Question about Xerox Phaser 7400/DX Laser Printer

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Phazer 7400 Black Imaging Unit Error

Due to an error on the printer screen, I've recently replaced the black imaging unit on my Phazer 7400 but the error message on the screen won't go away. I've restarted multiple times, tried another black imaging unit, but the error persists. Thoughts?

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1 Answer

I have tried using a new fuse to cause an imaging unit to reset on a Phaser 7400 but the fuse will not blow.


If the unit is remanufactured or if you know how, you will have to disassembly the imaging unit and replace the fuser that blowns or simply just solder it. http://www.uninetimaging.com/downloads/technical/xerox/english/Xerox_Phaser_7400_Reman_Eng.pdf
Graphic 27.

Mar 30, 2014 | Xerox Phaser 7400/DXF Laser Printer

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Xerox Phaser 7400 U28 error message


The Service manual says:


The Drum Phase Sensor for the named Imaging Unit indicates that the drum is out of position.


Initial Actions:

Reseat the indicated Imaging Unit.
Cycle the printer's power.

after these steps it gets a lot more detailed and you would need to be an experienced tech to understand everything and follow the steps within a timely manner, if reseating the cyan imaging unit doesn't fix the problem, then you will have to call for service.

Hope that helps

Christopher

May 20, 2012 | Xerox Phaser 7400/N Printer

1 Answer

Xerox Phaser Printer has an error message cyan imaging defected, the unit was replaced with a new one, still getting message


There is a list of different parts that can be causing this error.

The first one is if its not seated properly. You can take it out and put it back in to make sure it is seated. Having bought a new one means that this is the only simple solution to this problem.

Here are the different parts that may need to be replaced as per the service manual states:

the imaging unit sensor board
the CTG0 harness
the engine control board
imaging unit motor
the lift uplink
the motor driver board
the low voltage power supply

!! that't a lot of possibilities and there are a series of electrical and mechanical tests that must be performed. You will have to call for service. Unless its seated incorrectly.

May 20, 2012 | Xerox Phaser 7400/N Printer

1 Answer

Xerox phaser 7400 giving error - replace imaging unit- what solution now?


Did it specify a color you should replace? The machine has 4 image units (CMYK) each with a different part#. Replacing them is easy, no tools required. Open the top door, lift out the entire image unit, move the toner over to the new unit, and lower the image unit. Here are the part #'s for the 7400 for each color. Iteminc.com has these online.
C - 108R00647
M - 108R00648
Y - 108R00649
K - 108R00650
Good luck, hope this helps. Thanks for using FixYa!

Aug 05, 2011 | Xerox Phaser 6350/YDT Laser Printer

1 Answer

What is error code 941 on a Xerox Phaser 7400?


www.support.xerox.com -phaser 7400- support -fault code-941 says cyan or magenta toner failure, but the solution says to
1. remove & reinsert the cyan or magenta imaging units.
2. replace imaging units .
check out the site to see if helpful

Jul 01, 2010 | Xerox Phaser 7400DN Laser Printer

3 Answers

Xerox phaser 7400 replaced yellow toner, but still getting replace toner error. I've reseated it twice, reseated the imagining unit and tried turning it off.


You can try do a NVRAM reset. If after that you still have the error message then I would tell you to contact the Xerox team as you might have a wrong consumable (defected/wrong CRUM) information.
NVRAM reset: http://www.support.xerox.com/SRVS/CGI-BIN/WEBCGI.EXE?St=36,E=0000000002092637520,K=9394,Sxi=5,Case=obj(3085)

May 16, 2010 | Xerox Phaser 7400/N Printer

2 Answers

Technical Black Imaging Unit Replaced,Error message still shows


These units are automatically reset with a fuse. When you put the imaging unit in it will completes a connection which resets the count then simultaniously blows the fuse. Sometimes the fuse blows before the reset, which is what it sounds like happened here. The machine should print normally but the error will persist until the unit is replaced with a new one. Is the the imaging unit an OEM unit or remanufactured? Whoever you got the unit from should replace it as defective free of charge. If it is OEM you might have to go through Xerox to get it replaced. I don't know if the Big Box stores will.

Dec 04, 2008 | Xerox Phaser 7300DN Laser Printer

2 Answers

PRINTER ERROR


There is a tiny little magnet that falls off and/or has reportedly been put on backwards (fell off is what happened to me) on the auger assembly. It's near the black auger chute on the end of a shaft. It's tiny--a little bigger than a grain of rice. I had to replace the auger shaft assembly but if you can find the magnet, you can super glue it back on.

Apr 03, 2007 | Xerox Phaser 7400/DXF Laser Printer

1 Answer

Black Imaging Unit


If the machine calls for a new unit, a new not used cartridge must be installed to clear the message

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