Samsung Printer Hack – ML-1640

This morning when I was printing all of a sudden the printers low ink indicator light turns on (toner exhausted) even though there is a lot of ink left in it. When I press and hold the printer button it printed a message saying toner exhausted, service printer. The printer has printed 2100 sheets and it needs a servicing.

The printer is more than a year old so it has no warranty. This is a way to discourage refilling of cartridges. The sad part is that even if you change the cartridge it will not reset on its own. It needs to be serviced by a technician.

Anyways I read a few articles on the net and found an interesting hack. Here is what I did… inlcudes reviews on the best air compressor on the market and much more.

First of all open the back panel of the printer…

Now locate the IC 93C66. This is an EEPROM that the printer uses to store the number of sheets printed.

Now short the pin number 1 and 4. These pins are the Chip Select pin and the Data pin. So when the main micro controller tries to read the number of sheets printed it will not be able to do so.

Connect back the printer and it should work just fine after this. I enjoyed doing this hack… thought I will share it!

21 thoughts on “Samsung Printer Hack – ML-1640”

  1. ML 1640 Printer not good (LSU Error)as u have to purchase chip after refilling thus u pay more for cash & time also thus sasta printer pad gaya mahenga (competing with other brand) as localy the chip is also not available forsince 30 days i m waiting for repair.

  2. bro i thank u from my bottom of my heart i was in a gr8 probz actually i thought the ink got finished but previously i got a msg that toner exhausted so i really got distressed and i came to your thread and i thought that i got same probz so i tried and it worked i m really really thankful to u if i didint get that day i would hav failed coz i need to print project thnx a lot thnx

  3. dear sir,
    i am use to samsung ml1640 printer sir thise printer give me back to back tonner exhosted report.one tme give me toner exhosted report so that time i repliced the tonner.so that time printer print very well and that after me two times refill tonner when printer working very well.but now printer give me tonner ex.report.and show red ligt and not collect paper.so pls help me

  4. After Shorting the Pins Permanently also the LED stays green to Some time and then gives the error :”INVALID TONER “…Pls help (Reply)

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