Question about Xerox Phaser 8400DP Thermal Printer

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We have an xerox 8400 and get constant cleaning warm up cycles. at times. When we received this unit we also had a loose gear train on the right side. after timing it per the manual. ( both holes on the train aligned with their holes and the cleaning cam shaft hole opinting to the arrow on the ground plate The cleaning station now homes in the up position. Both cams do not look cracked . If we allow the cleaning cams to home to its plate the station sits down.

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

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SOURCE: clogged print head

What you can try is going onto the site and loading what is call Jet Substitution it will change the ports being used.
That could help.
Load it to your laptop and then run. Sometimes helps.
Unfortunatly that is a very expensive print head.

Posted on Feb 12, 2008

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SOURCE: 8400 and 8560 Xerox tech manuals

Give this location a look.

Posted on Apr 22, 2008

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SOURCE: clean an 8400

Replace the maintenace kit and then in the menus run eliminate light stripes and eliminate smears.
There really isnt much else to do.
What you do when you run the light stripes and smears modes the machine removes all the ink from the print head, turns on a compressor and blows out the jets on the print head.
There really isn't a "cleaning " procedure as with a laser printer. If the maintenance kit is good, it pretty much maintanes itself.

Posted on Jan 06, 2009

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SOURCE: xerox phaser 8400 error

That is a print head tilt error. Either the print head pivot block is contaminated with ink or the wiper blade is tacked to the print head.
Let me know if you want to try to resolve it yourself, I will send you directions.

Posted on Feb 17, 2009

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SOURCE: xerox phasor 8400 - fault 37,004,40:157517"

Hi I can gave you some error codes but this all I can do hope it be of help to you.

  • The media path motor has stalled while moving without the clutch engaged.
  • Tray 1 status:
1. Check the wiring and connectors from the front door to the I/O board.
2. Run the Test Tray 1 Width Sensors.
3. If the test fails replace the front door.
4. Replace the I/O board.

  • The media path drive module has stalled while engaging the head tilt.
  • The Preheat preheater is not drawing the expected power from the supply.
Run the Preheat Heater test, check the wiring. If test fails and no apparently problem is evident, replace the preheater.

  • Problems with the Y-axis. It could be the belt,motor or the drum.
  • The printhead tilt is not engaged, so it didn't tilt back properly or the printhead is stuck in the tilted position by the tilt lock arms. The process motor gear train getting out of sync can also cause this error.
1. Try rebooting the printer.
2. Check for an obstruction or damage in the process gearbox.
3. Ensure the gears are correctly aligned and homed. If faulty replace the process gearbox
4. Run the Tilt Axis Drive test to test the headtilt.
5. Run the Head Maintenance Wiper Clutch test. If the test fails, replace the wiper drive clutch.
6. Run the Wiper Axis Drive test.
7. Replace the exit assembly.

  • The printhead is stuck in the tilt position by the tilt arms. The process motor gearbox being out of sync can also cause this error.
1. Reboot the printer.
2. Verify the lock arms rotate correctly.
3. Check for spilled ink around the printhead.
4. Check the process motor gears for damage. Ensure the process gears are correctly aligned and homed.
5. Verify the process gear box, process shaft, and drive module shaft are at home position.
6. Verify the headtilt gear will engage, see the home positioning procedure on page. You can manually engage the headtilt gear.
7. Run the Tilt Axis Drive test.
8. Run the Process Motor test.
9. Run the Head Maintenance Clutch test, if the test fails replace the clutch.
10.Run Wiper Drive test. If this fails inspect the wiper drive system.
All The Best: Pineworks

Posted on Jan 30, 2010

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This error indicates the Printhead was unable to tilt normally on its axis. Check for spilled ink around the printhead that prevents it from moving right to left. The printhead could also be stuck to the wiper blade if the printer was turned off during a cleaning cycle. If you turn the x-axis motor does it move the printhead forward and backward? Check the process drive gears for damage and ensure the gears are timed correctly. Check to see if ink has spilled on the head tilt gear train (left side of printhead)

Feb 02, 2014 | Xerox Phaser 8860MFP/D - Multifunction -...

1 Answer

How do you turn off the cleaning page of the xerox phaser 8400

How often is it printing them? They are necessary from a cold start or anytime it warms up.

Jun 11, 2010 | Xerox Phaser 8400 Laser Printer

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Xerox XD100 paper jamming every time.

