Inspection Mode; Incorporated Inspection Modes - Brother HL-1070 Service Manual

6.

INSPECTION MODE

6.1

Incorporated 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 turn ON in the order Drum


Data
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.
Drum
Alarm
Ready
Data
Drum + Alarm
Alarm + Ready
Ready + Data
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.
Drum. When you release the switch, a mode is selected.
Lamp
Factory inspection mode
Continuous grid pattern print mode
3 patterns print mode (grid
NV-RAM value dump mode
ROM code reprogramming mode (only
when the flash memory is fitted)
RAM check
4% density pattern print mode
Type of inspection
IV-27



Alarm Ready
zip black)