b&w IR 8500 leaves black streeks no error codes

[Guest]

We have a IR 8500 that leaves black streeks on one side of the page. There are no error codes. I can't explane it very well since it is not mine but you can E-mail Ridge Road Press at rrp@pa.net for more info. Please put Image Runner in the subject line. If you live in Pennsylvania and need to take a look at it compinsation may be possible.

[11x17]

lower fuser bearings have ground into the lower fuser roller causing metal dust that transfers to the ufr and then onto your paper. Definitely a service call and check book is needed to fix it.

[yourownfree]

needs service

sounds like a service call to me too. Whatever it is, we can all give our opinions, but either way its not a simple user fix. Since there are a couple of things that can cause this. One is already mentioned. Others include cleaning blade failure, primary grid wire dirty, hair inside machine in the wrong place(dog,cat,human)or fuzz, or like was said fixing section is toast. To isolate the fixing section from the drum area, stop the machine just after the paper passes the drum unit, before it gets to the fixing rollers, yes it will jam at this point, but oh well. Now look at the paper to see if the line is on it. if it is then its probably not the fixing assy.Not saying the fixing assy might be shot anyway and cause other problems. But the the line if its there is coming from areas before the fixing. Now if the line is not there, then the fixing area is shot. either way service is needed.

[vanlierdechad]

If we jam paper in the unit we can't get the unit apart when we remove the three bolts any ideas?

[vanlierdechad]

The E Mail in my First post is wrong it should be rrp@dejazzed.com
Sorry for that!

[yourownfree]

what 3 bolts? the ones holding the drum unit? dont force anything reply back

[vanlierdechad]

yes. its the drum bolts.

[yourownfree]

jam codes please

usually we never have to remove the drum unit to remove a jammed paper.Unless it goes up in the cleaning unit. If that happens the separation of the paper is not occurring. Sounds like you are going places you never been before. Drums are very expensive, all you have to do is drop a screw on it and its ruined. If you go to the control panel and press *(aditiional functions) button then let go then the 2 & 8 together and let go then the * again... a different screen should appear press copier then jam tells us what a couple of rows say. then press reset to go back to where you started. Why do you want to pull the drum unit out? Do you know there is a paper up there? Or is it jamming and you cant find any paper anywhere after it jams? Does it jam now since the copy is darker on one side more than the other?
Ok to remove the drum first you need to take out the developing unit, its easy. open the upper right door, then look and you will see a plate with one black screw towards the front side. remove the screw, push the plate toward the rear of machine slightly then it comes out. what you see now is the developing unit. Unplug all wires carefully before you you just go pulling it out. wires front, one big one rear. slide the unit out toward you. now remove the corona assy's primary and pre transfer. You will need to unplug some wires just above the drum unit. You will have to remove the gray looking covers first in order to get to these screws. the covers that stop you from seeing the drum unit, which i assume you have already done. remove the three screws, one on left,top, and right. one big long black screw holding center of drum in place. Make sure the transfer fixing frame assy is lowered and pulled out. at this point you can slide the drum unit out toward you. It will not fall because it is on a slide rail. Be careful with the drum. Cover the drum after you slide it out so you don't mess it up. Notice where you slid the drum unit out of inside the machine above where the drum was is a black mylar strip runs front to rear of machine. wipe it off to remove any possible fuzz, toner. The cleaning blade resides to the left of the drum unit you slid out. There is one screw on the front side that is silver and attached to a white piece of plastic. screw is in vertical. the white piece moves the drum blade toward and away from the drum, anyhow it has to come off. then the black screws on top of the cleaning unit. The more i type the more i think you might need the service manual. There are many steps to take and precautions. carefully remove the cleaning unit by lifting up at the rear of the cleaning unit and sliding toward the rear a little until the front shaft that you took the silver screw off of comes out. There you have it. look for paper in there, sometimes it happens. now you should replace the cleaning blade, the rubbery looking thing. If you don't have one, turn it around end for end. I even turn them over sometimes if necessary.Don't touch the cleaning blade directly with your fingers, or it leaves oil on it thats not good. dust the cleaning blade with drum powder from canon or use a clean rag to get a little toner from the auger area to put on the drum blade top portion.refit the cleaning blade assy in machine the same way it came out. what i do is slide it in place to where the shaft is back in the hole enough to put the white piece back on. Then turn the white piece by hand a little to move the drum blade away for the drum as i set the cl. unit back in place. then let go and tighten screws. don't overtighten screws on a copier they just need to be snug. when tight release the drum blade slightly away from the drum using the white piece lever, rotate drum by hand clockwise from drum front not surface area, as you rotate slowly, slowly release the drum blade toward the drum to where it barely touches the drum. The idea is to be able to rotate the drum with the drum blade fully engaged to the drum, meaning the cleaning blade is not hanging up on the drum surface. do not force it. keep trying over and over until you are able to do so. sometimes turning slightly counterclockwise a little then clockwise again helps coat the blade with toner. eventually you will get the idea. Once it turns smooth then slide everything back in and reinstall. best i can do at this time for help, as i need to go back to work.
Just be very careful around the drum, $2,000 dollars is a lot of money for a drum. giving the cleaning blade another surface to use might resolve your issue, then again you might have to pull all of this apart again and do it again, since sometimes its not always a 100% thing that it will work without streaking again. so you find another edge to use on the cleaning blade. Or new is better. Even then I have had problems. Good luck sorry i dont have diagrams to show you at this time.
Disclaimer: This info is only my interpretation and info only.should only be done by professionals. If any thing happens to the drum or any part of copier is sole responsibility of the tech.

[blackcat4866]

Let the pros handle this one.

If you're not a pro don't do this. That drum is truly $2000.00 all by itself, no exaggeration. Usually the main reason drums are damaged is by people, not anything mechanical. Pay the professional on this one, or at can cost you 10x more, again, no exaggeration,

[Canuck]

You do not want to go there....Like blackcat4866 said, that drum is 2 grand plus labour...call a tech..probably cleaning blade

[CanonHPTech]

An IR 8500 in a pay-for-print enviorment? I would call your local service company to give estimate and evaluate for contract for the future. If they are running this unit for customer prints and not internal print jobs, you are walking a fine line here to 'Expensiveville'. These machines can get real expensive, real quick, if they are in a pay-for-print enviorment/copy shop due to the fact that the image has to be good. Replacing wires and cleaning blades I would imagine are not crazy (still expect $300 minimum), but when you talk about a Fixing Assy. rebuild... there are at least (10) critical parts in there that should be swapped plus labor. If one of the Corona's has seen better days, expect at least a $100 for the part. Like the others said about the drum... you could put a downpayment on a car or a house. I didn't even get into the AP Kit... bottom line is, if you think you can charge your customers and make a constant profit on this machine and not pay for service or contract... this is not the machine.