The 37,004.40 error means that the ink reservoir is not heating up correctly. Make sure the printer
is plugged in directly into the wall and not on a power strip and cycle the power to the machine (turn it off and back on). If
the problem continues, you probably have a bad printhead which you have to replace. For the 8400 the part number is 650-4303-00. Iteminc.com has that part in stock and ships same day. Here is a video that shows you how to replace the printhead. Hope this helps and thanks for using FixYa.
SOURCE: service message: Fault 37,004,40:50081
Hi abonk:
This is your problem.
37,004.4x - PEST_FAULT_RESERVOIR0_HEATER_DISCONNECT
PEST - Reservoir0 Disconnect Reservoir0 is not drawing the expected power from the
supply.
1. Run the printhead Reservoir Heater test.
2. Verify printhead wiring.
Your preheater needs to be replaced.
Xerox Preheater Part # 119641980
This part will have to be replaced by a certified Xerox technician.
Hope this helps
SOURCE: 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
https://www.office.xerox.com/partners/products/Phaser8400/SQRG/8400_85XX_Service_Manual.pdf
If you need further help, reach me via phone at https://www.6ya.com/expert/david_eb7ea98642566cc6
SOURCE: i have xerox phaser 8400 : when i turn it on it
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
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.
I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309
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