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Re: error after power-shutdown
That problem is comming from the print head not pivoting properly from the print to home position.
Most likely issue is a dirty print head block.
If you remove the left side cover, left side looking from the front. About mid way along the printer toward the bottom, there is a stainless steel block, about in inch square. There is a spring assembly around it. You can just pull that latch out and secure it up and to the left. The block most likely has ink built up in it, not allowing free movement of the print head. Clean that block well, soaking it in some hot water helps soften the ink.
That is the problem with that code 80 percent of the time.
Next is a cleaning blade tacked to the print head. If that is the case, you have to remove both the right and left covers and the ink loader ( the assembly where you insert the ink sticks). If just is held in place with tabs on the side of the loader. Once you remove the loader you will see the print head, check to see if there is a pink blade between the drum and print head. that will happen if you had a power failure of the machine was not properly shut down.
3rd are the cables to the print head being to tight not allowing the head to move back and forth.
There are a couple of far less likely issues with that product. But I strongly suspect a dirty print head block
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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
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:
7,009.4x: PM_FAULT_HEADTILT_PARK_ ERROR
The printhead is tilted back but not in the park arms and restrained properly. This is due
to the wiper assembly not moving up far enough for the park arms to hold it.
1. Check the printhead heater wiring.
2. Check for an obstruction or damage in the process
gearbox. Ensure the gears are correctly aligned and
homed, see page 6-8. If faulty replace the process
3. Run the Head Maintenance Clutch test, if it fails replace
4. Run the Wiper Drive test. If the test fails, inspect the
maintenance drive system.
5. Replace the exit assembly.
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
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.
I have the full service manual available should you need it. Thanks and please take a moment to rate this solution as fixya.
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.