IRC2380 colours out of sync

[Kings]

Hi Guys, Ive got an IRC2380 out there where the colour registration keeps going out of sync. After adjusting up the colour registration for each colour it lasts for about a week and then goes out of sync again giving a sort of 3D effect.
Anyone had this fault or got any ideas.
Cheers guys....

[blazebusiness]

Hi Guys, Ive got an IRC2380 out there where the colour registration keeps going out of sync. After adjusting up the colour registration for each colour it lasts for about a week and then goes out of sync again giving a sort of 3D effect.
Anyone had this fault or got any ideas.
Cheers guys....

I would start by checking the ITB for problems ....If the problem is not in that unit and is with the laser exposure you may need to replace the dc contoller board as the laser exposure system is mainly controlled by that board. I guess you could also try clearing the dc controller and input all the door label specs....I would try that before I went so far as replacing that board.

How many copies on that machine?

[Kings]

The machine has got about 30k on the clock from new....About 10k ago the ITB got shredded and we put a new belt assembly on it, but its been running fine and I cant see how the belt could cause this kind of problem

[teckat]

the machine has got about 30k on the clock from new....about 10k ago the itb got shredded and we put a new belt assembly on it, but its been running fine and i cant see how the belt could cause this kind of problem

read this pdf below

TP03-1.pdf

[mab]

Hi
i have got this for a long time and i remember that the problem was from the video controller try to deconnect it and clean it with special liquid for electonic product , if still the samthing change the video controller.
good luck

[SCREWTAPE]

read this pdf below

[ATTACH]6756[/ATTACH]

Hey Teckat good info but it seems like the pub is refering to the 3200. The poster is having trouble with a C2380

@Kings, check that ITB assy out and before clearing any ram, print out a P-Print so that you have back up sheet of the value settings.

[CanonSco]

As said , check the ITB.

I had colour mis reg on an early 3380. Turned out to be a bad/dirty connection on one of the Colour Displacement sensors on the ITB. was sensor UN15 for me , but there is another UN16 also. Cleaned both the sensor and the connection to cure.

The only other thing I have seen giving colour mis reg on these machines is the Drum Drive Assy. Again this was on an early machine and I went along with another engineer to give him some moral support and drink coffee.
If I remember correctly PG-6 Tests showed the colours out of reg in both directions. The drum drive is a little bit of a pig to remove though as everything else has to come out first.

Can you swap the ITB with another machine?

[Kings]

I have just got back from the service call and have got the test copy spot on by adjusting the Horizontal and vertical reg adjments.
After powering off and on again it was fine....I am sure this is gonna come back to haunt me as it has twice before for this problem...
Will keep you posted.....

[blazebusiness]

I have just got back from the service call and have got the test copy spot on by adjusting the Horizontal and vertical reg adjments.
After powering off and on again it was fine....I am sure this is gonna come back to haunt me as it has twice before for this problem...
Will keep you posted.....

Did you do that ram clear I suggested? Also, if you have replaced the belt on the ITB and now have this intermittent problem why don't you focus on the ITB assy and inspect / dissasemble it rather than just doing those adjustments? And - in reference to the techpub Teckat posted- the ITB is not that different on various Canon models. Review his pub and see if you can glean some info that might help you. I can't tell you how many times I have replaced a part as part of regular maintenance and ended up later with a problem in the assy I was working on. It happens to the best of us.

And if doing that adjustment didn't help you before and your problem returned ----why do you think it will help this time? Doing the same thing over and over and expecting a different result will get you nowhere. No offense intended & I wish you luck on this. Post back with the fix.

[MrB]

You can't do that PDF, as the laser Asm is one unit with 4 lasers in it on the iRC3380 range
Unlike the 3220, where it has 4 sep laser asms

[blazebusiness]

You can't do that PDF, as the laser Asm is one unit with 4 lasers in it on the iRC3380 range
Unlike the 3220, where it has 4 sep laser asms

That's understood already....thats why I spoke of the the ITB assy & not laser assy's and told him to glean what he can. Screwtape and I already expressed that there are differences between the model in the techpub and this unit. He was told to "review the pdf" not do all the procedures in the pdf. He can certainly clear the ram as described in the techpub and dissassemble and inspect the ITB.

[teckat]

Hey Teckat good info but it seems like the pub is refering to the 3200. The poster is having trouble with a C2380

@Kings, check that ITB assy out and before clearing any ram, print out a P-Print so that you have back up sheet of the value settings.

My fault / getting old / very old

[SCREWTAPE]

My fault / getting old / very old

Don't sweat it

The good intention was what mattered.

[teckat]

Hi Guys, Ive got an IRC2380 out there where the colour registration keeps going out of sync. After adjusting up the colour registration for each colour it lasts for about a week and then goes out of sync again giving a sort of 3D effect.
Anyone had this fault or got any ideas.
Cheers guys....

Check the ITB / Drum Drive Assembly
123.jpg

[Canuck]

i have seen cases where this problem appears after an ITB cleaner assembly has been replaced. # days later BLANK,ITB stalling. Solution: dust the cleaner blade with white blade lube. Couldnt believe it myself.Seen it cause color misreg problems also. Its quick,try it and definitely a RAM clear