On 13/01/20 09:23, ss wrote:
On 13/01/2020 08:48, Jeff Layman wrote:
Have you updated the printer driver recently? I have an ML-1640 which
has a chip page counter. I "inactivated" it by short-circuiting a couple
of pins. However, Samsung evidently did a driver update which got round
this. Fortunately, I heard about the update and never installed it.

It might be worth searching online to see if anyone has experienced your
problem and found a way round it (that's how I found out about the chip
short-circuit to reactivate my laser printer).

I am not aware of knowingly updating drivers.
I know of the short circuiting fix but doesnt apply to this model, I
would probably be reluctany to attempt that.

I think you'll find it does apply:
https://www.fixyourownprinter.com/forums/laser/72904

Quite a few comments about further fixes, but if you aren't happy
attempting the chip short-circuit it isn't going to help anyway (there
are a few videos on YouTube showing how it is done). Might be worthwhile
checking the printer OS against the list on that page to see whether or
not the fix would work in any case.

The page it will print off states:
Toner page count/toner 6002/0% toner exhausted.
Initial page count 972
Cartridge capacity: not support
Dot /OPC count : not support/not support
Cartridge s/n : not support
Supplier: toner exhausted.
Manufacturing date: not support

--

Jeff