iR C3220 full auto gradation adjustment problem

[mrfixit51]

To add to what the other guys have offered,,, initiate an auto gradation on another machine, and compare the page from the working copier to an auto gradation page from your problem child to get an idea where the problem lies. You can "candle" the prints to see what the displacement is all about. be sure to label the good one to eliminate confusion later...

[sgcopiertech]

ok! here is the fix=
your test print from auto gradation registration is off a bit/ look at that print ,the CCD must read the correct pattern position from it =could be cross-feed or paper feed issue/if that auto gradation print image is shifted it wont scan right ,check if your ITB assembly belt is probably shifting a bit / check that Grid test print> PG6

also try this= move the test print down a little from top of glass/see what happens

I already checked the grid test, and the print alignment was ok.
I also tried moving my test print up / down / left / right on the top glass little by little
just to check if it's really something about the alignment.
still got error

i agree with teckat.try to do a pg print type 10 and look if there is a dispacement in colors.it happens to me many times i try to auto grad in the machine that has acolor displacement problem.try to clean your itb.use citrus oil.it realy works.

type 10? isn't this for testing color density?

To add to what the other guys have offered,,, initiate an auto gradation on another machine, and compare the page from the working copier to an auto gradation page from your problem child to get an idea where the problem lies. You can "candle" the prints to see what the displacement is all about. be sure to label the good one to eliminate confusion later...

I compared the two test page, and alignment was not with each other was not that perfect (only little bit) what I did was, I tried the test page from the ok machine and use it for the auto gradation scanning. guess what...still failed

I am thinking of replacing the CCD later...
still open for suggestions
really thanks!

[anothertech]

Got this from Canon Navi,

Problem :
When trying to run the Auto gradation adjustment the display repeatedly states " reposition the original".


Solution :
In this instance after the Reader controller and the IF board had been replaced and the problem still existed replacing the ribbon cable (FH2-6983-000) that connects the two boards fixed the problem.

[teckat]

I already checked the grid test, and the print alignment was ok.
I also tried moving my test print up / down / left / right on the top glass little by little
just to check if it's really something about the alignment.
still got error



type 10? isn't this for testing color density?



I compared the two test page, and alignment was not with each other was not that perfect (only little bit) what I did was, I tried the test page from the ok machine and use it for the auto gradation scanning. guess what...still failed

I am thinking of replacing the CCD later...
still open for suggestions
really thanks!

here are two stupid questions ??
did u look to see if your lamp is staying on through the test scan ?
is the scanner moving forward ??

do u have an image pass on this machine/
if so have u tried a calibration from Firey/w Kodak Grey scale ?

[teckat]

I already checked the grid test, and the print alignment was ok.
I also tried moving my test print up / down / left / right on the top glass little by little
just to check if it's really something about the alignment.
still got error



type 10? isn't this for testing color density?



I compared the two test page, and alignment was not with each other was not that perfect (only little bit) what I did was, I tried the test page from the ok machine and use it for the auto gradation scanning. guess what...still failed

I am thinking of replacing the CCD later...
still open for suggestions
really thanks!

just to add why would replace the CCD/ if you can print off the glass with no errors and no CQ issues ?

[SCREWTAPE]

If you performed a CCD adjust and it did not fail with a NG!, then your CCD is ok.
If your having registration problems with the copier that can't perform the auto gradation,
Then that would be the problem. If your PG6 is not uniform perfectly then that's going to be a issue.
I would suggest to attend to the registration issue first.

[teckat]

SCREWTAPE/ do u think he checked to see if lamp or scanner is moving ???

[SCREWTAPE]

????

[sgcopiertech]

Got this from Canon Navi,
Solution :
In this instance after the Reader controller and the IF board had been replaced and the problem still existed replacing the ribbon cable (FH2-6983-000) that connects the two boards fixed the problem.

I will keep you posted, thanks for the suggestions

here are two stupid questions ??
did u look to see if your lamp is staying on through the test scan ?
is the scanner moving forward ??

do u have an image pass on this machine/
if so have u tried a calibration from Firey/w Kodak Grey scale ?

yes lamp is ok and moving
the machine doesn't have image pass.

just to add why would replace the CCD/ if you can print off the glass with no errors and no CQ issues ?

If you performed a CCD adjust and it did not fail with a NG!, then your CCD is ok.
If your having registration problems with the copier that can't perform the auto gradation,
Then that would be the problem. If your PG6 is not uniform perfectly then that's going to be a issue.
I would suggest to attend to the registration issue first.

well, I've got experienced on this machine where as when checking the laser it says ok
but ends up being the the culprit, so I was just wondering if it's the same case with the
CCD or Reader PCB.

PG6 alignment is ok

(problem machine) auto gradation test print alignment compared with (ok machine) auto gradation test print is also ok.

thanks again!

[SCREWTAPE]

Your reader controller pcb maintains your ADJ-XY values.
If your CCD adjust did not fail, I would have to say at this point..
Try replacing the reader controller PCB. Keep us posted.