Brother HL-2400C - 2 Video Controller Mode; Configuration of Operational Mode

V-2
2. VIDEO CONTROLLER MODE
This section describes the operation and maintenance functions in the Video Controller
Mode.
2.1 Configuration of Operational Mode
This printer has various functions as set out in Table 5-1 for users to easily perform
general test printing, general settings and some maintenance work.
(1) Normal Mode: After turning on the printer, the printer goes into Normal Mode.
This mode provides normal printing for the end user. The
following section describes the toner save mode and the power
save mode. For other modes, refer to the user’s guide.
(2) Line Test Mode: This mode provides a self-test for each function in the Video
Controller Mode mainly for use when replacing the main (video
controller) PCB.
Whenever the video controller is replaced, these checks should
be carried out.
This mode provides performance tests for the engine LCD,
control panel buttons and various sensors.
(3) DRAM Test Mode: This mode is provided to test the memory and any installed
SIMM(s) on the main (video controller) PCB.
(4) Program Version Display Mode
This mode displays the firmware version of the video controller
and engine controller.
(5) Test Print Mode: This mode allows you to print the selected test pattern
continuously in order to check the engine.
(6) NVRAM Reset Mode:
This mode forces the NVRAM values of the video controller to be
reset to the factory settings.
When replacing the main PCB, the NVRAM value is
automatically reset to the factory setting. However, this mode is
effective when the video controller does not work due to errors.
Table 5-1
Power on Normal Mode
▲ + Power on
Line Test Mode
▼ + Power on
DRAM Test Mode
Font + Power on Program Version Display Mode
Font + ▲ Power on
Test Print Mode
Set + Power on NVRAM Reset Mode