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hello all, I own a Xerox 7545 and I replaced the whole IBT unit after some other trouble with the machine.
Everything prints clean now, but I have a slight misregistration issue on the yellow & I cleaned the sensor and went into service mode – dc673 reads not Ok on registration sensor...
How can I adjust this issue? thank you!
after replacing ITB.. did you run color reg?Originally Posted by hrtl
Yes & color registration is slightly off after running it... the yellow sticks out by a hair. I may just try a manual adjustment, although I have no idea how this works exactly.
no manual adjustment on this machine.
Clean printheads > print solid fill each colour to make sure no white stripes or anything, if white lines replace dev tank of that colour > clean MOB ADC sensor > power off machine and boot up with front door open, then close once booted to force a reg check.
Now test.
If the above fails then initialize the print engine NVM twice in diagnostics, exit and reboot.
Test again.
If all that fails replce the MOB ADC sensor assembly
Test again.
If that fails replace the MCU PWB.
I’d also try swapping the yellow drum with another , I’ve seen a drum cause this as well.
If you replaced the entire IBT move the pressure release lever from the transit position? They come out of the factory with the belt pressure slightly off to avoid kinks in the belt, you move the position of the lever with one screw to the service position. Usually you can get MOB misfeeds as well
The MOB sensor can only align the colors if it can "see" them. Are any of the color solids are light?
Thank you for all the suggestions... This is a great learning experience.
NVM reset didn't do much of anything anything, nor did force registration.
I tried swapping the yellow drum to no avail, prior to this whole debacle.
BUT I put the old IBT belt unit back in & registration is spot on... something tells me that something is wrong physically with the new IBT unit. Now, on to finding out what that may be.
I'm tempted to swap out just the belt, as the old one has solvent stains on it.
I took the whole thing off...
Problem solved! Thank you all for the valuable input!
The new transfer belt on the old unit works great & on the new IBT unit one of the thinner rollers seems dislodged – it looks like one of the plastic pieces got wiggled out of position during shipping. Don't we just love how this happens sometimes?
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