Question about Xerox Phaser 7400/DXF Laser Printer

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.

I have also performed a reset from the hidden menu. The black imaging unit count was reset to zero but the machine is still saying to replace the imaging unit.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

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.

Posted on Mar 30, 2014

Testimonial: "Thanks for your quick response. I have tried using 62ma fuses connected to the rear imaging unit contacts and it wont blow. I wonder if the "Top door open" message is causing a false reading. The printer was operating before the message appeared to replace imaging unit. After that I can't get the message to go away and also the "Top door open" appeared."

  • 1 more comment 
  • Jeff Stamper Mar 31, 2014

    A new development. While in service mode I checked additional sensors and

  • Jeff Stamper Mar 31, 2014

    the "top door open" message appears even while the door is shut. Also while looking at the printer within a browser the "Top door open" is displayed, not "replace black imaging unit."

  • ERNESTO Mar 31, 2014

    Top door open leads to a faulty sensor in that door. Every door has a sensor to read uf the door is open or not. Please check the connections or damage in the interlock switch. Check chapter 8. page 129 on Service Manualhttp://www.hpitechnologies.com/files/740...

×

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 2072 Answers

SOURCE: Xerox phaser 7400

There really isnt an easy way to do that.
The transfer belt assembly starts off with a fuse on it to blow immediatly on install, and a counter that is internal so that it will end of life and have to be replaced. It's really not a convience counter but an obsolence counter.

Posted on Mar 06, 2008

  • 208 Answers

SOURCE: Black Imaging Unit

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

  • 37 Answers

SOURCE: 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.

Posted on Dec 04, 2008

  • 4 Answers

SOURCE: Reset counter on Xerox Phaser 8200

You can buy a kit to refurbish your reset counter for $20.00 including shipping at http://skyforms.netfirms.com/cgi-bin/phaser.cgi . It adds 45,000 copies to the counter. Also, a guy on ebay sells the kit already reset for 32.95 plus shipping.

Posted on May 13, 2010

  • 57 Answers

SOURCE: Xerox phaser 7760 saying "non-phaser imaging unit"

There is a snippet on the Xerox website to solve imaging unit recognition problems, link below. http://www.support.xerox.com/support/phaser-7760/downloads/engb.html?operatingSystem=winxp&fileLanguage=en_GB Usually this problem only occurs if the NVRAM has been reset or the engine board has been replaced without backing up the NVRAM. You can download the snippet to your printer through Centreware or by downloading the 'File Downloader' utility from the same page above.
Hope this helps.

Posted on Jan 22, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

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

1 Answer

Xerox phaser 7400


There really isnt an easy way to do that.
The transfer belt assembly starts off with a fuse on it to blow immediatly on install, and a counter that is internal so that it will end of life and have to be replaced. It's really not a convience counter but an obsolence counter.

Mar 06, 2008 | Xerox Phaser 7750B 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

Mar 27, 2007 | Xerox Phaser 7400DN Laser Printer

Not finding what you are looking for?
Xerox Phaser 7400/DXF Laser Printer Logo

197 people viewed this question

Ask a Question

Usually answered in minutes!

Top Xerox Office Equipment & Supplies Experts

Xeroxrep

Level 1 Expert

33 Answers

Philip Hughes

Level 2 Expert

68 Answers

CheckitRight
CheckitRight

Level 3 Expert

1362 Answers

Are you a Xerox Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...