Color Laserjet 3600n Calibration Issue

[The-Peanut]

Hp Color Laserjet 3600n

i'm having a problem with the above machine where as the cyan is out of calibration by 2mm from the other colours after painfully waiting for it to do a calibration on warm up i've tried the following;

replace the drum unit
compress and clean machine
swop the yellow and cyan drive motors with each other
looked at it for a while
and scratch my head

i noticed the drum units get pushed out against the transfer belt i wonder if that could be the issue

any1 came accross this b4

Cheers
John

[Luther]

Clean the laser unit, magenta is on the bottom and the laser in that machine has been a problem mostly with magenta,also clean the misregistrtion sensor..........if you need more info private message me

[ExOceMan]

I have seen these machines have timing problems. Also there are some cams located behind the cartridges that will cause them to print out of sync. The plastic cams break rather easily.

[The-Peanut]

I have seen these machines have timing problems. Also there are some cams located behind the cartridges that will cause them to print out of sync. The plastic cams break rather easily.

yeh i noticed those cams which push out the drum units, but they look ok, i was wondering whether to dig further and see how they r driven

cheers

[The-Peanut]

Clean the laser unit, magenta is on the bottom and the laser in that machine has been a problem mostly with magenta,also clean the misregistrtion sensor..........if you need more info private message me

cheers will have a look at that

[ExOceMan]

Do you know if any parts have been changed on the machine recently? There are some timing gears that need to be aligned specifically to make the colors line-up.

[The-Peanut]

Do you know if any parts have been changed on the machine recently? There are some timing gears that need to be aligned specifically to make the colors line-up.

the customer mentioned to me that the machine was ok until they replaced the megenta drum, not sure if that would cause cyan issues though, apart from that the machine has not been touched for a while

[ExOceMan]

All of the color carts are interconnected via those cam levers so I think there is some potential to have an issue created by the magenta cartridge.

[The-Peanut]

All of the color carts are interconnected via those cam levers so I think there is some potential to have an issue created by the magenta cartridge.

ok cheers i'll ask the user if he's got the old megenta cartridge and try that 1st

thanks for your info

John

[prntrfxr]

once you've tried everything else you might want to try dc controller. I had one do that to me once, but usually its the misregistration sensor or the cartridge.