Xerox 700 Cyan Banding

PixelXpress

New member
Hi Guys.
I am new here and after hours of searching online and on the forum to see if I could figure this issue out, I am finally making a post.
Any help would be greatly appreciated.

I have a Xerox DCP 700i and I am having an issue with banding on the cyan. See photo attached.
The machine has only 215k clicks total, and is overall in great shape and has been taken care of. I had it moved here from Toronto and I am willing to bet that that is what caused this problem.
So far, I have tried swapping drums, swapping fuser, swapping IBT all to no avail. The one band still appears on the cyan in the same spot.
I did briefly take the drawers out and gave the ROS glass windows a quick wipe from the bottom and nothing changed again.

I am having a hard time finding a good xerox tech in my area (xerox canada wont touch the machine because its out of service contract) so that has added to my frustrations.

I am very knowledgeable about technology and quite handy so I have mostly been doing my own maintenance. This issue, however, is something that I just haven't been able to solve.
I want to say its either a ROS issue, or a developer issue, but I am not an expert at either of those parts so I dont know what those problems normally look like. Perhaps its a bad wiper or something on the developer housing? IDK.
As for the ROS... I do hear that sometimes crap can get into the other side of the glass, where the ROS has to be totally removed, cracked open, and the glass taken out and cleaned (unless I can get the window out from the bottom)
I feel like cracking open a sealed unit, that was probably assembled in a clean room, is only going to cause more issues.

Help... Please...
 

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cqb1988

Active member
print 100% cyan in service mode, if banding still there that's dev, usually dirty ros only affect halftone. looks like something caught in dev unit, it should be easy to clean.
 

PixelXpress

New member
print 100% cyan in service mode, if banding still there that's dev, usually dirty ros only affect halftone. looks like something caught in dev unit, it should be easy to clean.
Thanks for the suggestion.
can you please tell me how to print solid cyan in service mode?

if it still shows up, what would be the next step (how to “clean” the developer, do I just rotate and wipe off the mag roller? Could it be a wiper or something in there?)
 

DYP

Well-known member
If it is something stuck in the developer housing you will see it when you turn the developer roll. If you see it then tear a small hook in a price of paper and see if you can fish the little goober out.
 

PixelXpress

New member
If it is something stuck in the developer housing you will see it when you turn the developer roll. If you see it then tear a small hook in a price of paper and see if you can fish the little goober out.

I checked the developer roll again, and I did not see any "lines"
I took the screws out and took the cover off of the housing, and at that point I was able to see that there WAS a line, it was just covered up, and by the time it got to the portion that is visible with the cover on, it looked "normal"
Anyway. Took a piece of paper and slid it in and out of there to dislodge whatever was causing it, and the banding is GONE.
THANK YOU ALL!!

Now to find out why the output roller shaft on my finisher is squeaking....
 

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