Copy Quality ... if you can call it that.

[Blizzoo]

Re: Copy Quality ... if you can call it that.

I had a similar anomaly putting text like a puzzle when copying documents, in my case was a Xerox M118 without printing option. Laser was good, problem was the MCU-PWB, hope this helps.

http://www.copytechnet.com/forums/xerox/85302-c-118-weird-issue.html?highlight=xerox+m118

[allan]

Re: Copy Quality ... if you can call it that.

If you can get that machine to do the same with printing it would be common image processing.

[dbrownlee]

Re: Copy Quality ... if you can call it that.

I had a Toshiba dp 3580 do exactly this to me. Started out just once, then eventually started to recur until it was almost every copy. Luckily we had a donor machine in the shop, so we replaced EVERY pwb, HDD, corona, CCD, LSU, the whole 9 yards. Nothing worked. Working via phone with a very good tech rep, we determined it was likely the cable harness that ran from the SLG to the SYS board. Unfortunately it was not listed in the parts manual nor spared (confirmed through Toshiba Japan) so we could not conform it. The cable from the donor machine was destroyed at some point during the process so we couldn't use that one. We ended up calling Wulff Enterprises and replacing the machine. Not much help I know, but one of two that I have not been able to fix in Almost 20 years of doing this.

[blackcat4866]

Re: Copy Quality ... if you can call it that.

I had a Toshiba dp 3580 do exactly this to me. Started out just once, then eventually started to recur until it was almost every copy. Luckily we had a donor machine in the shop, so we replaced EVERY pwb, HDD, corona, CCD, LSU, the whole 9 yards. Nothing worked. Working via phone with a very good tech rep, we determined it was likely the cable harness that ran from the SLG to the SYS board. Unfortunately it was not listed in the parts manual nor spared (confirmed through Toshiba Japan) so we could not conform it. The cable from the donor machine was destroyed at some point during the process so we couldn't use that one. We ended up calling Wulff Enterprises and replacing the machine. Not much help I know, but one of two that I have not been able to fix in Almost 20 years of doing this.

Wow, Dave. That's interesting! I think we've got a couple donors in storage that could donate harnesses. I hope mine doesn't get quite that interesting. =^..^=

[mckinley]

Re: Copy Quality ... if you can call it that.

we had an e455 give an image like this & it was the logic board at fault.
I have however also had similar from the /work partition being corrupt on EBX machines (5&C mode to check)

And I also had a 4540cse give a similar effect (usually the charge block on rear frame) due to one of the grids being fitted incorrectly last week.

[irtek]

Re: Copy Quality ... if you can call it that.

I had an es520 do similar. It was a loose set screw on the drum drive allowing the drum to start and stop randomly.

[Harry]

Re: Copy Quality ... if you can call it that.

this is for mi a bad ccd cable or connection issue after 25 years toshiba do canon now and it looks like bad scanner connection
please advice

harry

[Big_Al]

Re: Copy Quality ... if you can call it that.

I have trouble blaming the laser since it has no memory to assemble such a composite mess. My vote would be scrambled data from the HDD due to an anomalous electrical glitch. If it were consistent I would troubleshoot it, otherwise just let it go. It's like going on a service call for noise and when you get there its not making noise. All you can tell the customer is until it is consistent there's no way to correct it. Something that intermittent isn't a disruption of their business and should be treated no different than an occasional paper jam.

[MUMMIM]

Re: Copy Quality ... if you can call it that.

This is kind of hard to describe. It's happened only once. I got samples.

Let's start with the basics. The machine is an e Studio 306. The enduser loaded (8) single sided originals to the document feeder LT. The machine is set to copy single sided, and the only matching paper is in tray #1 LT plain. The enduser presses Start. Pretty straightforward, yes? The result is not so straightforward.

Let's imagine that I took my (8) originals to the paper cutter and cut them the long way at random widths, so that I had ~48 strips of paper of random widths x 11" long. Then I took a piece from the first page starting at the left, and a piece from the second page, and a piece from the third ... and taped them all together: that's the first copy. Now imagine that I had cut the strips at different random widths, and again assembled a piece from the first original, a piece from the second, a piece from the third ... and taped them all together: that's the second page. All eight copies came out this way, each one unique, only on one occasion.

Clearly the data is getting corrupted, but where? Probably not the CCD if these sample strips vary in width and combination. How about the HDD or short term memory storage, or the system board where the image processing is done? Has anyone seen this?

[ATTACH=CONFIG]32297[/ATTACH]

=^..^=

many people say about scaner ( CCD, cable harness...) why didn't you test it by pringting function ? if print the good quality, scan unit have problem forget all other unit and try to concentrate only scan unit, contrary to the good quality , forget scaner unit and you can zoom in, zoom out for test some unit else (image unit,drum unit...)....some experiences with you

[Sriyanjan]

Re: Copy Quality ... if you can call it that.

What about laser unit. Clean reflection mirror. check error history .

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