Check Fan Operation (Function Code: 78) - Brother DCP-7080 Service Manual

1.3.25 Check fan operation (function code: 78)

<Function>
This function is used to check that the fan is operating normally. Switch the setting among
rotation speed 100%, 50%, and OFF.
LCD
F
<Operating Procedure>
For models without keypad
(1) Press the [▲] or [▼] key in the initial
state of maintenance mode to display
"MAINTENANCE 78" on the LCD, and
press the [OK] key. "F100" is displayed
on the LCD and the fan rotates at 100%
speed.
(2) By pressing the [Start] key, "F50" is
displayed on the LCD and the fan
rotates at 50% speed.
(3) By pressing the [Start] key, "F0" is
displayed on the LCD and the fan stops.
(4) When the [Stop] key is pressed, the
machine stops this operation and
returns to the initial state of maintenance
mode.

Fan location
Name
Fan
Fan
Description
Emits the heat in the fuser unit.
For models with keypad
(1) Press the [7], and then the [8] key in the
initial state of maintenance mode.
"F100" is displayed on the LCD and the
fan rotates at 100% speed.
(2) By pressing the [Start] or [Mono Start]
key, "F50" is displayed on the LCD and
the fan rotates at 50% speed.
(3) By pressing the [Start] or [Mono Start]
key, "F0" is displayed on the LCD and
the fan stops.
(4) When the [X] or [Stop] key is pressed,
the machine stops this operation and
returns to the initial state of maintenance
mode.
Exhaust
Fig. 5-20
5-47
Confidential