How to check a printer fuser unit

How to check the fusers of a printer or a copier: upper fuser roller, lower fuser roller, heater roller, fuser sleeve, thermistor, heater lamp, heater element. How to identify where's the problem when a fuser unit is defective.
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[@coldblackice]

Excellent video, gets straight to the point and does a great, thorough job of hitting all the possibilities/areas.

[@alfredwolpe5758]

Great clip, very informative and gave me a great general knowledge of how a fuser unit operates, many thank acurate and too the point.

[@turkerozturk6889]

A lot of information. Thank you too much. I came here while searching for any descripton to "adjust fusing unit" option of my xerox printer.

[@abrahamkosgei3449]

Great job, thump up .......we need more of photocopier tutorials.

[@mtechtoner6947]

Thanks A Lot. Really Informative And Helpful. Cheers!

[@billyshears2286]

Thank you for posting this .. very informative.

[@leenorman7732]

Excellent knowledge to possess.

[@tonysmith4949]

Thanks a lot. It really helped me.

[@Veto2090]

thank you, really informative

[@SergeiKozak]

Very useful guide.

[@eastbaywardclaritywhiteriv4693]

amazing info, Thank you!

[@nusyil]

Great job, thanks!!!

[@eloyruiz2855]

Thank you for this information

[@petromic1947]

Awesome thanks for the post

[@netgenious]

Excellent!!!

[@MultiGrony]

Great tuts.

[@Tiberiu859]

Thank you very much for this elevated technical presentation. He helped me a lot. A new friend from Romania.

[@user-bg4is7bv7n]

Good explanation

[@johnng2034]

Excellent video.. been wondering what happen to my old Xerox DocuPrint 2605, always have smudging print out and the powder dont stick well to the paper...

[@7207691302]

Exellent bro

[@syedimtiazali9933]

Best video

[@redpost2380]

Viandant5 your passion and knowledge of printers is remarkable. excellent video. In some printers (dell 2350dn) there is no separate counter for the fuser. The web interface page displays the life of the fuser left...say 60%. If the printer has done 45k copies, it means that the fuser life is estimated at 80-100k. Does this mean that when the fuser life is zero% the printer will stop working? Many printers have a fuser reset procedure but not this dell. thank you

[@viandant5]

Yes, you'll have to change the fuser unit. I don't know any reset procedure for this machine

[@redpost2380]

@@viandant5 My concern is that I might change the fuser and find that the PCB blocks the machine when the fuser life is 0%. It is strange that Dell has no fuser counter but ONLY a page counter which is used to tell you how much life is in the fuser. Have you come across any printer that has no fuser reset feature and blocks the machine when fuser life is 0%?

[@viandant5]

@@redpost2380 most of the printers have no fuser reset feature. the producers want you buy the fuser unit

[@redpost2380]

@@viandant5 Yes but how does the PCB know that you have changed the fuser? How does the FUSER LIFE % change from 0% to 100% if there is no fuser page count? It's funny for this Dell printer: You cannot find new 230V fusers. They sell plenty of 110V ones for the US market but the only one I found online is an aftermarket 230V fuser in the UK for over 300GBP!! I guess I will buy a 110v fuser and then insert the heating element on my 240v old fuser.

[@viandant5]

@@redpost2380 There could be a resistance or a resistor or a component inside the fuser unit that tell the printer that there is a new fuser, but I don't know very well this unit so I don't know which is the exact method

[@frankd.9890]

Very informative video. I have an HP 3030 multi-function printer that prints blank pages. I bought two different original HP toners to make sure it was not the toner but did not fix the problem. Do you advise to replace the fuser? Thank you.

[@viandant5]

No, a blank page is not related to the fuser. It could be the laser unit, the main board, even the firmware.

[@sokhonshow]

Good

[@paulfloyd228]

Thank You very informative! I have a question though, is it possible to buy replacement thermistors and if so where from? my new Xerox Phaser 6510 has wrecked one of the fuser thermistors. Regards Paul

[@viandant5]

You can try to find it on alibaba, aliexpress or searching with google avoiding ebay.

