Brother HL-5590DN Service Manual

5-10
Confidential
1.3.4 Check LCD operation (function code: 12)
<Function>
This function is used to check that the LCD on the control panel is operating normally.
<Operating Procedure>
■ LCD
<Non touch panel models>
Fig. 5-4
Non touch panel models
(1) Press the [▲] or [▼] key in the initial
state of maintenance mode to display
"MAINTENANCE 12" on the LCD, and
press the [OK] key.
(2) Each press of the [Go] key cycles
through the displays as shown in the
figure below.
(3) When you press the [X] key, the
machine returns to the initial state of
maintenance mode, regardless of the
display status.
Touch panel models
(1) Press the [1], and then the [2] key in
the initial state of maintenance mode.
(2) Each press of the [
˄ ] key cycles
through the displays as shown in Fig.
5-5. Also, pressing the [
˅ ] key returns
the LCD display to the previous state.
Pressing the [
˄ ] key at the end of
display returns the display to Display
1.
(3) When you press the [X] key, the
machine returns to the initial state of
maintenance mode, regardless of the
display status.
Display 1
Display 2
Display 3
<Display 4>
Back light: ON (white)
LCD: Hides all dots
Display 4
<Display 1>
Back light: OFF
LCD: Displays all dots
<Display 2>
Back light: OFF
LCD: Displays 16 frames
in a line
<Display 3>
Back light: OFF
LCD: Displays no dots

Brother HL-5590DN Specifications

General

Brand	Brother
Model	HL-5590DN
Category	Printer
Language	English