Question about Xerox Phaser 7400DN Laser Printer

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Black Imaging Unit

I have replaced the black imaging unit in a phaser 7400 with another one which wasn't brand new. The printer doesn't recognise the fact that a newer imaging unit has been put in and still tells me I have to replace it. How can I get the printer to know that a new one has been installed?

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  • Anonymous Jan 04, 2008

    I have had the same problem. However, I replaced our blackimaging unit with a new unit & the printer doesn't recognize the new one.

  • bhoida Mar 04, 2008

    I just installed a brand new yellow imaging unit, however the printer is not resetting itself and is still telling me to replace it. HELP!

  • Anonymous Nov 19, 2008

    I replaced the Black, Cyan & magenta imaging toner cartridge with new ones and the printer did not reset itself. It tells me that they are at near the end of life. What can I do to correct this?

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  • 208 Answers

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

Posted on Dec 07, 2007

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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 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

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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

1 Answer

The black print jobs have a shadow about 3 inches down the page


I had replaced the fuser - no improvement. I removed the fuser, imaging unit & transfer roller. CAREFULLY using a vacuum cleaner I cleaned all units and the internals of the printer, rotating the roller on the imaging unit to clean all parts. (Warning Place Imaging unit on paper as toner escapes) After a few test prints the page cleared and duplicate ghosting cleared.

Apr 07, 2010 | Xerox Phaser 6360 Laser Printer

1 Answer

Printing


The Phaser 7400 starts at $2,799. see models and prices see cost per print Color: up to 36 ppm Black: up to 40 ppm First-page-out time as fast as 12 seconds 800 MHz PowerPC processor Maximum paper size: 12" x 18" All models come standard with 10/100Base-TX Ethernet connectivity Standard paper input capacity: 800 sheets Maximum paper input capacity: 3,000 sheets Finisher/stacker/stapler/hole puncher capable of handling up to 1,000 sheets Maximum duty cycle up to 150,000 pages per month What comes in the box show/hide contents Color toner cartridges (capacity: 9,000 pages each 1 ) Black toner cartridge (capacity: 15,000 pages 1 ) Imaging units (capacity: 30,000 pages per color 2 ) Waste cartridge (capacity: 30,000 pages 2 ) Fuser (capacity: 100,000 pages 2 ) Transfer unit (capacity: 100,000 pages 2 ) Finisher ships with 5,000 staples Power cord Software and documentation.

Aug 13, 2009 | Xerox Phaser 7400/N Printer

2 Answers

Error message imaging unit is out


Hi rmcday: Here your problem. The imaging unit creates the image using an electro-photo process. The imaging unit consists of the following: ■ An OPC Drum ■ Waste Toner Assembly ■ Charge Roller Assembly 9.0 Consumables, Routine Maintenance Items and Options Item Life based on 5% coverage Part No. Replaceable by Black Standard Toner Cartridge Black High capacity 3,000 7,000 106R00679 106R00684 User replaceable Cyan Standard Toner Cartridge Cyan High capacity 2,000 5,000 106R00676 106R00680 User replaceable Yellow Standard Toner Cartridge Yellow High capacity 2,000 5,000 106R00678 106R00682 User replaceable Magenta Standard Toner Cartridge Magenta High capacity 2,000 5,000 106R00677 106R00681 User replaceable Imaging Unit 50,000 images 108R00593 User replaceable Transfer Belt 50,000 images 108R00594 User replaceable 500-Sheet Feeder N/A 119650600 Waste Toner Cartridge 3,000 to 5,000 pages (color 5%) 106R00683 User replaceable. Your imaging unit may have exeeded it life of 50,000 pages and will need to be replaced. Hope this helps

Jun 10, 2009 | Xerox Phaser 6120/YN Laser 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

1 Answer

Phaser 7400 not printing red


I would suspect you do not have drive to the red imaging unit area. A gear may have fractured, a motor not runing, which would normally give you a fault code, or a clutch is slipping not driving the red components.

Jul 22, 2008 | Xerox Phaser 7400/DXF Laser Printer

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