[@julikb]

SUPERCONTENT

[@rawshantraders2780]

Excellent Video. My printer is HP laserjet p4015x. After print any document if i rub the printed page then the ink fade away. what should i do?

[@viandant5]

It's probably a problem related to the fuser unit. Check the rollers, are they worn or dirty? It could be the heating element or the thermistor too

[@simonogenche913]

How do one check using serial number to verify if that part came from kyocera

[@techie587]

What lubricant should be applied for with standing heat in Teflon sleeve?

[@viandant5]

On the heating element you should use hight temperature grease

[@blady416]

Great information ! I have a question , I am using a icolor 550 , and when I print on transparency paper, it appears that toner particle scratch the glossy paper making the transfer useless as those scratches damage the actual print quality . I cleaned all the rollers and the issue still . It is also smudging the prints on the right side of the paper . What could possibly be bad? Thank you again

[@viandant5]

Probablyu that rrasparencies are not suitable for that print, may be they are for inkjet printers? I would check if in the printer folder there are settings for that special paper

[@blady416]

viandant5 hi , the transparency are made by the same company that manufactures the printer which is Uninet . Why do you think the smudges come out on the right side ?

[@viandant5]

I think you have to use original toner cartridges. For some special purposes compatible cartridges are not good

[@IlackyRare]

Nice video.. please could you assist me with how to fix the overheating problem of the fuser unit which causes papers to crush. The machine is Konica Bizhub c364e

[@viandant5]

Are you sure the problem is an overheating? Are the fuser rollers worn? ALso check the paper fingers

[@natashacarman7268]

I have a brother MFC 6700dw that is getting creases on the right side of the paper. I have checked everything and I am wondering if it could be the fuser? Brother support told me it was my print drivers but they are up to date and I just don't see how that could be. Thank you

[@viandant5]

It's not the printer driver for sure, how can they told it? Check if there are foreign objiects along the paper path, check the paper finger where the paper go out from the printer. it could be a fuser problem, check if the fuser rollers are clean

[@keilo88]

Great video on printer fuser unit! I have Ricoh Sp 1200 SF (Brother OEM) which when first powered on goes to the pre-heating with a rather loud motor noise and immediately shows Unable to Print 71. I have dismantled the Fuser to take voltmeter readings for resistance. Thermistor value changes .1 or .2 at most in 29 C room temperature. But Thermostat read 1Megaohm; Fuser sensor readings: Thermistor: 296.1 kOhm Thermostat: 1.013 Mohm (???) Do you think its the thermostat or something more complicated like the laser motor ?

[@viandant5]

That erros means a mechanical problem, it could be not related to the fusers or electronics. May be a gear

[@keilo88]

@@viandant5 Thats what I first looked at but I cant find or hear a gear at fault. However the thermistor and thermostat (especially thermostat in megaohm) reads higher. Do you think that could be an indirect issue? Or is the readings somewhat ok?

[@viandant5]

@@keilo88 The defective gear could be in the machine too. The thermistor or thermal fuse may be could give that type of error code but not the noise

[@eduardojosedelcerro4034]

Thermostat wil read near 0 ohm (short circuit) Sorry my bad english.

[@kamdavegun9526]

great video. One of the gears on my Oki c822 fuser unit is really stiff so my printer can't move it but I can hear it trying, does this mean the bushes or something further inside needs replacing or is there a clip or something to release the gear? thanks

[@viandant5]

I think there will other parts to be replaced, the bushings of the rollers first

[@MainhoonGiyaan]

Sir, please provide the online buying link of the fuser assembly unit of Samsung ML1676p

[@viandant5]

I think it's the same as Samsung ML1660, probably it's easier if you search the fuser for this machine

[@SamytheBullFitness]

Hi, my customer's Xerox Phaser 6510 is printing fine the first few pages, afterwards the toner doesn't seem to bond to the paper, does the fuser need to be replaced or do i adjust the temparature? thx

[@viandant5]

It's a typical fuser unit defect. Probably the fuser must be replaced. It could be toner or drum too

[@SamytheBullFitness]

@@viandant5 i replaced the toner thinking it was it, since there's a lot of toner residue on the paper once a few pages print, the first few pages come out fine, after it starts degrading :( there are toner spots on the paper and images comes out very bad, same in black and color. I'm tempted to say the fuser doesn't heat enough after a few pages..

