Aficio-2105 verticle lines from scanning

[jmhashmi]

Hi All,

I have a small problem but it seems to be big with the time. Vertical lines are appearing on the copies and appears on all the multiple numbers of copies. Attached is a sample of the problem.

[techtrainer]

Lines on copy

Do the lines appear only when running originals through the document feeder or do they also appear when you run copies off of the glass? If they only appear when you run through the doc feeder, clean the doc feeder exposure glass.

Also, print out the counter list. Do the lines also appear when it prints out? If so, their is a main body problem (drum, charge, etc.). If not, then it's a problem occurring during scanning of originals.

[teebee1234]

If the top of the page is the lead edge and those lines are starting further down the page then the problem will be dirt/dust on the mirrors. What happens is the section of the mirror(s) the CCD sees is only a narrow strip across its length. As the mirrors move, the "angle of attack" of the image strip seen moves up or down the mirror surface, so if a good piece of dust or dirt is on the mirror it won't be a problem until the scanner gets to the position that will cause it to interfere with what the CCD sees. Clean the mirrors thoroughly.

Now if the lead edge of your sample the left (long edge) then we have a different issue.

[jmhashmi]

Sample is given as Counter print comes from the machine(Left to right- Leading to Trailing).
This problem occurs when we copy from platen glass or ADF. While printing nothing appears on copies and a perfect output is given by the machine. Scan to file also produces these lines and if I store any document to Document server and print that back, that lines appear on the copies.
Replaced Scanning lamp, Harness, CCD, Polygon motor but problem did not resolve.

[teebee1234]

In that case then it's some kind of digital artifact. Try reseating the IPU and any connections associated with it. Are the lines exactly the same or more random in nature? It looks like corruption of the data that's being sent to the IPU and processed.

[jmhashmi]

Lines are not static. They are moving and are less or more.
I think this could be high voltage problem because when we are copying full system is in use and load is more. In that case it might fluctuate and this problem appears. Machine made 2 million plus copies only. I have some machines have made more than 10 million images and are in good condition.
I will try checking high voltage and electrical areas because upper portion is fully inspected and related parts replaced but no use.

[teebee1234]

I still think your issue is related to the IPU, as that is what processes the data from the scanner (either the board itself or the connection between it and the SBU). Try printing test patterns to isolate it -IPU SCANNING TEST PATTERN (SP2-902-001) and IPU PRINTING TEST PATTERN (SP2-902-002).

[jmhashmi]

Lines on the copy only

Thanks for the details.
I tried printing Scanning Test Pattern and Printing Test Pattern and only problem appears on the Scanning Test Pattern. That was forcing me to concentrate on the scanning section nor the process section. But after completely examining did not resolve this issue with the IPU and firmware. If you see the image it is showing 2 lines, small and big. these are only appearing when we use scan for copying or scanning.
Not sure what will be the actual cause, never face this problem in Ricoh.

[teebee1234]

The IPU uses the memory DIMMs to process, have you reseated them a few times or try replacing them? Knowing these are digital lines that only occur when scanning, there is a finite number of things that can be causing it. You've eliminated the scanner itself (you said you replaced the CCD/SBU). That leaves only the harnesses and IPU/Controller section.

[jmhashmi]

After weekend I again visit the customer. They have 2 machines of the same model. I remove the CONTROLLER BOX from the other and replace with this machine just to confirm the cause making this problem. But after replacingg this box machine had the same problem. These lines are not appearing not all copies but on some copies, some times every copy has a line and most of the time it appear after several copies and lines are not constant, they are shifting their position and are near to the trailing edge of the copies.
Any suggestions

[jmhashmi]

I am not sure what was the problem. But after inspecting and replacing the neccessary parts for the related problem machine was in the same condition. When I inspected PCU found generic OPC that customers replaced locally just to reduce his cost. And he climed that these lines start appearing after this replacement but was not sure what is the reason. I replaced new OPC B070-9510 and after replacing the OPC lines did not appear but still I am not sure what was the actual problem. Just to update my problem I am posting the details which resolve the problem.
Any comments?