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Getting on error 171, I think it is to do with the fuser. roller thermistor (low temperature) Can you verfiy that from me, and does it need to be replaced. OKI B4350

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171 is Upper Thermistor, State: Open

Check the heater connector and the thermistor connector to make sure they are seated properly. If OK you probably need to replace the fuser.

Posted on Nov 14, 2008

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2 Answers

What call service 3 in Panasonic kx-mb1900


CALL SERVICE 3" means that the temperature of the fuser does not rise up to or exceed a constant temperature.
The temperature is monitored with the thermistor inside the fuser and detected with the voltage input into IC 300-D19

Apr 26, 2014 | Panasonic KX-FL611 Plain Paper Laser Fax

1 Answer

Hi there, i have an hp 3500 printer. the fuser was ript appart and needed replacment.(the rol was broken on one side and was not burning the inkt on the paper anymore) i have got a new one, but keep...


50.9 error - Fuser Failure (Abnormally High
Temperature Sub Thermistor)
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. Short in the sub thermistor. Turn the
printer off and remove the fuser. Measure the
resistance between the fuser connectors
J5013LA-4 (SUBTH) and J5013LA-3
(+3.3V). If it reads 600 ohms or below (at
ambient temperature), replace the fuser.
3. Faulty DC controller PCB, replace the
DC controller PCB.

I think you've some problems on the connectors, check the connections.
If you are able, replace the broken fuser roller from the old fuser with one from the new fuser.

Jun 09, 2011 | HP Color LaserJet 3500 Printer

2 Answers

ERROR SC545


This error code indicates a fuser unit malfunction. Most likely it will at least need new thermistors. Thermistors read the temperature of the fusing rollers. This code means the thermistors thought the unit was too hot. For this reason I am hesitant to give you the service mode reset procedure as you could do further damage.
Good Luck

Nov 27, 2009 | Ricoh Aficio 2022 Black and White Copier

2 Answers

Error Engine Fuser low heat


possibly the fusers thermostat is displaced. it rides very close to the roller to get an accurate reading, look for 2 wires into a black "thing" toward the middle of the roller. this is a thermistor which sends its reading to the mainboard. check if the fuser is getting very warm, there is a thermo couple in series with the fusers power so it wont overheat but if its getting hot and the printer doesnt know it then the dammaged/displaced thermostat would be the thing to look for,

Sep 28, 2009 | Samsung CLP-600N Laser Printer

1 Answer

Our OKI C5100 is showing 171:Fatal error. What should we do?


The 171 Fatal error:

Upper Thermistor, State:Open

When an open circuit has been detected in the heat roller thermistor (low temperature)

Check the heater connector and the thermistor connector to make sure they are seated properly. If OK you probably need to replace the fuser.

Hope this helps.

Sep 03, 2009 | OKI C5100n Laser Printer

1 Answer

Service Call 172 Fatal Error


Hi stuart34:
Here is your problem.
Service Call
172: Error
176: Error
High temperature
error detected at
Thermistor.
1) Is the error message displayed?
2) Does the error repeat?
Yes
Yes
Turn off/on the printer.
Replace the Thermistor and turn off the
1 Upper roller 2 Lower roller 1
b
Thermostat Thermostat
Heater Between pins a and b:
Between pins c and d: 231.4kω
Between pins e and f: 231.4kω (at 25°C)
2
Between pins a and b:
Between pins c and d: 0ω or open
Between pins e and f: 231.4kω (at 25°C)
Fuser Unit
a
b
Heater
e
f
Thermistor
c
d
Fuse
e
f
Thermistor
c
d
printer. Leave it for 30 min.

The Thermistors are located in the fuser assembly.

Hope this helps

May 29, 2009 | OKI C9300hdn Led Printer

1 Answer

Sharp al-1644


H4 is a fuser roller heating issuse. The temperature isn't hot enough. May need new fuser roller assambly or a thermistor.

Jun 03, 2008 | Sharp AL-1641CS Laser Digital Copier

2 Answers

Toshiba e-studio error code


It is abnormal temperature in the fuser*, thermistor error.

Maybe replacing fuser would help. But better contact service person.

*fuser, the part of a laser printer that melts the toner onto the medium. It consists of a hot roller and a back-up roller.

Feb 13, 2008 | Office Equipment & Supplies

3 Answers

Error 537


i think that is a memory related error: http://support.epson.ru/products/manuals/000836/alcx11_ug_en.pdf good luck:

Sep 30, 2007 | Epson Aculaser C1100 Printer

2 Answers

Engine Fuser Low Heat Error


there is a 2 wire device (thermistor) that rests against the fuser roller to measure the temperauture. if the fuser is getting quite hot, suspect the thermistor to be either dirty (remove and clean it with alcohol) or defective. if fuser not getting hot, then suspect burned out fuser heater (look inside fuser roller for a long light bulb).

Aug 28, 2007 | Samsung CLP-510 Laser Printer

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