Question about Xerox Phaser 8400 Laser Printer

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37,004.40:39187 with the fan running

I have a fault message 37,004.40:39187 on a phaser 8400,can anyone help

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The problem happened during a power outage. The power flickered a few times and the machine started making strange noises and the error appeared.I replaced the printhead and the board.I could go into the diagnostic mode and run every test on the panel and i could toggle all operations but still had the error.I am better now.Thanks for your help.I will be using your premium service soon.I am retired and am certified on all hp,lexmark,okidata,ibm and minolta.I have been at this for over forty years but have not had much exposure to XEROX.I can help you and a lot of other people if you like.I will be checking your website oftenand you have my email address.I also do all inkjets. Harley Cross

Posted on Mar 07, 2009

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You have a failed resivor heater in your print-head, your print-head will need to be replaced, unfortunately more expensive (800$) then buying a new Xerox Phaser 8550dn from Tiger Direct. ($750 ish)

Posted on Mar 07, 2009

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I have xerox phaser 8400 : when i turn it on it says : service needed fault 37 002 47:115353\r\ncould anyone help for that . thanks



Service Manual says:
37,020.47 = (8400) Strip Solenoid
37,020.47: Strip Solenoid disconnect.
The strip solenoid is not drawing the
expected power.

The Solenoid (relay) may be bad, or the power to it is low.


The Stripper Solenoid positions the stripper blade. The solenoid mounts on the Upper Inner Duplex guide and activates the strip solenoid lever, which in turn rotates the Stripper Carriage
until it hits the transfix ground pins. This action causes the stripper blade to drop onto the deadband of the Drum.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

Thanks, Joe

Jun 20, 2011 | Xerox Phaser 8400 Laser Printer

1 Answer

Xerox Phaser 8400 Fault 37,008.44:9490


this is a Preheater error 37,008.44 I will put the link below so you can see how to fix it the repair for that error is on page 105
https://www.office.xerox.com/partners/products/Phaser8400/SQRG/8400_85XX_Service_Manual.pdf

Jul 23, 2009 | Xerox Phaser 8400N Thermal Printer

1 Answer

Service message: Fault 37,004,40:50081


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

May 22, 2009 | Xerox Phaser 8400 Laser Printer

1 Answer

On bootup of Phaser 8400 recieve fault 37,004.40:117545


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

May 10, 2009 | Xerox Phaser 8400 Laser Printer

1 Answer

Anyone help with fault code 08.007.41.122.171 xerox phazer 8400 pleas


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.

May 06, 2009 | Xerox Phaser 8400 Laser Printer

1 Answer

Phaser 8400/8500/8560 maintenance kit


No, it will not work because the chip (CRUM) is not compatable.

Jan 13, 2009 | Xerox Phaser 8400 Laser Printer

1 Answer

Xerox phaser 8400 error code


That code is a jet heater code.The most likely problem is a bad print head, the second most likely bad item is the electronics module that supplies the 40-50 volt source to the print head heater.

Sep 22, 2008 | Xerox Phaser 8400 Laser Printer

1 Answer

8400 fault code


37,016.4x - PEST_FAULT_HM_CLUTCH_DISCONNECT
PEST - Head maintenance clutch disconnect. The head maintenance clutch is not
drawing the expected power from the supply.
1. Run the Head Maintenance Clutch test.
2. Check the Head Maintenance Clutch wiring.
3. Disconnect the Wave Amp signal cable from the left
side of the Electronics Module. If the error code
changes, replace the Wave Amp.
4. Replace the head maintenance clutch.

Sep 03, 2008 | Xerox Phaser 8400 Laser Printer

2 Answers

Xerox phaser 8400 fault


I have the same problem. Xerox says they need to send someone out and can not tell me what this code means.

Prior to the error I have having light streaking on the page. Took everything apart and cleaned and it worked OK for 2 days then returned to streaks.

If anyone knows what to look for please offer assistance.

Jul 24, 2008 | Xerox Phaser 8400 Laser Printer

1 Answer

PHASER 8400


1, The NVRam memory is corrupted.
2, A jet heater is not working
3. the electronics module is bad.

Parts possibly bad are the NVM, the Print Head or the Electronics module.
Hard without a manual to determine, all are expensive.

May 30, 2008 | Xerox Phaser 8400 Laser Printer

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