Has anyone had any issues with these units pulling developer and laying it on the copies? I have had an FO2080 in place for a year and all was fine until now. I have 3 machines, all of a sudden, pulling developer. The 3 machines are in 3 seperate locations. The FO2081 is brand new and has gone through 3 toner/dev units in 3 weeks and the two FO2080's have gone through 1 each in the last 2 weeks. We have checked voltages and bias and all are fine.
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Re: FO2080/2081's Pulling developer
Replace the transfer unit in the right door.
Failing to plan is planning to fail!!! -
Re: FO2080/2081's Pulling developer
Bryan,just wanted you to know I just posted about an FO-2080 pulling developer on front side of machine and causing lighter images on front side about an inch wide starting at front edge of drum. I changed drum unit, td cartridge and transfer corona and though it doesn't seem to be pulling developer now the image is still lighter on front edge. Frank/ActionPhotocopyComment
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Re: FO2080/2081's Pulling developer
Thanks.That's an excellent point Lawrence seeing as that would cause a gray rather than black image.FrankComment
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Re: FO2080/2081's Pulling developer
I would imagine that non OEM toner /developer non OEM process unit might pose a problem if not compatible. FrankComment
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Re: FO2080/2081's Pulling developer
I agree the transfer is most likely the problem, but you should also check the drum.
The drums can wear the outer coating off and this will cause the main charge to short out.
This will also cause the developer to be pulled out.Comment
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Re: FO2080/2081's Pulling developer
Reason I did not mention transfer was because it was mentioned several machines pulling developer at same time which to me is more of a possible indication of supply proble. FrankComment
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Re: FO2080/2081's Pulling developer
This has been going on since the early AL-series machines. It's the scortron in the drum unit. Pull it out, clean it, make sure the saw tooth hasn't come un-glued from the plastic. This will start as a black line down one edge of the paper. If you don't fix it, it will suck out all of the toner and then start on the developer.
Seen it, oh...I don't know, 1,000 times.Comment
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Re: FO2080/2081's Pulling developer
Well, my supplies are sharp oem.
The scortron is intact, secure and clean.
The image quality is not impacted by lines or fading.
The DV Bias and main charge voltage is within specs.Comment
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Re: FO2080/2081's Pulling developer
Recently I replaced the drum and the dv and the issue continues. A line monitor showed no errors in the electrical and Sharp is advising to replace the high voltage PWB. Anyone gone as far as replacing this pwb?Comment
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Re: FO2080/2081's Pulling developer
With AR208's we have been battling this for a couple years. Have replaced the HV PWB with some success others it is with the side door assy. Recently had one where the drum, process unit, developer unit, developer, HV pwb and door assy. Was replaced and it dumped two days ago. Tech said drum was shorted again. Can,t find the cause as yet.Comment
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Re: FO2080/2081's Pulling developer
Your problem is the primary transfer grid on the drum unit. These become loose after time and get to close to the drum. This causes the drum to pull extra developer and end up dumping everywhere. I really hate removing these for cleaning because the smallest bend to them cause them to start dumping toners everywhere. This machine series has always had this issue, its kind of worse on the newer ones then the older probably due to cheaper plastic being used.
The corona wire can contribute *slightly* to this but usually I only replace these wires about every 50K copies. Even then they dont pull a bunch of toner still.Comment
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Re: FO2080/2081's Pulling developer
Excellent post Hellcat.Comment
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