Phaser 8550 error 08.035,42:129014 - Xerox Phaser 8550DX Laser Printer

SOURCE: xerox phaser 8550 error :

That is a wiper or media gearbox fault.
The wiper may not be moving up and down wiping the print head properly or the media gear box may be mistimed.

SOURCE: phaser 8550 error 19,004.40

The printhead was installed in another machine and the codes do not match. You need to manually sync them. Here is the procedure:

Manually synchronize the Printhead and Electronics Module codes.
NOTE: The Printhead and Electronics Module codes should synchronize automatically when a new printhead is installed. If a 19,004.40 error occurs, it is possible that the replacement printhead was previously installed in a different printer. After manually synchronizing the Printhead and Electronics Module codes, be sure to test the new printhead for print quality defects.
To manually synchronize the codes;
1). Power OFF the printer.
2). Disconnect the printer from external devices (A/C power can remain connected).
3). Locate the "Factory Only" port on the electronics module (located between the PS and PE lights (Figure 1).
4). Use a Hard Disk Drive (HDD) jumper (Figure 2) to short the top two pins.
NOTE - If a HDD jumper is not available, use another conductive item, such as a screwdriver, to short the pins. Use caution to avoid contacting the surrounding frame, as this may permanently damage the Electronics Module.
5). With pins shorted, power ON the printer.
6). When printer reaches the mechanical initialization stage of the power on sequence, power the machine back OFF.
7). Remove the HDD jumper.
8). Code should now be synchronized. Power ON machine and verify the 19,004.40 error does not re-occur.
NOTE - If error persists after this procedure, attempt the procedure again, and be sure to allow the printer to complete its BIST and POST test before powering OFF in step 6.

SOURCE: XEROX 8550 DP ERROR Message 09,035,43; 10192

That is a cyan, ( blue) ink stick fault. What is happening is that the cyan ink sticks are not advancing down the ink loader properly.
Open the area where you load the ink and you probably have a cracked, twisted or otherwise stuck ink stick, the code you are reporting specifically refers to the cyan sticks. If you have to remove them, take a screw, a drywall screw is best, and twist it into the sticks and slide it back and out, then replace them or add new ones. But thats your problem.

SOURCE: Phaser 8550 printer fault 37,008.44:25860

This is a pre heater error.

I would make sure the printer is connected directly into the wall and not into a power strip or UPC as these devices may create momentary AC voltage sags that could cause this error. If power levels going into the printer are good, you will need to contact Xerox for support

SOURCE: Xerox Phaser 8550 printer error 09,037,45:23780

Hi,

This means the Yellow ink sticks are jammed in the machine, open up the top of the machine and check if the sticks can slide freely up and down and remove any broken sticks.

Niallbt