If you own Brother printer and your
printer showing low toner warnings even if you know that the toner
cartridge should not be near the end of its useful life. This problem
has been observed in various brother printer families. It happens due
to a sensor in brother printer toner that is meant to indicate that
the toner in the cartridge is running low. This warning can be
bypassed by blocking the line of sight between the sensor on the
cartridges and the sensor in the machine. Read more at below given
link.
