How replace fuser? - OKI B4600 Printer

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.

50.1 Error: (Low fuser temperature)
1. Verify the fuser is installed correctly and fully seated.
2. Check that connector J6007 on the fuser is seated correctly. Replace the connector as necessary.
3. Turn off the printer.
4. Remove the fuser.
5. If there is no conduction in the main thermistor, measure the resistance between fuser connectors J6007LA-1 and J6007LA-3. If the resistance is not 100 kohms to 3 Mohms, replace the fuser.
6. If there is no conduction in the fuser heater, measure the resistance between fuser connectors J6007LAF-1 and J6007-2. If the resistance is not 5 ohms to 1 kohms (100 to 127 V) or 20 ohms to 1 kohms (220 to 240 V), replace the fuser.
7. Upgrade the DC controller firmware.
8. Replace the DC controller PCA.

50.9 Error:(High fuser temperature (subthermistor))
1. Verify the fuser is installed correctly and fully seated.
2. Check that connector J6007 on the fuser is seated correctly. Replace the connector as necessary.
3. Turn off the printer.
4. Remove the fuser.
5. Measure the resistance between fuser connectors J6007LA-2 and J6007LA-3. If the resistance is not 100 kohms to 3 Mohms, replace the fuser.
6. Replace the DC controller PCA.

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

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.

X FUSER ERROR A fuser error has occurred. 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.

fuser gears. replace the fuser. part number rm1-3740-030cn

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.

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.

FUSER ERROR:

. 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.