Question about Dell 5100cn Laser Printer

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Low voltage power supply

We purchased a new fuser for the Dell laser printer 5100cn and installed it but after receiveing an error message and not printing we called tech support! They said that we needed to purchase a low voltage power supply to enable the fuser to work so i was wandering where I can purchase it, about how much is it, and if there is another solution that is less expensive the fuser was $120 which is about as much as the printer itself. Thanks so much

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What is the error message you are getting with the new fuser. Is this the same error you were getting before changing the fuser? If you changed the fuser because the old one was just at EOL ( end of life) but did not give you an error, have you tried to reinstall the old fuser.

It is possible that the new fuser was damaged in shipping, or not properly seated.

If both the new and old fuser give the same error message, then yes, I would agree that the LVPS would be the next part to replace, however, if they have different errors, then you probably have 2 bad fusers ( or one that is EOL, and one that was received damaged).

Before changing the LVPS, make sure you follow the steps below prior to the LVPS steps.
as far as where to purchase it if you do in fact need one, you can always do a google and ebay search for "Dell 5100cn LVPS".

I can provide you with replacement instructions if it comes to that.

See below for the actual troubleshooting needed for the fuser.
The following steps are the troubleshooting steps that should be followed for error code 010 397.
First, the definition of the failure is <IOT Fuser Failure>, and means a Fuser Error is detected.

1) With power off, reseat the fuser by physically removing it from the printer, then reinstalling it and locking it in place. Turn the power back on. ( if the error is still present, proceed to step 2 ).

2) If reseating the fuser did not resolve the problem, Replace the fuser with a known good fuser.
( if problem is not resolved, proceed to step 3)

3) Replace the LVPS ( low voltage power supply ). ( if problem not resolved, proceed to step 4 ).

4) Replace the PWBA MCU ( printed wiring board assembly - machine control unit ).

END of troubleshooting.........

Posted on Oct 30, 2008

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Hi G,

99% of the time the error is the fuser. Either it is damaged, or just not locked in place, and with power off, reseating it will fix the error. Since you just replaced the fuser, I guess the question is did you do it because it was also giving this error, or because it reached EOL ( end of life ).

If it was for EOL message, I would try reinstalling it. If the "reseat fuser" error goes away, but comes back with the new fuser again, then the new fuser you purchased is defective and should be returned or exchanged.

See the information below to correctly troubleshoot your issue.

The following steps are the troubleshooting steps that should be followed for error code 010 397.
First, the definition of the failure is <IOT Fuser Failure>, and means a Fuser Error is detected.

1) With power off, reseat the fuser by physically removing it from the printer, then reinstalling it and locking it in place. Turn the power back on. ( if the error is still present, proceed to step 2 ).

2) If reseating the fuser did not resolve the problem, Replace the fuser with a known good fuser.
( if problem is not resolved, proceed to step 3)

3) Replace the LVPS ( low voltage power supply ). ( if problem not resolved, proceed to step 4 ).

4) Replace the PWBA MCU ( printed wiring board assembly - machine control unit ).

END of troubleshooting.........

In most cases, the fuser itself is the problem. If you tried to reseat or replace the fuser while power was still on, the LVPS could have been damaged just as if there were an electrical storm.

Hopefully this helped.

Oct 28, 2008 | Dell 5100cn Laser Printer

5 Answers

010 397 Error Message on Dell 5100cn


The following steps are the troubleshooting steps that should be followed for error code 010 397.
First, the definition of the failure is <IOT Fuser Failure>, and means a Fuser Error is detected.

1) With power off, reseat the fuser by physically removing it from the printer, then reinstalling it and locking it in place. Turn the power back on. ( if the error is still present, proceed to step 2 ).

2) If reseating the fuser did not resolve the problem, Replace the fuser with a known good fuser.
( if problem is not resolved, proceed to step 3)

3) Replace the LVPS ( low voltage power supply ). ( if problem not resolved, proceed to step 4 ).

4) Replace the PWBA MCU ( printed wiring board assembly - machine control unit ).

END of troubleshooting.........

In most cases, the fuser itself is the problem. If you tried to reseat or replace the fuser while power was still on, the LVPS could have been damaged just as if there were an electrical storm.

Hopefully this helped.

Apr 04, 2008 | Dell 5100cn Laser Printer

1 Answer

Replace low voltage pwer supply


To remove the low voltage power supply, Take off the side covers. the power supply is on the rear right hand side of the printer. Just remove the screw's and the cable's connected to it and your done. Don't confuse it with the Hi voltage power supply which is on the Left side of the printer as your facing it head on from the control panel.

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