Banding on CLC 3220.

[Ingranaggio_rotto]

I have a great problem on Canon CLC 3220: a costant banding to all density....
I changed the ITB unit, the motor of ITB unit and the relative gears, I cleaned the Laser Unit, I changed the belt that move the drums..... None solution.....
Tips ?
Thanks....

[Fer]

Can u please post an example of the printout? I don't realy understand "banding". Are those in feed or cross feed direction, what color? lines or streaks. In print area or white paper background?

[Ingranaggio_rotto]

Good morning....
For "banding" I intend lines perpendicular at the feed direction, dark lines, visibles in all color, and not on white sheet, with a thickness ranging from 2 and 3 mm, variable distance between them and which are repeated in the print: They are not fixed on the image....

[Eagle]

have u checked the drums? Its could be one of them or even all of them..
But as FER say "Can u please post an example of the printout" with out these example it will be harder to try to help u out..

[teckat]

Good morning....
For "banding" I intend lines perpendicular at the feed direction, dark lines, visibles in all color, and not on white sheet, with a thickness ranging from 2 and 3 mm, variable distance between them and which are repeated in the print: They are not fixed on the image....

inspect the entire HVT Assembly

[SCREWTAPE]

Why don't you try PG5 single color test pages to see which color is the problem.
Since you did not mention anything about replacing drums, have you replaced drums.

[Ingranaggio_rotto]

With the PG type 5 the problem it's visible in each color....
I changed the drums, but I have not resolve.....
And even changing the HVT the lines there are.

[teckat]

Good morning....
For "banding" I intend lines perpendicular at the feed direction, dark lines, visibles in all color, and not on white sheet, with a thickness ranging from 2 and 3 mm, variable distance between them and which are repeated in the print: They are not fixed on the image....

"perpendicular" Banding = Crossfeed = from front of printer to back of printer !!


1.u do not see any banding on PG5 - SINGLE COLOR v/
2. is banding on single sheet run/ multi-sheet run/full-color/ b&w/ prints and or copies/ using dadf/ ?????
what 3220 functions are in use during issue
3.post samples

4. have u checked for flat spot on fuser rollers/ ?
5. Check for proper tension being applied to the ITB from the Secondary Transfer R

[SCREWTAPE]

Post a image.
The last thing it could be is the main controller.
I know that's ironic but it seems like covered most of everything.

[Hyksos]

"perpendicular" Banding = Crossfeed = from front of printer to back of printer !!


1.u do not see any banding on PG5 - SINGLE COLOR v/
2. is banding on single sheet run/ multi-sheet run/full-color/ b&w/ prints and or copies/ using dadf/ ?????
what 3220 functions are in use during issue
3.post samples

4. have u checked for flat spot on fuser rollers/ ?
5. Check for proper tension being applied to the ITB from the Secondary Transfer R

OMG, I think that's our problem, I just posted a new thread here about vertical line (from back to front of the unit) here: http://www.copytechnet.com/forums/ca...ical-line.html

Our fuser is making weird noise like if it's shaking when it roll.... that mean it have a flat spot?? Can it make that kind of artifact? Can it be repaired?

And what should we do to prevent flat spot?

Thanks for your help

[mrfixit51]

remove and inspect the ITB assembly...

[teckat]

Remove fuser-check rotation of unit to look at rollers - may have a flat spot/ gear could be damaged/ bushing on end may have popped out

[Ingranaggio_rotto]

Yes, for "banding " I intend perpendicular lines, lines from the front of the machine (operator side) at rear of the machine.....
There are when the copier prints or copy, in black or colors....
When I stop the print operation I find the image on ITB with the problem, before the transfer action on sheet...

At soon I will show an image of the problem...

[Ingranaggio_rotto]

I installed a new ITB unit ! ! !

[Irish]

[IMG]file:///C:/DOCUME%7E1/Owner/LOCALS%7E1/Temp/moz-screenshot.png[/IMG]Check the spring loaded drive gears of the ITB for wear or a broken tooth .. located inside the R/H panel on the rear plate of the machine.. make sure you check the gear it meshes with that stays on the rear plate .. good luck