Question about Xerox Phaser 8400DP Thermal Printer

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Xerox 8400 error code 37,063.45

I have a Xerox 8400 with an error code 37,063.45 and says it requires service. Can someone tell me what this error code means before I have to pack this 50 lb printer in for service? :-)

Thank you.

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Re: Xerox 8400 error code 37,063.45

37,063.45 The Power Supply high switch not activated. Electrical short or missing reset line.

This is what the code means.
Seems like a service call is the proper step.

Posted on Dec 31, 2007

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Re: Xerox 8400 error code 37,063.45

Vpp measurement too low.

The printhead power cable may be disconnected.

Xerox All error booklet download LINK

Please rate as Thankyou

Posted on Dec 26, 2007

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Error code 13.387.48:106521 Phaser 8400 Print Count 110,000 Can this be Fixed

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.

Mar 06, 2011 | Xerox Phaser 8400 Laser Printer

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What is the Xerox Phaser 8400 printer error code 07.010.43:43923? Much appreciated. Thank you.

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.


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:
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.

Feb 12, 2011 | Xerox Phaser 8400 Laser Printer

1 Answer

Hi there, Im getting an error code: 07,010.43:48669 on my printer, can you maybe help? Error occurs @ 5% warm up. Id also like to know if you perhaps have the schematics and a service manual? Thank...

The most common thing that causes this issue is the drum maintanance cam and or DM pivot plate. I would check the cam like it discribes and also make sure the pivot plate isnt cracked. But really the service not gives you a list of what all needs to be check.
The Xerox website says to take it in to a service center:,E=0000000002388339860,K=7746,Sxi=4,Case=obj(21655)
And here is a link to the documentation

Nov 17, 2010 | Xerox Phaser 8400 Laser Printer

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Xerox Phaser 8400 error

When you power on the unit it goes through a series of tests to determine that the correct voltage is going to each system within the phaser. The error code you've provided implies a Preheater error 37,008.44
AC power supplied by power sources such as uninterruptible power supplies (UPSs) or DC-to-AC inverter systems may not supply correct voltage to properly power up the printer. Likewise, other devices sharing the same AC circuit can cause AC voltage sags that cause the printer to fail its AC heater PEST tests (Print Engine Self Test).
My first suggestion is to remove any other devices from the electrical outlet the printer is on, and then power it on.
If the error persists, you've got a hardware failure internally and would need to replace the preheater and deskkew assembley, Xerox PN 119641980
By the way, the last 4 digits in your error code are the current page count of your printer. This number is relatively low and thus it begs the question is the printer still under warranty? The part in question is about $110, however installing it will not be an easy task if you've never taken a Phaser 8400 apart or you do not have a service manual.
My suggestion, if the machine is out of warranty, is that you bring it to a qualified repair technician for service, unless you feel comfortable doing the repair yourself.
best of luck in any regard

Sep 01, 2009 | Xerox Phaser 8400 Laser Printer

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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

Jul 23, 2009 | Xerox Phaser 8400N Thermal Printer

1 Answer

Phaser 8400 error code 37,016,43:7052

From the service manual:

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.

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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Phaser 8400 error code

That is related to the print head heating. Normally one of the print head heaters fails which requires replacement of the print head. The other item I have seen fail and cause that code is the electronics module. Both are very expensive.

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Fault code's a system error this an older machine, by chance?

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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.

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Phaser 860 error code 07.003.45:116163

It is a print head tilt error.
Most likely ink is in the stainless steel pivot block at the bottom of the print head.
Also the printer could have been unplugged and the cleaning blade is stuck to the print head.
Or a cable is binding the print head movement.

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