Inspection Mode - Brother HL 1240 - B/W Laser Printer Service Manual

CHAPTER 6 TROUBLESHOOTING
9.2

Inspection Mode

The printer incorporates various inspection modes such as the factory inspection mode and
the test print mode.
The printer supports a factory inspection mode, continuous grid pattern print mode, 3 patterns
print mode and NV-RAM value dump mode.
Select the inspection mode you want to use following the steps below;
(1) Turn off the power switch of the printer
(2) Open the front cover, and turn on the power switch while holding down the control panel
button.
(3) When the printer enters into the inspection mode, the Drum LED is ON. Holding down the
panel button will cause the LEDs to turn ON in the order Drum
®
Drum. When 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;
Drum
Ready
Alarm
Data
Drum + Ready
Ready + Alarm
Alarm + Data
**NOTE:
The NV-RAM value dump mode is not incorporated in the US model.
LED
Factory inspection mode
Continuous grid pattern print mode
3 patterns print mode (grid, zip, black)
NV-RAM value dump mode**
ROM code reprogramming mode (only when
flash memory is fitted)
RAM check
4% density pattern print mode
Type of inspection
6-46
® ® ®
Ready Alarm Data