Question about Dell 1600n All-In-One Laser Printer

3 Answers

Dell 1600n low heat error

I replaced the fuse with a reman from dell cause I got a open heat error, but now it gives me a low heat error. plug and unplug with no results. the printer is almost 3 yrs old

thanks

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  • noslen wong Apr 02, 2008

    where is the fuser lamp?

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3 Answers

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  • Master
  • 407 Answers

Hi
hope your
printer cooling fan working or not ?
check fuser assy heat register
The following errors indicate there is a problem in the fuser unit.
CRU Fuse Error
[Low Heat Error]
Heating Error
Open Heat Error
[Over Heat]
Suggested solutions include:
Unplug the power cord and plug it back in. If the problem persists, please call for service. &  Dell vender...

Posted on Apr 02, 2008

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  • Master
  • 758 Answers

Sounds like the fuser is not heating up. There's a thermal sensor in it called a thermistor that reads the heat, if it's out of tolerance you'll get a number of errors dependant on the make and model (pretty sure that Dell is a Lexmark with a new paint and name badge). There's also a safety fuse on the fuser that goes open if it gets too hot that has to be replaced if it goes open as it is not resettable. It could also be a bad ceramic element not heating up, a loose connector, etc but the heat error points to the fuser.

Posted on Apr 02, 2008

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  • Dell Master
  • 19,396 Answers

Remove the fuser lamp and put it back in place, it is not heating properly.

Posted on Apr 02, 2008

  • Ginko
    Ginko Apr 02, 2008

    If after ensuring the fuser lamp is in place, you still get the problem, you should check with a tester that the lamp is not blown again. If the lamp is good you should eventually replace the thermistore sensor. If the lamp is blown then you need to check the power coming to the lamp from the low voltage powes supply powering the fuser. This when you burn the new installed fuser.
    If you do not service the printer yourself you can report this solution to the repairman.

    Regards
    I

  • Ginko
    Ginko Apr 02, 2008

    here is a picture of the fuser unit, so that you know how it looks like . Here you can post a request for the service manual, with part list and schematics

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1 Answer

I have an open heat error on my Dell Laser MFP 1600n, can you help ?


Heat errors are usually caused by the fuser (part# N5796). ItemInc.com has this in stock and ships same day for $99. Installation should be pretty simple. On most Dells, the fuser is located on the back of the machine, open the rear door and it is usually held in by 4 screws. Good luck, and thanks for using FixYa!

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The display reads open heat error. What is this and how can i fix it? I do not know where the manual is.


An open heat error on a 1600n printer is a fuser error. You would want to make sure that the printer is not plugged into a UPS or power stripe. You would also want to make sure that there is plenty of clearance around the printer. If these are already in place then the fuser would need to be replaced. This is not normally a customer replacable item.

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1. Please check the thermostat in the fixing unit.

2. It may open due to over heat. replace it. clean thermister.if spoiled replace it also.

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How do I repair an "open heat error"?


I'm sure it's not the answer you're looking for but the "Open Heat" error is related to the printer's fuser, switch mode power supply or temperature control thermistor. More than likely it's the fuser which needs replacing and you'd need to contact Dell for a replacement. If you google for "1600n fuser" you'll also come up with several retailers with fusers in the $80 range as opposed to Dell's $140+.


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1 Answer

My laser printer gives message open heat error how can I fix


This is most commonly caused by a failure of the Fuser unit.
However, in rare circumstances, this can be caused by the Fuser Control section of the SMPS, or the fuser temperature monitoring circuit on the Main Board.
There is a closed control loop:
1. AC voltage is supplied to the Heat Lamp in the Fuser from the Fuser Control section of the SMPS
2. The temperature of the fuser heat is monitored by a thermistor (mounted on the Fuser) connected to the Main Board.
3. The Main Board determines if the fuser temp is too low, correct, or too high and signals the Fuser Control to increase, maintain, or decrease the AC voltage to the Fuser
sorry io say but you had to replace the fuser
call dell costumer support and tell your model no. ask for fuser replacement and they will do it .
Hope your printer is in guarantee period otherwise you had to pay.
REGUARDS

Dec 13, 2009 | Dell 1600n All-In-One Laser Printer

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Just call Dell Tech support. It's in their policies that if you call them and complain about a heat issue, they'll replace the unit for safety reasons.

Cheers.

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the thermal switch on the fuser are damaged. my problem is that I don't know the temperature of activation to this. And do not buy a replacement under this conditions. somebody help me.

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