Canon IR C3100

[mrjobusa]

Hi Guys. these machine is streaking alot. i tried everything in the book. need help.

[logonjim]

ir3100

The streaks you refer to are prob caused by the TB blade .have a look at the drum life and change the TB blade this is one reason for streaks. mind you one can also get streakers when they want to make a name for themselves lol

[Oze]

There's an issue that i've noticed recently with iRC3100 transfer roller(the one in the door not the itb).
The roller butts up against the itb assembly and there are two cams that move from side to side which in turn are meant to lift the roller on and off the itb sheet as it rotates.
Lately I've seen instances of that transfer roller being absolutely covered in toner...so much so that it moves back onto the itb sheet and piles up inside the drum unit.
The drum cleaning system is just a roller brush that runs against the drum constantly.
The brush get full of toner and dumps back onto the drum surface...onto the itb sheet and of course...then back onto the transfer roller and so the cycle goes on til there are hundreds of lines on the page.
It looks like a leaking drum blade at first glance.
You can pull the drum out(if it's only reasonably new) and vacuum the cleaning brush,clean the primary roller,replace the transfer roller and it's good as a quick fix...HOWEVER...there are two clutches that operate the cams on the itb assembly to activate the transfer roller and you need to change those two clutches if the issue returns.

[Irish]

The only good 3100 .. Is a dead 3100.............................................

[mrjobusa]

Hi Thank you. I will look at the roller.

[Canuck]

Is streak in center of LTR....if so ITB cleaner blade...lots of cleaning itb issues on 3100. There is a modified cleaner assembly...i shim under the cleaning blade holder

[smiley]

There's an issue that i've noticed recently with iRC3100 transfer roller(the one in the door not the itb).
The roller butts up against the itb assembly and there are two cams that move from side to side which in turn are meant to lift the roller on and off the itb sheet as it rotates.
Lately I've seen instances of that transfer roller being absolutely covered in toner...so much so that it moves back onto the itb sheet and piles up inside the drum unit.
The drum cleaning system is just a roller brush that runs against the drum constantly.
The brush get full of toner and dumps back onto the drum surface...onto the itb sheet and of course...then back onto the transfer roller and so the cycle goes on til there are hundreds of lines on the page.
It looks like a leaking drum blade at first glance.
You can pull the drum out(if it's only reasonably new) and vacuum the cleaning brush,clean the primary roller,replace the transfer roller and it's good as a quick fix...HOWEVER...there are two clutches that operate the cams on the itb assembly to activate the transfer roller and you need to change those two clutches if the issue returns.

hi oze thanks for this info. it healps me a lot. i vacuum the brush and cleane the charge rollers then it works good after a few copies the lines got back.then clean it again and again. but there are no toners in trasfer roller on the door side.the drum life is 60%. can you help me please.

[Oze]

Even though the drum life is only 60%,I have still seen this issue ruin the drum.
The lines burn into the drum surface and no amount of cleaning will fix it...the only thing that DOES is a new drum.
Do you have another drum to test?
If so put that drum into the machine and see if the issue goes away.
If you STILL have the same issue with a different drum then it is most likely an ITB issue.
In which case you need to remove the belt..wash the main drive roller and sub main....replace the cleaning blade or the whole cleaning assembly if you have one and replace the transfer belt if it's due or has visible marking on it.

[smiley]

thanks oze ill try to change the drum assy. and i let you know if that solve the problem.thanks

[Oze]

No problem Smiley..have a good weekend m8

[Canuck]

Pay close attention to ITB cleaner assebly....3100's are notorious for ITB streaks...if the streak is brown colored and in the center of the page it is probably ITB cleaning. Been there a thousand times!! New cleaner assembly has adjustable cleaning blade pressure. Loosen ITB assembly mounting screws(NOT CLEANER),pinch the upper rear corner near delivery area and tighten screw, then tighten front screw, then other screws on right hand side. Shim under the center of cleaner blade(folded paper). I have actually reformed the metal blade. Mount the cleaner assembly now. To verify it is ITB remove delivery tray and you will see the ITB. Make a full color copy. You will see colors added layer by layer. When copy is complete look at ITB...you will probably see a streak on it.. Run 5 in a row full color. If streak on belt after copies, ITB cleaning...if not then suspect drum. I've had drum streaks at 80% drum life. Like I said..THESE MACHINES ARE FAMOUS FOR ITB CLEANER STREAKS

[Oze]

I think that they're referring to fine streaks that blanket the page from top to bottom...it looks like a drum cleaning blade leaking.
This issue began on the 3100 series about 8 months ago...all of a sudden we began having these cleaning failures.
You'd go to the machine..commonly the drum life would be anywhere from 60% to 80% but never 100%.
You pull the drum out...follow the cleaning steps that I mentioned an earlier post and refit the drum.
Usually that's enough to get the drum to life...but in a few cases the drum has been burned and only fitting a new drum will fix the issue.
Like I said...I began noting that this issue started around 8 months ago.

[smiley]

hi guys.i got 80% of drum life then got un even copy and i fund out that on the side of light copy the toner stock on the cleaning brush and cause a lot of steak on the copy when its full.im wondering if the itb or the drum cause this un even copy. any one in counter this before?please healp me.

[Oze]

Disassemble the drum unit....take the drum off and safely store it...remove and wash the primary roller....vacuum the cleaning brush and inside the w/t storing area of the drum....reassemble the drum...clean or replace the secondary transfer roller(the one that sits in the right hand side door) and see if the copy quality improves.

[smiley]

hi oze thanks for the reply. i change the drum assy. by new oem one. then still the copy is uneven. then i go to trasfer unit and fund out that the trasfer roller is coated of toner then i clean the transfer roller and the trasfer belt.it solves the problem of uneven copy and the steaks line.thanks for all the replays. by the way do you part# of trasfer roller in itb assy. and also in yellow cover of fixing unit of irc3100.please