HELP - Repeating Marks from 3880

pf123

pf123

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marks.jpg


These repeating marks keep showing up in one section of the prints coming from my 3880. They show up in the darker areas of the print. I don't know what to do in order to get rid of them. I am printing onto Inkpress Luster 240gsm paper. I called Epson support and they said to try raising the platen gap but that has not eliminated them. I have also run a nozzle cleaning and check and all nozzles are working fine now. I think there is maybe some debris in the rollers but I have been cleaning all the rollers that are visible with a damp cloth and pressing the paper feed through button but the marks are still there. Please HELP!
 
turbguy

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The periodic nature is interesting. In you photo, does the paper advance from left to right or top to bottom? If left to right, I would suspect something in the paper path is damaging the paper, like a roller, or another paper-control mechanism that is defective in some way that cleaning visible parts does not solve...
 
pf123

pf123

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In the photo the paper advances from left to right. I agree that it is probably a roller or something else that is doing it as that explains why it shows up every 15mm. Now what to do about it???
 
turbguy

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The location is very specific to the paper path. A close visual inspection (mirror assisted?) of the paper path in line with the defect is in order. It appears to occur after the ink jet passes. Is the media physically distorted/dimpled?

I would try different thicknesses of media to see what results.
 
Smile

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Open the printer cover, trick the printer so it thinks the cover is closed. Now print and inspect with flash light do the marks appear after print head prints or before. This will give you idea where the problem is.

Now get printer service manual to see what can cause this. Then disassemble the printer and try to fix it.
 
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