Thick black and grey line when scanning or copying a document.
When scanning or infact copying, the scanned image presents a black, sometimes black and grey band in the area where the paper lies next to the hinge of the door, or be it the area closer to the paper feeder. This happens in all modes of scanning ( auto, home or pro.), I've reinstalled the software, switched the machine off and then on, left it on, tried fiddling with the config settings, nothing. It's under warranty but it would be nice to know what's causing it.The problem must be with the scan bed, as it prints fotos or docs, loaded from the computer fine.
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its important to find out whether the \'lines\' are in scan direction/ or only through Radf or only from scan glass,
if the lines are only showing when documents are fed throught the Radf, then the problem lies with the document scan plate( left of the main glass platen (about 2" in width)) or with the scan plate blade cleaner
if the lines ONLY appear when copying from the Glass then the issue lies within the optics (probably nothing more than a clean will be needed)
another question would be to ask if the lines are solid (black line overprinting image) or if they are \'missing\' lines where the image has failed to copy, sometimes it can be hard to work out which side the fault lies,so try shaded greys as a copy original .
if the scan lines are appearing on both Radf and Glassplatten ,mode then the issue may be dirty optics/ccd sensor or it could e an indication of the ccd failing or image control pwb in error while interpreting the image file.
what to do
1) place a grey sheet of paper in the Radf and have the copier photocopy both sides of the original and print to single sided sheets ( so the printer turns the original over to complete the task)
observe the result.
2) have the copier photocopy directly from the platten glass- single sided.
observe the result.
ckeck to see if the error has appeared on both sets of prints ,
if the error has only appeared in the first set of prints then the issue may be a tiny DOT on the slit glass (left of platten) - a dot on this glass will indeed appear as a Line as the original is scanned across the glass.
Try to wipe the scanner glass clean with a soft lint free cloth.
If the "thick black line" also appears when making a copy, then there's something wrong with the scanner hardware. If this is the case, I highly recommend you to contact Lexmark Technical Support for additional assistance.
This sounds as if you have some ink/contamination on the small scaning glass that sits to either the left or right of the main glass on the copier.(Depending on the model/make)As your original is scanned over this thin piece of glass the scanning device will see any spots and this will result in a black line down the page.Please clean the glass with a soft rag.
There is something on your scanner glass. Clean the glass with glass cleaner. If this happens when using the automatic document feeder, open the top side cover where the paper feeds into. There is a narrow glass strip there. Clean that as well.
If this fails, the scanner head has a bad sector on the CCD and will need to be replaced. You will probably find that it will be cheaper to replace the printer entirely if that is the case.
This issue occurs if the scanner lamp is not getting enough voltage. make sure that the printer isn't connected to a surge protector, also you may try making a copy of any document. this will be a hardware test, a reset of the printer might resolve the concern. since the reset requires technical supervision,
If the line only appears when the scanner is used & not when printing directly from the computer, you are correct in assuming the problem lies in the scanner assy. There should be mirrors attached to the scanner assy which will gather dust and cause copy/scan problems. Remove the glass & clean the mirrors with a DRY cotton cloth. Do not use any cleaning solution on the mirrors as they are sometimes treated & can be ruined if they come in contact with a cleaning solution. Use the dry cloth to wipe off the lens while you have it apart.Also clean both sides of the copy glass while you have it off. Reinstall glass & test.Cleaning the optics solves the problem most of the time. Good Luck!!
Grey as you know is different shades of black. Uncompressed TIF can store this information. Compressed TIFF is not designed for this. Compressed TIFF is for blck & white only. Try JPG option. JPG can compress Color & Grey. For pure black & white chose TIFF compression.