[@coscoprintsandads2956]

Hi is this same with docu center c2270 model of fuji

[@viandant5]

Yes it could work

[@robadn1127]

Dear Gianni, I have a Samsung CLP 365W and the fuser unit is the problem. I have cleaned it but still the same message. The rollers are fine no defects. As a replacement fuser is quite expensive I would like to check if the lamp or the sensors are not working correctly and if they can be replaced. Can you tell me how to disassemble the fuser unit and how to check the lamp and the sensors? Can you also tell me where I can find replacement parts of the fuser unit? Do you supply those? .

[@viandant5]

Which is the error message? here you can find how to disassembly the printer kzbin.info/www/bejne/a6bHh6mcZraGe7c. I have no part of this fuser unit. Check the thermistor, may be it's dirty

[@muhammadzeeshanarif7896]

Greetings Brother! I have bought HP Laserjet P3015. But I don't know that it is either 120V or 220V. I supplying it 110V but sometimes 50.1 Fuser Error Occurs.

[@viandant5]

It could be a thermistor problem

[@muhammadzeeshanarif7896]

@@viandant5 Would it be okay if I supply it 220V?

[@viandant5]

@@muhammadzeeshanarif7896 Probably not. 220V will destroy a 110V fuser

[@muhammadzeeshanarif7896]

@@viandant5 Thanks for guiding!

[@ssemitra7043]

i have konica minolta bizhub printer. the heater roller couldn't pick up the paper in time so that paper gets folded between fuser unit and drum. should i lubricate fuser unit gears and how

[@viandant5]

It could be a problem related to the paper pick-up fingers, dirty or worn out, or damp paper.

[@ashokkumar-yi6pn]

always display of ricoh 210 printer showing initializing and even not showing the next steps of please wait and warming up also what could be the problem

[@viandant5]

I think you have problems with the fuser unit

[@arjuns9170]

Bro i need help paper folding jam in fuser unit how can rectify

[@viandant5]

try to clean the paper pick up fingers, change paper

[@royjohnson8122]

I just love the robot voice.... You can't talk for 2 minutes? The computer doesn't even get the words right.

[@viandant5]

my voice is worst

[@mohammedm.m.alrawhani4178]

Now I know why paper jam happening, so the only solution is the adding the metal wire

[@sandunkumara89]

Why does the fuser smoke when the power is on.It happens only if the toner is installed and also a bad smell comes out. when I remove the toner it does not smoke

[@viandant5]

it's not a problem, probably the environment is too humid

[@freefriend1]

sir print par toner hat raha hai kya kharabi ho sakti hai plz reply

[@bikashghatani807]

ricoh spc 250dn color overlaps and also error SC 542

[@viandant5]

error SC542 could mean thermistor broken or dirty, or fuser lamp problem

[@bikashghatani807]

okay and what about color overlapping , double color of Ricoh spc 250 dn

[@bikashghatani807]

please help me out for both this ricoh printer problem(color overlapping, double image problem, i have tried every possible source

[@viandant5]

@@bikashghatani807 Did you already tried a toner calibration? check the movement of the drum, check the belt unit

[@bikashghatani807]

yes sir i have changed the belt but this sp c250 dn takes automatic calibration, i cannlt find a way to solve it

[@techsolgoy87]

I have printer HP LJ P1008. In it 2nd paper gets stuck everytime printed. While printing paper pickup tray keeps on jumping from top to bottom like in normal single time paper pickup it happens only at start of paper picking. But in my printer case it keeps on taking paper . Can you help me on this ??

[@viandant5]

Check the paper settings. Is A4 sheet selected?

[@victorpellegrino9259]

Hello, I have a HP laserjetpro M281 with a 50.7 error, it is fuser related but I don't know what to do to repair it, do you have any ideas ?

