Xerox Phaser 6120 registration problem

Try these links:

http://www.support.xerox.com/SRVS/CGI-BIN/WEBCGI.EXE?St=92,E=0000000005967778234,K=7072,Sxi=5,Case=obj(3188)

http://www.support.xerox.com/SRVS/CGI-BIN/WEBCGI.EXE?St=92,E=0000000005967778234,K=7072,Sxi=5,Case=obj(2306)

Image unit is used up, please replace 108R00691 Phaser 6120 Imaging Unit up to 20,000 pages black/up to 10,000 pages color

Try to replace the color drum/toner cartridges.

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_7148ad2a373711a3

Anything over 100 dollars for this unit is too much. You can purchase a new one for $450, there is no need to spend the ridiculous amount on the fuser.

You have to go to printer properties and look for "optional functions" or something to that effect, and check the option "duplexing unit" or similar.
By default the computer does not know, that your printer has duplex capabilities.

what singal black toner use only i no want color
toner use

I know the phaser 7400, 7700, 7750 and 7760 are usable with transfer paper, as well as the larger platforms such as the 250.
I have thought that the 6120 can be used for that. It has a fuser, and most every product that uses a fusing type ink should be able to use transfer paper.

I am running this one and I perplexed by what your saying.
Although I will offer some ideas.
I am running through my mind why the label would only affect the colors.
So some of what I am saying here is thinking.
That is a carousel color printer, and the label is confusing me, mainly since you said black is fine.
I can understand one color being off with the third party toners, but not all 3.
What you are having in some way has to be a contact issue, as if a piece of the label would up on a ground contact.
I would first try removing the transfer assembly, all the toners and the imaging unit, and carefully inspect for another piece of label.
Look at all the metal contacts on the cartridges and internally to the machine, see if one is dirty or somehow bent.
Go into you menus and run a color calibration series, and also do a memory clear, and NVM/NVRAM reset. But before you do any resets print out a configuration page to confirm your addressing if your using an Ethernet cable.
USB wont make a difference.
The reason I suggest the resets and calibrations is the label could have caused some high voltage arching and therefore corruption.
But, then again, why wouldn't that affect black and white. What does black graphics look like?
This one is making my mind spin.
Calibration makes sense because you say you have wrong color substitution, yet doesn't address streaky appearance That to me suggests a bad ground contact, But why only bad in color LOL.Ahhhh you have me nutty with this one. LOL.
I keep migrating back to software corruption or mis calibration.
Let me know if this makes sense or helps. Reading your problem makes me want to see this one.
Anyhow let me know if my rambling, which is rare helps.

There is a flag sensor on the registration assembly that is possibly broken.