The documents are scanned but dont appear on later inspection, or if they do they are just a horizontal line across the middle
We have about 20 of these scanners and use Capture Perfect 3.0 on all our machines. Sometimes capture perfect will freeze white along the "file" toolbar whilst scanning documents. The Feed tray will be stuck at the top while this crashes and the documents go through without jamming but when inspecting the work, the images that went through are blank or have a thin black horizontal line on them. We have tried different scanners and different PC's (ones which we know work) but the same people keep getting the same problem. Sometimes the software doesnt crash but the documents still are not correct when scanned. They often occur after a paper-jam if that helps.
Any information would be greatly appreciated.
David Cove email@example.com
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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 scanning a bigger document. Use a blank page big as the scan capacity and scan the blank page.
If for example you are using an a3 scanner, scan a blank A3 page.
When scanning blank page set resolution to an high value, so that you does not lose pixels.
Check scan result, and explore the whole document using zoom to see if the line is still present on the test scan of the blank page.
If there is still the line, then it is either a scanner dirty, probably inside glass, or a dafective sensor on CCD sensor array.
If there is no line, then the problem is usually depending on the software.
In that case uninstall the software and install it again.
If that is not enough to fix the problem, try uninstalling software, doing a system restore to a date before the problem started , and then installing software again.
If the line is horizontal , that is usually a loss of power on the high voltage to lamp. Try reinstalling software first, if that does not fix the problem , and line is horizontal, then it is fault mentioned above. Horizontal lines at the end of a document may also be caused by faulty scanner control board, or scanner going out of memory.
The thick line is either because of dust sticking to the glass or a module problem. Try different brightness settings and scan white paper. If the thickness varies and also the sides of the black strip are jaggered (step like) then it is dust on Glass. use isopropyl alcohol to clean, dont use solvents. If the teickness is same for all levels of brightness and has a sharp edge always, it could be scan module problem.
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
It appears to be a freak problem. The best way is to bring it to original condition. Try uninstalling the scanner, run Scandisk on the Comp, Switch off and reinstall the driver. this may work.