[@viandant5]

50.7 error could be related to a photosensor but there is not a trick that solve everything.

[@victorpellegrino9259]

@@viandant5 Hello, thanks for your response. In the case it is a photosensor, I just need to find it on the fuser and fix it. No need to change the whole fuser ?

[@viandant5]

​@@victorpellegrino9259 Yes. First of all however try to clean the thermistor and the thermostat, they causes lot of defects

[@neerajtamrakar2193]

Ink is not sticking on butter paper or plastic paper i.e. master What is the fault behind this Simple paper is print correctly

[@viandant5]

it depends on which printer do you have. may be the fusers

[@lakshmisri9124]

Sir i have Koycer 3212i in that paper jams at fuser unit, paper enters in unit jam when egde came out of unit , how i solve this problem. Help me sir

[@viandant5]

Are the fuser rollers worn? Is the selected paper size correct? Check the separation fingers

[@SatishKumar-vq7ms]

Hot roller gear is melting... What is solution

[@viandant5]

you have to change the gear and the bushing

[@abiesalba100]

Hello. I have a Samsung SCX 4623F that shows me the 02-000 error, which after googling it, seems to be related to the fuser. I ordered a new fuser from aliexpress, which arrived only after a few days. The fuser looks pretty much the same, but one of the two connectors, the bigger one, does not fit in the socket. Can you explain please how the connectors of a fuser work?

[@viandant5]

Are you sure you ordered the correct voltage, 110V or 220V?

[@abiesalba100]

@@viandant5 I ordered the 220 V one and this is what the label also says.

[@viandant5]

@@abiesalba100 which is the code of the fuser unit? It could be something like JC91-00945A

[@abiesalba100]

@@viandant5 Thanks for your reply. The serial number of the new fuser unit is: CNG 1JC9100945BD6HCB520006.

[@viandant5]

@@abiesalba100 There must be a code, not the serial number. However you can use that fuser unit for spare parts. This error could be related to the heat lamp, but there could be a defective main board too

[@seleshmekonnen8684]

it is good but how can we solve error 13.99

[@viandant5]

it depends on which printer do you have

[@BabluKumar-ny3hz]

I have 1005 printer 5-10, 20-30 pages print and after it show error paper in jam Say sir how to solve this problem

[@viandant5]

In which position the paper jam?

[@mixpotato23]

Hello, could you help me? I have Brother H-2321D. Problem: All led blinking and fan full spin. According to manual: thermistor temp error. Heater heating up. I checked thermostat: works ok Thermister: Multimeter under 2M ohm range gives value .350. When I heat it up (under 20k range, value is 8k). Is the thermistor faulty? I can't find thermistor near me. Have to replace the whole fuser unit which is expensive. Any idea how to solve this? Solved: the above thermistor value is ok condition for my model. Thermistor centre and side: Ok Thermostat: Ok Heater element: Ok (as my fuser was heating up). The problem was due to faulty flex cable (the one that connects from paper eject pcb assy to the main pcb assy). The continuity failed that's how I came to know.

[@viandant5]

The value should decline if heated. The error codes descriptions are really vague. It could be a fuser roller or heatert element that does not heat well so the thermistor does not read the correct value so it's not sure that changing the thermistor you solve the problem

[@mixpotato23]

@@viandant5 thank you for the promt reply. I got mine fixed. Flex cable points were missing internal connection due to repeated dissaembly. They seem to be very fragile. I just soldered small wires to missing line (otherwise takes forever to delivery stuff). Thanks again for the tutorials. They were very helpful.

[@Tremor244]

I go to scan a document on my printer.... My printer: warming up Bitch why do you heat up when I don't even want to print. This unnecessary heat up cycle only wears out the fuser faster, such a dick move, seriously...

[@luisonas3708]

My fuser unit shows code when I place it in the di-machine

[@viandant5]

which code, which machine...

[@TheTradrjeff]

I hate liberty mutual commercials

[@volatilepersonas]

Thanks A Lot. Really Informative And Helpful. Cheers!