Brother HL-1020, HL-820, HL-1040 manual Incorporated Inspection Modes, Lamp Type of inspection

6.INSPECTION MODE

6.1Incorporated Inspection Modes

The printer incorporates various inspection modes such as the factory inspection mode and the test print mode. The inspection mode varies depending on the model of the printer.

This printer supports a factory inspection mode, continuous grid pattern print mode, 3 patterns print mode and NV-RAM value dump mode.

The operation of the inspection mode is as follows.

(1)Turn off the power switch of the printer.

(2)With the top cover open, turn on the power switch while holding down the switch on the control panel.

When you enter this inspection mode, the Drum lamp is ON. Holding down the ￿panel switch will cause the lamps to turn ON in the order Drum ￿Alarm ￿Ready

Data ￿Drum. When you release the switch, a mode is selected.

The mode selected is indicated by the lamp which is ON when you release the switch.

The inspection modes are assigned to the respective lamps as shown below.

Lamp	Type of inspection
Drum	Factory inspection mode
Alarm	Continuous grid pattern print mode
Ready	3 patterns print mode (grid, zip, black)
Data	NV-RAM value dump mode
Drum + Alarm *	ROM code reprogramming mode (only
	when flash memory is fitted)
Alarm + Ready *	RAM check
Ready + Data *	4% density pattern print mode

* Note: For the HL-1050 printer only.

Details of the factory inspection mode are as follows.

This mode is used to check if the sensors in the printer are functioning correctly. In the process of this inspection, the lamps and the switch on the control panel are also checked. On entering this mode, the lamps show the status of the respective sensors as follows;

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