Question about HP LaserJet 4600dn Color Printer

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HP 4600 has magenta and cyan marks on back of printouts.

I have changed the MP settings.
I have replaced the Magenta toner 3 times now.
I have replaced the DC Controller with 6D Printer Number.
I have swapped the Image Kit with another 4600 printer and it comes back.
No problems with the front side of printouts only back.
Any ideas?

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YOU NEED TO REMOVE THE CARTRAGES AND THEN UNPLUG THE PRINTER. CLEAN THE INSIDE WITH RUBBING ALCOHOL AND SOME Q-TIPS.YOU HAVE EXCESS INK ON THE INSIDE OF PRINTER. THIS IS WHY IT IS GETTING ON THE BACK SIDE OF YOUR PAPER. HAPPY NEW YEAR TO YOU.

Posted on Jan 06, 2009

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Posted on Jan 02, 2017

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1 Answer

Cyan ATC sensor failure. Error code 14. I replaced developer and did ATC sensor setup. Still having issue.


Yellow ATC Sensor Failure,Code12
Magenta ATC Sensor Failure,Code13
Cyan ATC Sensor Failure,Code14
The ATC Sensor detects an insufficient amount of developer.

Note
If this failure reoccurs three times successively, an Engine NVRAM value is set preventing further printer use until the Clear Tech Rep Fault (see pg.6-20) is performed.

Troubleshooting Procedure
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Magenta=P/J130 Cyan=P/J131
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3.Is the voltage between+1 and
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Go to step7.
7
1.Remove the Imaging Unit Plate cover.
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8
Run approximately 10 pages of the solid fill full-page prints for this color to ensure the error is cleared.


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1 Answer

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Since you have Cyan toner in places where it should not be then the only possible cause is a defective Cyan Toner cartridge. I worked on one just last week where the customer complained about Magenta toner on their prints. I also noticed Magenta toner on the Transfer Belt just as you see Cyan toner on the Transfer Belt. I replaced the Magenta Toner Cartridge and everything cleared up nicely. The Transfer Belt Unit can also cause similar problems but it would not be ONLY one color like Cyan. It would be a mixture of all colors. My bet is replace the Cyan toner and you will be fine. If you have an old empty one just shake it up a bit and try it as well. This might allow you to verify before buying a new cartridge.
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2 Answers

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I had the same problem and found that one of the toner cartridges must have not been seated properly. I removed the black toner cartridge and re-fitted it. The printer now works fine again with no errors. 17H is a code relating to a fault in the rotation ......... possibly one or more toner cartridges need checking. Use the menu on the printer to turn it to the appropriate position (i.e. engine menu then select replacement of whichever toner you are checking).
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