When making copies from the automatic document feeder, there are black vertical lines on the printouts.

This is a very common problem among people who make copies from their automatic document feeder. Usually this is a relatively simple fix, when the copies go through the automatic document feeder, it goes over the device that inputs the printing on the paper into the copier. There is a piece of glass which is narrow, usually only about a inch wide or so, called the, “slit glass.” If anything gets on this, “slit glass,” say for instance, “white out,” you will get a vertical black streak down your copies. This is pretty easy to repair, all you have to do is open the document feeder door and find that little slit glass and look closely at it and see if you can find any white out or smears or anything on that piece of glass. The best way to clean it is with a moist cotton cloth and just wipe it clean. If you wanted to, you could use Windex or something close to it and clean it that way. Just make sure that when you wipe it clean and dry it, that there are no streaks when the job is done. If after you have done all that and you are still getting a black vertical streak, there may be another problem with your machine and it may be a good idea to call for service.

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Category: Troubleshooting

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