area were your documents image is getting the line. It will
help you pinpoint where you should clean. CAREFULL not to push on the glass as this
might break it. Hope this helps.
There is a spot on the thin strip of glass that sits next to the large scanner glass. Because you are moving the paper when using the feeder, a spot appears as a line. Shining a flashlight on the glass can help you locate it. You can scrape it off with a finger nail or clean it with a damp cloth.
Normally dark lines are a speck of dirt sticking on to the glass and when scanned continuously, it appears as a line. Clean the glass thoroughly. Ensure the slides are dust free. If the lines are appearing in different locations, it means the dust gets removed while scanning. Line in the same place could be because of glass is scratched. The above is common with roller scanners.
For fat bed scanners, there will be no scratch on the glass. It must be from the slides/documents
This is not the only solution, but this might help.
Put a blank page in as the first page and see if all of your documents scan completely.
You may need to clean the ADF. Try the following:
Cleaning the Automatic Document Feeder You may need to clean the ADF feed mechanism if your documents do not feed easily into the ADF, or several feed in at the same time. To clean the ADF: 1. Dampen a soft cloth with some isopropyl rubbing alcohol (95%). 2. Press the ADF cover release on the top left of the scanner body to open the Automatic Document Feeder cover. 3. Wipe the feed roller from side to side. Rotate the roller to clean its entire surface. 4. Wipe the pad from top to bottom. Be careful not to snag the cloth on the springs on either side of the pad. 5. Close the cover when you’re finished. NOTE: Please be careful when cleaning the roller. The roller is designed to rotate in one direction only. As you’re cleaning the roller, make sure it rotates easily, and continue rotating it in that direction while wiping it clean. Do NOT force the roller to rotate in the opposite direction. Forcing the roller to rotate will damage it, and may cause the scanner to feed pages incorrectly.
Please let me know if this has helped and thank you. Binary Bob