[Misc] Xerox DC260 Yellow Color Misregistration

[Guest]

Im having an issue with the yellow misregistering on the prints. I need some help to fix this problem. The yellow is out by a few millimeters. I tried a few things after reading some posts and tried to initialize IOT the yellow misregistered even worse than before. When I print in black the text is clear but the colors prints have a yellow ghosting effect. I attached an image of the start up sheet and the test patterns. When I run the Regi Measuring Cycle they all come up NG.

I have done the following:

-Cleaned the ROS
-Swap the entire IBT assembly including the belt
-Changed the MOB sensor
-replaced the drums
-swap developers and entered new values in the ATC Sensor setup.

I'm dont know what else I need to do in order to fix this. If someone can help me it would be much appreciated.

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[mickey singh]

Re: Xerox DC260 Yellow Color Misregistration

Did you change tanks?? You can swap tank positions to eliminate that, I dont think its tank anyway, but it could be drum drive motor, you can swap magenta, cyan and yellow drives with eeah other, my best guess is its the mcu pwb or iot driver pwb, theres two ribbon cables connecing them, you can swap em around to see if fault changes!

[Lee2475]

Re: Xerox DC260 Yellow Color Misregistration

I hate jobs like this could be list of things I would agree the MCU board could be at fault, Ill have alook and see if i can find out.

[Lee2475]

Re: Xerox DC260 Yellow Color Misregistration

If you have changed the the tanks and drums and other bits i think i would try the ros first.

[ha2288]

Re: Xerox DC260 Yellow Color Misregistration

I swap the 2 ribbon cables on the mcu pwb but it would give me a 094-322 error when I start up the machine. I put the cables back to its original place and the code is gone but still have the yellow registration issue.

I dont know what these tanks are. Can you please let me know where it is and I will get them replaced.

[mickey singh]

Re: Xerox DC260 Yellow Color Misregistration

Where in the world are you???

[InterfaceP]

Re: Xerox DC260 Yellow Color Misregistration

Please don't change the developer tanks. You're barking up the wrong tree.

Registration issues are related to the MOB sensor, Drum units and the IBT belt.

Remove Tray 5 then the left cover behind it. Reinstall Tray 5 without the left cover. You should be able to see the IBT belt (shiny black surface). Restart the unit and watch for the chevrons that are on the belt. Look for any discrepancies in the chevron shape or lack of them. Should be chevrons for every color. Also listen for the MOB sensor clicking as they open and close.

If the chevrons are damaged you may just need to replace the effected drum.

Plaese report ant findings.

Good Luck!

[mickey singh]

Re: Xerox DC260 Yellow Color Misregistration

I think hes already replaced the drums, mob sensor and ibt assy! So that would eliminate them,i came across this problem one before on a 700, and it was the mcu, i cant see it being the ros because it should throw the magenta out too, could also be nvm corruption, have you tried backing up nvm and initialize the machine?? Cost nothing and takes 5 mins to do?? Im pretty sure the machine looks for the yellow as the first point of registration before it looks at the rest!

[ha2288]

Re: Xerox DC260 Yellow Color Misregistration

Yes I replaced the drums, installed another mob sensor and the entire ibt.

How do you backup the nvm and initialize the machine.

[mickey singh]

Re: Xerox DC260 Yellow Color Misregistration

Do you have a pws workstation?

[InterfaceP]

Re: Xerox DC260 Yellow Color Misregistration

Log into CE mode then do a:

Registration Control Setup cycle
Registration Control Sensor Check Cycle
Registration Measurement Cycle

Should be "OK" any "NG" are issues

Then:
Look at at recent faults, should be some "089" codes.

Please report your findings

[mickey singh]

Re: Xerox DC260 Yellow Color Misregistration

Hes already done that! As just read you already initialized it! Are you in the uk?????

[InterfaceP]

Re: Xerox DC260 Yellow Color Misregistration

Hes already done that! As just read you already initialized it! Are you in the uk?????

I'll let you take it.

[mickey singh]

Re: Xerox DC260 Yellow Color Misregistration

Haha,i dont want it, just want to help out a fellow colleague, if he fixes it he will learn a bit more about the fault and how the machine works! If hes round the corner ill be more than happy to help a fellow technician!

[ha2288]

Re: Xerox DC260 Yellow Color Misregistration

I am in Canada.

I dont have PWS workstation. Do I need it in order to initialize and backup the machine?