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1.3.19 Check main fan operation (function code: 78)
<Function>
This function is used to check that the main fan is operating normally. Switch the setting
among rotation speed 100%, 50%, and OFF.
<Operating Procedure>
LCD Name Description
F Main fan Emits the heat in the fuser unit.
Non touch panel models
(1) Press the [â–²] or [â–¼] 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 main
fan rotates at 100% speed.
(2) By pressing the [Go] key, "F50" is
displayed on the LCD and the main
fan rotates at 50% speed.
(3) By pressing the [Go] key again, "F 0"
is displayed on the LCD and the main
fan stops.
(4) Press the [X] key, and the machine
returns to the initial state of
maintenance mode.
Touch panel models
(1) Press the [7], and then the [8] key in
the initial state of maintenance mode.
"F100" is displayed on the LCD and
the main fan rotates at 100% speed.
(2) By pressing the [Mono] key, "F50" is
displayed on the LCD and the main
fan rotates at 50% speed.
(3) By pressing the [Mono] key, "F 0" is
displayed on the LCD and the main
fan stops.
(4) When you press the [X] key, this
operation is finished and the machine
returns to the initial state of
maintenance mode.
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