Question about Xerox Phaser 8400 Laser Printer

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Xerox Phaser 8400 getting error -- Service Needed 37,002.47:72864

I am getting error code "37,002.47:72864" on my Phaser 8400 and can not get it to clear nor can I find what this error means? Any one know what it means and how to clear it?

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  • ack42fl Jun 10, 2008

    OK, I tried and checked the first two items on this list. Neither helped. On Solution 3, I removed the two side covers and reseated the cables I found there, but do not know if any of them were the Printhead cable? Can you help me determine which cable I need to reseat and where it is?



    I appreciate your help!

×

2 Answers

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1 of two issues normally with that code. Either the print head has failed. Which is the most common problem,
2. The electronics module has lost the source voltage that runs those heaters.
3. As stated above the cable is loose.Both the print head and electronics module are quite expensive.

Posted on Jul 23, 2008

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The technical error message means:
The Printhead Left jetstack heater is not drawing the expected power from the power supply.

Possible solutions:
1) Make sure the AC plug is plugged into the wall and not a UPS or surge protector. Other things such as another printer, coffee maker or other electrical devices on the same circuit could cause a sag in AC demand from the Phaser, causing it to fail it's PEST (Print Engine Self Test).

2) Verify that the wall outlet's circuit is capable of delivering the correct amount of current to the Phaser, if it does, check how many other electrical devices (aka a desklamp, radio, etc.) are on the circuit.

3) If it's out of warranty, reseat the cables from the Printhead to the Electronics Module. If it's in warranty, place a service call on the unit.

Posted on Jun 09, 2008

  • Joe Shuler
    Joe Shuler Jun 13, 2008

    the cable from the print head to the electronics module is a grey ribbon cable. reseat the cable from both ends

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1 Suggested Answer

Joed911
  • 4338 Answers

SOURCE: i have xerox phaser 8400 : when i turn it on it


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

Posted on Jun 20, 2011

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37,004 is a printhead error, specifically that a Reservoir heater isn't drawing power from the power supply.

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Hi carlt322:
Here is your problem.


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Hi abonk:
This is your problem.

37,004.4x - PEST_FAULT_RESERVOIR0_HEATER_DISCONNECT
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1. Run the printhead Reservoir Heater test.
2. Verify printhead wiring.

Your preheater needs to be replaced.
Xerox Preheater Part # 119641980
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1 Answer

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1 Answer

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The print head is not moving freely.
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1 Answer

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From the service manual:

37,016.4x - PEST_FAULT_HM_CLUTCH_DISCONNECT
PEST - Head maintenance clutch disconnect. The head maintenance clutch is not
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1. Run the Head Maintenance Clutch test.
2. Check the Head Maintenance Clutch wiring.
3. Disconnect the Wave Amp signal cable from the left
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I have the full service manual available should you need it. Thanks and please take a moment to rate this solution as fixya.

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1 Answer

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Vpp measurement too low.

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Xerox All error booklet download LINK

Please rate as Thankyou

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