Service Mode - Brother HL-3450CN Service Manual

CHAPTER 5 CONTROL PANEL OPERATION
3.3

Service Mode

Service Mode is a unique mode for the maintenance of the printer only, without the video
controller card. In this mode, you can check the operation status of the printer engine Off-line
and also carry out maintenance work for each of the printer components.
Procedure
How to designate the necessary mode
(1) Press the Back and Set button so
that service modes (a), (b) and (c)
show up in sequence to be selected.
(2) After selecting the desired mode,
execute the selected mode by
pressing the Reprint button.
(3) Press the - button to exit the mode.
(1) Hold down the Secure Print, Back and Set buttons and turn the printer Power
on.
(2) Using the -, Reprint, Back and Set buttons, select the mode necessary for the
maintenance work from the test list shown in Table 5-2.
SERVICE MODE
(a)
TEST PRINT
SERVICE MODE
(b)
NEXT CARE INFO
SERVICE MODE
(c)
FACTORY MODE
5-20