Brother HL-5050 - Manual (Page 87)

CONTROL PANEL 3 - 5
Service call indications
If there is an error that cannot be put right, the printer will show that a service call is needed by lighting
up all the LEDs as shown in Figure 3-12.
Figure 3-12
If you see the service call indication above, follow the steps below:
1
Take out the DIMM (Dual Inline Memory Module) from your printer, if you have a DIMM installed.
2
Turn off the power switch, wait a few seconds, and then turn it back on and try to print again.
If you cannot clear the error and see the same service call indication after turning the printer back on,
call your dealer or a Brother authorized service representative.
When you press the Go and the Job Cancel buttons together, the LEDs will light up with one of the
combinations shown in Table 1: LED indications after pressing Go and Job Cancel on page 3-6 to
explain the error.
For example, the LED indication below shows a fixing unit failure.
Figure 3-13
Toner
Drum
Paper
Status
Toner
Drum
Paper
Status