PR Belt IB-OB Hot area

Stiv

Senior Member
Joined
2010
Posts
292
Geo
Michigan, USA
I just had another PR Belt go "bad" on me. The first time I had a hot area, about 2" wide running IB to OB, that would show up on every 5th 12x18 print. PR Belt, right?
The area even had a mark/shadow that was the shape of the OB stripper finger. Weird, yes?
I just had another belt do the same thing but I don't have the stripper finger mark/shadow.
The iGen sat all weekend, powered off, and the mark showed up 1st thing this morning. I did my HSFI's but I don't take very long and there is no window or really bright lights near the iGen.
So how is this hot area getting burned into the belt?
 
  • The 1st time it happened it could have been a dicor wire that blew, IDK. That finger was burned right into the belt.
    The 2nd time the iGen sat for 3 days and I think the PR belt got fried. You would think that the iGen could spin the belt every now and then just to keep it fresh.
     
    Yeah. I've asked it to do several things on its own, but never seems to listen to me either. ;-)

    It sounds like something was shorting out for sure. I've had issues with wire mods getting fried and a dicor wire too. It only happens when I run the blender & the hair dryer at the same time, tho.
     
    I have had this happen many times. According to Xerox it is a known problem and the only fix at this time is to change the belt. It may be caused by Amines in the air caused by your humidifier, that uses a chemical to inhibit rust in the pipes. At least that is Xerox's story and they are sticking to it.
     
    I think of the iGen as not having this problem.
    But your xerox tech's wouldn't know much about this.
    Because they mostly work on low volume new printers and have unlimited parts.
    This is mostlikly ozone deletion from the dicors. The reason I say its not common problem is the ozone blower runs all the time on iGens. My guess would be the holes where the dicors plugin are stopped up. Mostlikly the lower dicors say transfer or detack.
     
    Yes the Igen4 is very problematic. I just had belts get hot spots over the weekend. This is the second time this has happened.
    What a waste yet the techs always have some BS answer on why this happens. And if you ask a different tech you get a different answer.
    They replied that the cpuck is supposed to fix this issue after the job begins to run. That was BS to. I noticed the burn is camouflaged when running
    images with a lot of variation with color. However when it comes to a solid it's game over you need to replace the belt. With my experience with the Igen
    is that is is one big problem one after another. If it's not the belt it's the fuser or fuser assembly. And getting a stright answer from the techs is like believing in Santa clause. My personal opinion about the Igen4 is that it has many issues and not even the tech's really know what's going on. However they are quick to point the finger at the operator as a scape goat. Xerox knows they produce an unreliable machine but they will never admit it. They usually blame the operator the operator knows it's the machine. So it's a cat and mouse game that gets really old and creates a lot of grey hairs. Honestly I'm tired of it. The Igen when running correctly creates a nice print the only problem is keeping it there.
     
    Try checking the tubes that remove ozone from the dicors. It could be ozone deletion.
     
    This is mostlikly ozone deletion from the dicors. The reason I say its not common problem is the ozone blower runs all the time on iGens. My guess would be the holes where the dicors plugin are stopped up. Mostlikly the lower dicors say transfer or detack.
    .
    That is what causes PR belt "burn". iGen Tech is correct. I have seen this problem on many production Xerox printers when they haven't been properly maintained
     
    That is what causes PR belt "burn". iGen Tech is correct. I have seen this problem on many production Xerox printers when they haven't been properly maintained

    Okay I will look into this. How sad I must get my answers from a forum and not the tech's. if your answer is correct I will chalk this up to another
    strike against Xerox and there service and a lack of maintaining the equipment. Like I said one problem after another on these. Thanks. However checking tubes trouble shooting ETC. Is not something the operator is supposed to do. Don't get me wrong if there is something that the operator can do
    to help production they should do it as a good employee. However operators when busy do not have time to play Igen tech and relieve Xerox from their responsibilities. Xerox gets paid 10K a month for service contracts per machine. It's about time they started to earn there money.
     
    when you guys say "burn", do you mean dark spot? like its over-exposed....from a bad charge?
     
    Well In my case it is just like Stiv's opening thread. It sat over the weekend with brand new PR belts may I ad. Fine on Friday
    bad on Monday morning. The burn or flaw shows up every 5th sheet on a 12x18 or 11x17. It shows with a heavy magenta
    cast from IB to OB about 2 inches thick. Maintenance on these machines is taken very seriously. These are maintened internally
    very well. The way I see it is less maintenance and attention to detail more problems and headaches. Who wants those?
    So internally I know it is not something that was neglected. This happened on two machines that were running well the Friday before.
    It's weird how one day the run fine and the next day there is something wrong.
     
    hmmm never experienced this one. <knocks on wood>
     
    I spoke with an analyst about this. I asked if the belt could be "flat-spotted" from sitting too long. He said it could be possible that the belt is retaining a shape until it is warmed up. Perhaps at the top where the belt takes a big bend. He wanted me to try an figure out where the bulge or flat spot was at. Yeah, right.
    So my solution was to print jobs that were mostly text until the belt warmed up and smoothed out, or run 200 sheets of developer purge. Both worked.
     
    I spoke with an analyst about this. I asked if the belt could be "flat-spotted" from sitting too long. He said it could be possible that the belt is retaining a shape until it is warmed up. Perhaps at the top where the belt takes a big bend. He wanted me to try an figure out where the bulge or flat spot was at. Yeah, right.
    So my solution was to print jobs that were mostly text until the belt warmed up and smoothed out, or run 200 sheets of developer purge. Both worked.

    Awesome thanks for the tip Stiv. I'll try this. It's funny how he wanted you to do his job. This doesn't surprise me though.
     
    Possible fix

    Okay I have an update on this. According to the Igen specialist who I trust over all other techs said this is caused by a part that corresponds with your software. In the front top left door where the toner is there are blocks of numbers this has something to do with what your current configuration is. In my case it was #408 which is not shaded on all my machines. (We run Igen 4's) This apparently has something to do with LED lights that turn on while the machine is on idle. If the machine sits long enough these LED lights will burn the belt. The lights are located close to the ATA. He has ordered some parts for all machines and may have to do a software update as well. he says this will fix the problem and turn the LED's off when it idles. he also said if needed until this is fixed cracking a door will cause these lights not to turn on over night or over the weekend.

    I will update this once it is completed on whether or not this fixed the issue.
     
    But who wouldnt shut down a IGEN if it has to sit idle a whole weekend? i mean, 5k w just in stand-by?

    Im told to shut off both our IGENs every friday
     
    LOL The tech's here say to leave your Igen running always that shutting it down then turning it back on can cause problems. This
    is the only thing they agree on universally but I gues not if you are asking a tech from Denmark.
     
  • Okay I will look into this. How sad I must get my answers from a forum and not the tech's. if your answer is correct I will chalk this up to another
    strike against Xerox and there service and a lack of maintaining the equipment. Like I said one problem after another on these. Thanks. However checking tubes trouble shooting ETC. Is not something the operator is supposed to do. Don't get me wrong if there is something that the operator can do
    to help production they should do it as a good employee. However operators when busy do not have time to play Igen tech and relieve Xerox from their responsibilities. Xerox gets paid 10K a month for service contracts per machine. It's about time they started to earn there money.
    I think with any machine a good pressman will have to do some troubleshooting too. The pressman knows the machine best and all the ins and outs.
     
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