Question about Samsung SCX 4521F All-In-One Laser Printer

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Samsung SCX5115 printer

Shows OPEN HEAT ERROR and will not print. What causes this and how much is the replacement parts?

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Re: Samsung SCX5115 printer

I have a samsung lazerjet scx 4100printer,My printer problem is heat open error after power on,ple help me

Posted on May 14, 2009

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Re: Samsung SCX5115 printer

Open heat error means that you fuser assembly has a problem and needs to be replaced cost will be 150-250 for the fuser

Posted on Dec 01, 2007

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Printer is showing Open Heat Error & it is not getting solved

Open Heat Errors on the Samsung 4200 are caused by an interuption in powerflow thru the fuser unit. This is caused by one of two things. 1) The Power supply board is not putting out enough power to the fuser unit. 2) The fuser unit has a bad heat bulb or thermister. You can not really check these effectivly without having either replacements on hand or the full tech sheets and a multimeter. I am sorry to say buying a new printer or a replacement fuser unit will be your best bet.

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Disassemble fuser and inspect thermistor, thermostat and heat lamp. Replace broken part.

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this is a fuser problem. Maybe lamp is broken or heat sensor didnt work properly.
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Just visit authorized service - my advice!

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You need to replace the fuser in the printer, the part number is JC96-03406A You can do a google search for the best price.

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Hy i had the same error message the error comes from the fuser unit , the halogen lamp is not heating , on the top of the fuser unit is a Thermostat in series with the halogen lamp wich u have to replace. Its not that easy if you dont have experince but it will solve the heat error. I hope this helped

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when i on my scx-4216 samsung laser printer it show on screen open heat error on display screen
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Open heat error, you have a fuser problem, replace fuser. Fuser consists of Upperheat roller, lower heat roller, exit claws/rollers, and a heating circuit with a lamp, thermal temp sensor (thermistor) and a thermal fuse/cutout.

You could measuring fuser removed from machine, checking lamp etc for open circuit, thermistor should be neither short or open circuit.

These days we dont, we just change assembly due to it being a common constantly wearing part, and if for example I pull it apart, fix the lamp, put it together then soon enough I will need to pull it apart again to fix worn roller etc.

I could give you the part number ... JC81-01690A but dont use it, cause that part is for 220volt cause thats what we use in Oz, so contact Samsung and ask for dealer in your country who can supply you.

P.S. Fuser is the Hot bit (180 deg c) at back near paper exit that bonds(melts) the print into the paper.

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