I just replaced the fuser kit with a brand new NON-refurbished fuser, and it is continually giving me the 50.4 error message and telling me to restart the power and recycle the power. What now?

Was the replacement fuser 'new' or 'refurbished'? Try re-installing the fuser, that will usually correct the problem. If not, contact your vendor & see if they will exchange it. Always try to replace parts with Factory New. I don't work for or represent any brand, but in always tell my customers: Buy new Factory parts.

This is an easy one.


The original fuser supplied with the printer DOES NOT have a counter chip. Instead, the PRINTER assumes that when the number of pages printed reaches the level at which the fuser needs to be replaced, the printer issued the REPLACE FUSER message.


If you replace the fuser with another that has come OUT OF a new printer (i.e. a 'PULL' from a new unused printer), since it has no counter chip of it's own, the printer assumes the fuser pagecount is the same as the printer pagecount (because there is no information to read from a fuser chip), and still wants the fuser to be replaced.


A new REPLACEMENT fuser from XEROX, or a CORRECTLY refurbished fuser WILL have a counter chip, and therefore clear the REPLACE FUSER message.

Hi guys, i also had an Hp 3600 that gave me 50.4 fuser error after replacing with a new one. The solution I found after troubleshooting for hours was to replace the low voltage PSU. Worked like a wonder!

Fuser faulty, replace it..

1. Turn the printer off, wait 10 minutes, and then turn the printer on. 2. If the message persists, reseat the fuser. If that does not work, replace the fuser. To check the fuser, turn the printer off and remove the fuser. Measure the resistance between the fuser connectors. If it is not within the proper range, replace the fuser. If there is not continuity between the fuser connectors neutral and hot with the fuser removed, replace the fuser. If the problem is not related to the fuser, replace the engine controller board. http://printertechs.com/tech/error-codes/error-codes-50-59.php
Fuser Ref: http://computer.howstuffworks.com/laser-printer3.htm

http://www.fastprinters.com/TechSupport_repair_parts.asp#2335VIDEO
http://www.youtube.com/watch?v=TQNm4Q_-Rv4

Hi hope this helps

the error looks to be low temperature on the fuser

as a repairer of machine I would normally recommend a new fuser unit if you use the machine a lot don't go for a refurbished unit as they just dint last as long but they cost more

hope this helps Ian

50.X FUSER ERROR

alternates with

For help press

A fuser error has occurred.

X Description

1 - low fuser temperature

2 - fuser warmup service

3 - high fuser temperature

4 - faulty fuser

8 - low fuser temperature

(subthermistor

9 - high fuser temperature

(subthermistor)

WARNING: The fuser is HOT. Turn the

printer off and allow it to cool for

approximately 10 minutes before removing

the fuser.

50.1 error - Fuser failure (Abnormally Low

Temperature Main Thermistor), perform the

following steps:

1. The connector between the fuser and the

printer is not connected properly. Reseat

the fuser. Check the connector J5013

between the fuser and the printer. Replace

it if damaged.

2. Break in the main thermistor. Turn the

printer off and remove the fuser. Measure

the resistance between the fuser

connectors J5013LA-2 (MAINTH) and

J5013LA-1 (GND). If it is not within the rage

of 330k ohms to 50k ohms (at ambient

temperature), replace the fuser.

3. Faulty DC controller PCB. Replace the

DC controller PCB.

50.2 error - Fuser Failure (Abnormal Warmup).

Perform the following steps:

1. The connector between the fuser and the

printer is not connected properly. Reseat

the fuser. Check the connector J5013

between the fuser and the printer. Replace

it if damaged.

2. Break in the main thermistor. Turn the

printer off and remove the fuser. Measure

the resistance between the fuser

connectors J5013LA-2 (MAINTH) and

J5013LA-1 (GND). If it is not within the rage

of 330k ohms to 50k ohms (at ambient

temperature), replace the fuser.

3. Break in the fuser heater. Measure the

resistance between the fuser connectors

J5013L-2 (FSRH) and J5013L-1 (FSRN)

with the fuser removed. If it is not within the

rage of 12 ohms to 52 ohms (at ambient

temperature), replace the fuser film unit.

4. Faulty DC controller. PCB Replace the

DC controller PCB

Table 7-3. Numerical printer messages (continued)
338

It is what it is. No, you can't refill it

If the display panel reads 50 FUSER ERROR, CYCLE POWER, turn the printer off for 15 minutes. This allows the capacitor that is responsible for signaling this error to discharge. If you don't wait 15 minutes you will continue to get this error even if you have replaced the fuser. If it continues to show the error, then you need to replace the fuser. It is easy to replace.
The fuser maintenance kit is about $119. on the web.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe


I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

The fuser unit could be the causes. But you can try this, power off the printer & unplug the power cord for 15 to 20 minutes. Power on after 20 minutes and se whether the problem resolves, if it ok, monitor it for a while just to make sure the problem resolves