Question Brother MFC-9335CDW printer says "WT Box End Soon" ?

[zillah]

Hi folks

I used to have a Brother MFC-9330CDW Printer since 2015.
I never replaced the Waste Toner Box. Yes, I did replace the drum once and now I have disposed of that printer.

Now I have got two almost new Brother MFC-9335CDW Printers from my friend which were sitting in his workshop storage for a while as he is using two industrial printers now.

The message that I am getting on one of these MFC-9335CDW printers is : "WT Box End Soon"

I followed these links:

Below is what I had checked on the Waste Toner Box:

https://imgur.com/a/pl1v9Pu

Can you advise what else I am missing to check ?
Is it a false positive warning or do need to replace the Waste Toner Box ?


Thx

 

[ex_bubblehead]

The waste toner box is considered a consumable. When the printer says it's full then replace it. Do not try to do an end run around the message.

 

[zillah]

Noted
Thx

 

[zillah]

Two almost new Brother MFC-9335CDW Printers

Since I have 2 same models I swapped the WT box between the one with no error let us name it as A to the one that has an error message let us name it B ,,,,,,now both machines have the same errors
My interpretation to that the the WT box on machine B needs to be replaced and machine B has a problem as well (because error message didn't get cleared when we used good WT box ) ?