The Toner (Yellow), Drum (Yellow) and Paper (Yellow)
LEDs are flashing.
The Ready (Green) LED is flashing.
Meaning of LED Indication:
Self-Diagnostic
The temperature of the fuser unit does not rise to a specified temperature
within the specified time or the fuser unit is too hot.
Press and hold (Power On/Off) to turn off the machine, wait a few
seconds, and then turn it on again. Leave the machine idle for 15 minutes with
the power on.
Print Unable XX
The printer has a mechanical issue.
The LED indication information was sourced from the Brother website, more
information may be available by following the link below.
http://support.brother.com/g/b/imglist.aspx?c=gb&lang=en&prod=hll2300d_us_eu_as
&ptn=2