Brother International HL 1240 Service Manual - Page 156

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 Ready Alarm Data 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; LED Type of inspection Drum Factory inspection mode Ready Continuous grid pattern print mode Alarm 3 patterns print mode (grid, zip, black) Data NV-RAM value dump mode** Drum + Ready ROM code reprogramming mode (only when flash memory is fitted) Ready + Alarm RAM check Alarm + Data 4% density pattern print mode **NOTE: The NV-RAM value dump mode is not incorporated in the US model. 6-46