The fuser is the problem. Most likely the fuser will need to be rebuilt or replaced.
Google a business called The Parts Drop. they have either the parts or the unit.
You may just have to take the fuser out and remove a badly jammed piece of paper in that module.
Shut the machine off for a half an hour. Remove the back cover. You will then see on the left side a black plastic bracket with 3 plugs on it. Disconnect those 3 plugs. Then open the right side door and toward the top is the fuser. It has yellow caution HOT labels on it. There are 2 silver phillips screws holding it in. Remove the screws and then remove the fuser unit and see if there is a paper in there. There are 2 screws that you can remove and the fuser will kind of fold open to inspect for bent fingers or one out of place.

Mar 30, 2010 | Xerox WorkCentre XD100 All-In-One Laser...

1 Answer

08,007.41:8472 It's a phaser 8400 i have no idea what to do..What could it be?

Your print head wiper blade is not moving properly.

The clutch that moves the wiper may be failing.
That blade is located between the drum and print head.

Printhead Wiper Alignment: Rotate the left and right idler gears until the Wiper is all the way to the bottom and the gears cannot be rotated further. Rotating the left and right gears together ensures that the wiper stays parallel and does not pop out of the belts. Now rotate the left idler gear a couple of teeth to raise the left side of the wiper to the top. Make sure that the left side of the wiper is a bit higher than the right side. Might have to try this procedure a couple of times, a couple of teeth at a time, to properly align the wiper.

Feb 08, 2010 | Xerox Phaser 8400 Laser Printer

1 Answer

Xerox 8400 error 07.010.43:52882

7,010.43: The printhead is stuck in the tilted position, or is not able to tilt forward to the print position, due to problems.
Do the printhead lock arms rotate correctly.
Has ink spilled ink around the printhead that prevents the printhead from moving to its center position? You should be able to manually push the printhead right to left.
Does the X-axis motor drive the printhead to it’s center position (so it can tilt forward)?
1. Check the process gearbox for obstructions
or damaged.
2. Ensure the gears are correctly aligned and
3. Verify the process shaft and drive module
shaft are at their home positions.
Has ink spilled on the head tilt gear on its drive train (near left side of the printhead).

Aug 30, 2009 | Xerox Phaser 8400 Laser Printer

1 Answer

Error code 07007.40:135989 Phaser color printer 8400

7,007.49: The process motor stalled while tilting the head.
Troubleshooting Procedure for 7,007 Error Code
Step Questions and Actions Yes No
1. Check the Printhead wire routing.
2. Remove the Printhead and inspect the
Printhead tilt and drive gears for ink
3. Re-route the wiring.
4. Clean around the gears and Printhead.
Did this correct the problem?
Complete. Go to Step 2.
2 To ensure Process Drive is correctly aligned,
homed, and free from damage, see “Homing
the Process Drive Train” on page 6-8.
Did this correct the problem?
Complete. Replace the

Jun 30, 2009 | Xerox Phaser 8400N Thermal Printer

1 Answer

Xerox Phaser 8400 error code 37,004.40:27697

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.

Apr 24, 2009 | Xerox Phaser 8400 Laser Printer

1 Answer


07,009.42 indicates that the printhead was unable to tilt normally on its axis.

You probably have a cracked drum maintenance camshaft. If the drum maintenance pivot plate is white plastic it should be replaced as well with the new style, which is black plastic. This repair requires removing the process drive gears assembly and reinstalling it requires the gears to be timed. This repair should be performed by a qualified technician familiar with these machines.

You probably have a cracked drum maintenance camshaft. The dm camshaft is driven by the process drive motor on the right side of the printer. It raises and lowers the maintenance kit against the drum to oil and clean the drum. The camshaft has 2 lobes on it. These lobes crack over time and cause several different error conditions. The camshaft part # 401100380 is only about $17 from xerox but can be tricky to replace if you're not mechanically inclined. The other thing to look at is the pivot plate assembly. Slide out the drum maintenance kit. If you look inside the cavity the plate that the maintenance kit sits on is called the pivot plate. If it's white it will also need to be replaced with a black one.

Oct 15, 2008 | Xerox Phaser 8400 Laser Printer

1 Answer

Xerox Phaser 8400 light stripes

Your print head is in ned of replacement.
If you have done all you have, not much more that can be done.
You can try running that eliminate stripes a few times, and also in that area try the Jet Substitution, and see if you can open new jets to bypass the blocked ones.
after that, your print head would need to be replaced.
Wish I had a better and cheaper answer.

Jul 08, 2008 | Xerox Phaser 8400 Laser Printer

2 Answers

Xerox printer error code (04,025.46)

This is a print head position issue.

TRY FIRST (Solutions without parts):
1. Check that the wipe mechanism has homed. 2. Check the printhead position and verify that it has initialized properly / manually home the printhead and power cycle the printers power and check for the error to return. If not then the error was most likely due to non-process function (something out of sequence).
Part likely to be the cause:

Jan 19, 2008 | Xerox Phaser 8400 Laser Printer

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