20 Most Recent Xerox Phaser 8400 Laser Printer - Page 9 Questions & Answers

no it dont have a fuse u will need a new power supply for it

Hi jam_es_2001:
The roller in the maintenace kit applies a thin layer of oil to the image drum. When the image is applied to the drum the oi prevents the image from sticking. The cleaning blade cleans the drum after the image is applied to paper. After the image is applied to the paper the drum is cleaned by the cleaning blade and new oil is applied to the drum for the next image. Check the roller in maintence kit to see if it is dry, if it is replace the maintenance kit.

Hope this helps

Bad print head.

That is an issue with the movement of the print head. If you had a power failure or the machine was not shut down properly the problem most likely is the print head wiper is tacked to teh print head or drum. That can happen with just normal use.
There is also a stainless steel print head block located on the lower left fraim that fills up with used ink runoff, if that is gummed up the print head can not move freely.
E-mail me at [email protected], I wll send you instructions.

That is a print head tilt or X-Y axis fault.
1 of three things causes it to not move.
1 there is a stainless steel print head block that fills up with the ink that runs out of the maintenance tray. Mostly because the printer is not sitting level. But it needs to be cleaned.
2, The print head wiper blade has tacked to the print head, or 3, The wiper blade clutch has failed.

pull out the paper drawer and look on the ceiling of the compartment. you will see a little orange rubber roller that should be clicked inplace. it feeds the paper up into the roller. also, the drawer itself contains two sensors. if you go to the xerox page you can download the pdf that lists all the parts and the errors and how to disassemble the whole thing. i have the same printer and got a print head error and a paper jam that required complete disassembly. feel free to email me for additional help.
[email protected]

You manually rotated the aluminum drum? Since you did that, I would suspect you have the print head wiper blade stuck between the drum and print head. The code you are getting it caused by the print head not being able to move freely.
The jamming is probably due to a bad registration clutch. Common failure on that machine.
You can go to Xerox.com, there is under documentation and drivers a parts list for that machine. You can reference the wiper blade and get the clutch part number there.
Let me know what other information you may need. I will be glad to help you get it running again.

Here is a llink to the product brochure:

http://www.office.xerox.com/latest/84XBR-01.PDF

On page 3 it mentions that the printer will do labels. On page 4 in the specifications section, it indicates that 2 trays can be used to hold label media.

That is a problem with print head movement. Either side to side or tilt. There is a stainless steel print head block located on the left side of the frame, about 2/3 of the way back and near the bottom, It may be contaminated with ink. Or the print head wiper may be tacked to the print head. If you want info how ot access and repair, let me know.

your printer thermostator paper dust or toner dust clean it and solve

When you removed thejammed paper the paper sensor might still be stuck in an active position.
Have to pull it back in place. Just have to follow the paper path and find out where it is.

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

Hi,
Insufficient AC Power Can Create 37,002 thru 37,008 Errors.
ENSURE AC POWER IS ADEQUATE FOR THE PRINTER
AC power supplied by power sources such as uninterruptible power supplies (UPS’s) or DC-to-AC inverter systems may not supply enough current to properly power up the printer. In such cases the printer may produce a printhead jet-stack or reservoir heater disconnect error 37,002.47.
Mel

Check you power coming in to the unit. If you are using a surge protector or UPS unit, Plug the unit into the wall and power up the printer. If that does not work, then:
PEST Fault 37,004.40: xxx
Printhead reservoir 0 disconnect:
Reservoir is not drawing the expected power from the power supply.
Service manaul states the the printhead needs to be replaced.



If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

PEST Fault 37,004.40: xxx
Printhead reservoir 0 disconnect:
Reservoir is not drawing the expected power from the power supply.
Service manaul states the the printhead needs to be replaced.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

That is normally a RAM failure. You can try going to the back of the machine and opening the plate which covers the memory stick or sticks, depending on how much memory you have. Remove and reseat the memory. You may have had a memory failure, memory dump or electronics module failure. Kind of a difficult one to trouble shoot.

The print head is not moving freely.
There is s print head block that may be filled up with runoff ink, or the print head wiper blade may be tacked to the print head.

The majority of the time that code means the print head has failed.
That is a print head heater error.
You can find some places that sell print heads for about $150 , you would have to google the model number for that.
Xerox would charge $750 for a new print head, uninstalled.

hi i hope i can help you? remove the cover from the machine and load paper as normal. and watch if the mechanics is sticking or anything that you can see give a clean with wd40clean all rollers check that you are puting in the correct amount off paper.check for loose connections.check for dirt on the switches.

hi david i hope i can help you? you may need to give the machine a good clean, if there is any rubber wheeles? give them a clean with meths. little rollers check to see if any carbon brown in colour. its caused by constant use. i hope this has helped you? top tip you must make sure all the brown is completly away. to make your machine run better.