Inspection Mode; Incorporated Inspection Modes - Brother HL-730Plus Service Manual

4.

INSPECTION MODE

4.1

Incorporated Inspection Modes

The printer incorporates the inspection modes such as the factory inspection mode and the
test print mode. The inspection mode varies with the model of the printer.
HL-720:
HL-730/730Plus:
The operation of the inspection mode is as follows.
(1) Turn off the power of the printer.
(2) With the top cover open, turn on the power while holding down the button of the
operation panel.
When entering this setting, DRUM LED is ON. While holding down the button, LEDs
go ON in the order of DRUM -> ALARM -> READY -> DATA -> DRUM. If you release
the button, a mode is selected. The mode selected is indicated by the LED which is
ON when you release the button. The inspection modes are assigned to the
respective LEDs as shown below.
HL-720:
DRUM
ALARM
READY
DATA
HL-730/730Plus:
DRUM
ALARM
READY
DATA
Details of the factory inspection mode are as follows.
This mode is used to check if the sensors in the printer function correctly. On the process
of this inspection, LEDs and buttons are also checked. On entering this mode, the LEDs
show the status of respective sensors as follows.
Factory inspection mode and Continuous test print mode
Factory inspection mode, Continuous grid pattern print mode, 3
patterns print mode and NV-RAM value dump mode.
LED Type of inspection
Factory inspection mode
Continuous test print mode
Not defined
Not defined
LED Type of inspection
Factory inspection mode
Continuous grid pattern print
mode
3 patterns print mode (black,
grid and horizontal lines)
NV-RAM value dump mode