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Samsung SCX-3405fw Toner not compatible

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Samsung SCX-3405fw

I Replaced the original toner of Samsung SCX-3405fw with a new original one and the printer showed me "Not compatible Toner cartridge". 

 I went back to the seller to have it changed, and replaced with the new one, it worked for a couple of day, but suddenly it gave me the same error.

Because of the urgency, it was lent me a non-original toner, this worked, but the print quality was very bad.
Am I just out of luck (2 bad cartridge in a row) or is there something I can do to force the printer to accept the original toner?

Or is time to buy a new Printer?

I replaced the toner only once in printer lifetime, with no problems, this was the second time... 


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When you open and remove the cartridge, on the right hand side you should see 4 contacts (sort of bent springs) , unplug the power and try cleaning the 4 springs with a Q-tip slightly soaked in alcohol. Some times it helps

I`m not a HP technician.
Just a electronics enthusiast .
If i helped, please hit that Kudos button 🙂
If i solved your problem, please mark your thread solved 🙂
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