20 Most Recent Xerox Phaser 8400 Laser Printer - Page 2 Questions & Answers

When you go into the eliminate light stripes there is also a mode called Jet Substitution. You can sometimes bypass the bad jets.
If that does not work then the print head will most likely need to be replaced.
You can replace the printer for less than the cost of a print head normally..

Hi abonk:
This is your problem.

37,004.4x - PEST_FAULT_RESERVOIR0_HEATER_DISCONNECT
PEST - Reservoir0 Disconnect Reservoir0 is not drawing the expected power from the
supply.
1. Run the printhead Reservoir Heater test.
2. Verify printhead wiring.

Your preheater needs to be replaced.
Xerox Preheater Part # 119641980
This part will have to be replaced by a certified Xerox technician.
Hope this helps

Try this:

The printer has encountered an error state without the benefit of a code. Turn the printer off for 30 seconds, then power back on.
If the Printer Error message returns, press the i button on the printer's front panel. The actual error or fault number should be displayed. Note the error or message and search the knowledge base for the error.

Also:

Based on the problem description provided, we have determined that your printer needs service.
Please turn your printer off and use one of the methods below to make arrangements for service:

• Go to the Find an Authorized Xerox Service Provider near you web site
• Contact the Local Xerox Support Center for service

If using the local service provider website, please perform the following steps:

1. Enter your zip code in the space provided.


2. Choose a mileage distance. The search will locate a Service Provider within the specified range if available.


3. Click Go. The web site will return a list of Authorized Service Providers (ASP) with their company name, address, phone number, and fax number.

37,002.4x - PEST_FAULT_JSL_HEATER_DISCONNECT

Try this
PEST - Left jetstack disconnect.The left jetstack is not drawing the expected power from
the supply.
1. Run the printhead Left Jetstack Heater test.
2. Verify printhead wiring.

Turn off the printer and open the printer back door. Use a spot light and give look inside properly. Make sure there no paper. Some time small part of the paper creates the problem. So you can do one thing after open the back door, top side etc make the printer upside down etc. So if anything inside that's will come out. After cleaning again connect it with PC and turn on. Now give a look. If you face same problem then Un-install the printer driver and software from the PC. Then restart the PC and Printer both. Now connect the Printer with PC via USB and install again the driver & software. Then try to print and let me know the result.

What has most likely happened it the tab that actuates the cover switch has broken off. What you want to do it open that cover and look around the edge where it meets up with the other cover. There will be a hole, I would say about a half inch long and about a quarter inch wide where there will be a switch. Look at the exit cover in that area and you will probably see where a tab was, and is not broken off. You normally can fix it by making a couple of small holes in the cover and epoxying a paper clip in that area as a new switch actuator. You have to break or cut the paper clip to the proper length and so you have 2 ends to pop through the cover and epoxy it to.

You can download the Xerox printer drivers from their support WEB site. Then click on the downloaded file to install the printer driver.

Please click on this link and select your model printer to download :-

http://www.support.xerox.com/support/enus.html

this code showing some hardware issue

It can be fixed, but only by a Xerox authorised service centre. Xerox website tells you to turn it off and book it in for a service. Be prepared to pay a call out fee before hand. Here's the reference link for your error from Xerox website.

That can be one of two things.
1. There is a drum encoder on the end of the drum motor.that picks up silicon lubricant from the maintenance kit roller. Normally removing it and cleaning it will resolve the issue, sometimes it needs replaced.
2. There is a print head block that can become dirty and not allow the print head to get into the proper printing position, but that most likely would cause an 07,10.043 code and shut down. I really suspect a dirty/contaminated encoder.
The encoder is on the right side of the machine looking from the front, once you locate the drum shaft you will see it. Sort of flush it out with alcohol and allow it to dry, put it back in and you should resolve your problem. If not let me know.
If you need to order one the part number with diagram is on Xerox.com, under downloads and documentation, there is an online parts list for that machine. www.xerox.com

37,004.4x - PEST_FAULT_RESERVOIR0_HEATER_DISCONNECT
PEST - Reservoir 0 Disconnect Reservoir 0 is not drawing the expected power from the supply.
1. Run the printhead Reservoir Heater test.
2. Verify printhead wiring.