On going problem we can't seem to solve, very light image, tech has replaced dv unit image came back ,but did not last, rear frame of image formation section because of worn contact, toner cartridge drive assy, after drive assy tech thought problem was solved because he had ran several hundred test pages without issue, customer called back next day with same problem. Tech is sure there is no formation on drum. No add toner light , if dv unit is not driving would toner light be on? Anyone seen this? I am scheduled to visit customer Friday. Thank you in advance.
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Re: Km 6030-faint image
There are three likely possibilities:
1) Worn developer bias contact worn or lubricated with conductive grease. Replace the developing bias contact (302FB08481). Do not lubricate. Leave contact dry.
2) Worn transfer belt idler roller at the rear bearing. Replace the idler roller (302FB16450) and bearings (G3001360). When rebuilding, also examine other bearings (63520170, 27505290) and ground contact (302FB16111).
3) Worn rear transfer guide (between the transfer belt and fuser inlet guide). Mylar insulating surface is worn through on the rear transfer guide (971K prints). Replace rear transfer guide (302FB94170).
=^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^= -
Re: Km 6030-faint image
I would change the charge grid. That has been my fix on a lot of image issues with these machines.If at first you don't succeed, redefine successComment
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Re: Km 6030-faint image
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Paul@justmanuals.comComment
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Re: Km 6030-faint image
How many copies is there on the unit? There is similar thread concerning an 820 and I suggested checking checking the toner motor. We' ve had to replace a bunch especially on the higher volume units.Comment
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Re: Km 6030-faint image
Problem may have been improper installation of rear frame on image unit, the rail for pre-transfer corona was not in proper position, poor contact. After testing with several thousand test chart prints machine seems to be operating as it should. We will check back next week to be sure. Machine has 2 million prints, toner motor, dv terminal/rear frame, transfer belt assy, mc assy, dv unit, pt corona, have all been replaced before my visit on Friday. Thanks for the input.Comment
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Re: Km 6030-faint image
i am also having same kind of problem in TA820i...please see the attachment...
when ever the customer replacing toner ,this problem starts. it may affect all copies in a job or inbetween copies.I thought its a loose contact in Hvt area.so i cleaned the Hvt contacts,charger grid,corona wires,no result...then i repalced the Hvt Mounting assly ....no result.... i repalced the Dev.unit,Transfer belt unit, primary charger,Hvt board ...still no result.....after somany visits with in 4 days ,i decided to stay one full day in customer place...during that time just i removed the main charger and pre charger for cleaning...pre chrger wire was in bad condition,so i decided to run the machine with out the pre charger.....now the machine is working fine with out any issues....
still i am wondering ,how the machine is working without any kind of image problem after removing the pre charger...and how this pre charger is giving such kind of problems.....
any other solutions guys...Comment
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Re: Km 6030-faint image
Have you replaced pt corona assy with complete new assy,Comment
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Re: Km 6030-faint image
On the Canons with similar technology it was common to have the pre-transfer units short out producing this effect. The pre-transfer unit loosens the latent image toner to get more complete transfer. Long term the machine will create more waste toner, less toner coverage on the page.
Keep in mind that most MFPs generate different high voltages on the same HVT PWB, so if one of the outputs is shorted, others are also affected. Quite often the separation will short out first, but you'll notice the lack of transfer not the missing separation.
I've not experienced this myself but it males perfect sense. =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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Re: Km 6030-faint image
i agree with you black cat.... i dont want to keep the machine down...the machine is in ministry tender office....somuch of copy works are pending ,because of this issue.....i will be there next week with the new pre charger unit....and update the status.....
by the way who started this thread,he solved his problem????? my issue also same like this,,thats what i posted my thread here....
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Re: Km 6030-faint image
Donnie seems to think it had something to do with the positioning of the imaging drawer and making proper HV contacts to the rear frame. With such a long list of parts replaced, it would be difficult to know which item fixed the problem. Any unit with high voltage connections can short out the HVT. =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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Re: Km 6030-faint image
The list of parts were installed before my visit on Friday , I did not make that clear, the rear frame of the image unit was replaced because of worn DV tab, hotline informed tech it could only be replaced as unit. I have since found out differently, (bulletin) the ground tab for pt corona guide (attached to image unit when corona is removed) was not making contact. My guess is arcing or shorting hv unit or corona intermittently causing faint images. Due to the intermittent symptoms I won't know if it is fixed until customer uses machine a few days. Normally I would have thought DV tab was the culprit but it was making good contact. I will update my post when I am sure problem has been resolved.Comment
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Re: Km 6030-faint image
I have checked the status of this machine , so far it has been working properly. Not sure if it was rear frame of image unit or pt corona. Customer complained of intermittent light prints. DV tab was worn and machine was close to pm. Frame had been replaced along with pm. Customer called back. Tech checked out, image would not fade for 700 prints. Could power off/on . Image would come back then start fading from bottom edge progressively across page. When I looked at machine Image looked fine, I checked dv tab contact looked sound. Removed dv unit, drum etc, pt corona would not come out easily. It all came apart. The cleaner assy came off then I got the rest of it out. I dis-assembled rear frame could not find anything out of ordinary. Re-assembled unit and corona but had a hard time getting corona back in I had put frame back together wrong . Rail for corona was in wrong slot. Assembled correctly. Ran 500 duplex of test chart. On/Off ran 750 of chart. Came back later in afternoon replaced pt corona for good measure. Ran another 1000. You be the judge. I''d rather be lucky than good.Comment
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Re: Km 6030-faint image
Congratulations. =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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