Brother HL-4000CN Service Manual page 313

A B
2.6.3 Tray3 paper stacking
TRAY3 SENSOR AND SWITCHES
1
OPERATOR
LOADED PAPER
2
B
3
DRIVE PWB
PL15.1
J83
3
BLU
DC COM
4
(CH1.1)
DOUBLE
PLUG
J8220
5 3
BLU BLU
+3.3VDC
(CH1.1)
6 2
BLU BLU
DC COM
(CH1.1)
5
8
BLU
+3.3VDC
(CH1.1)
9
6
BLU
DC COM
(CH1.1)
C D
A
TRAY3 SIZE SWITCH
ASSY
PL17.2
SW1
SW2
SW3
J831
2
BLU
DOUBLE
TRAY3 NO PAPER
PLUG
SENSOR
J832 P8220 J8220
PL17.3
1 3 1
BLU
A
P8220 J832
1 3
2 2
TRAY3 LOW PAPER
SENSOR
PL17.3
J833
1
GRY
B
J833
3
BLU
2
BLU
VI-16
E F
1
DI-28
DRIVE
PWB
CONNE
TRAY3
PL15.1
CTOR
SIZE SWITCH1
J831 ON(L) +3.3VDC J83 1
J81 J810 P810
8 B6 B8
4 YEL YEL YEL
BLU BLU
TRAY3
SIZE SWITCH2
ON(L) +3.3VDC
2 9 B5 B9
3 YEL YEL YEL
BLU BLU
TRAY3
SIZE SWITCH3
ON(L) +3.3VDC
4 10 B4
B10
1
BLU
BLU YEL YEL YEL
DI-13
TRAY3 NO PAPER
SENSED(H) +3.3VDC
7 15 A12 A3
BLU YEL YEL YEL
DI-17
TRAY3 LOW PAPER
SENSED(H) +3.3VDC
10 18 A5
A19
YEL
GRY YEL YEL
Refer the relationship
1 between the status of TRAY3
SIZE SWITCH ASSY and display
of Diagnostic code "DI-28".
2.6 Paper Supplying
G H J
TRAY3
PAPER STACK
POSITIONED
MCU AND HVPS PWB
PL15.1
2
+3.3VDC
DOUBLE
TRAY3
PLUG
CONTROL SIZE SWITCH1
LOGIC
J210 P210 J21 SIGNEL
A6 A8 19
YEL
YEL YEL
2
+3.3VDC
TRAY3
SIZE SWITCH2
SIGNEL
A5 A9 18
YEL
YEL YEL
2
+3.3VDC
TRAY3
SIZE SWITCH3
SIGNEL
A4 17
A10
YEL YEL
YEL
2
+3.3VDC
TRAY3
NO PAPAR
SENSED
SIGNEL
B12 B1
12
YEL YEL
YEL
2 Imaginary Line
+3.3VDC
B4 10
B10
YEL YEL YEL
Paper Size
SW1 SW2 SW3 Display
LEGAL14"
ON ON ON
LEGAL13"
ON ON OFF
EXECUTIVE
ON OFF ON
B5
ON OFF OFF
A4
OFF ON ON
LETTER
OFF OFF ON
A5
OFF ON ON
No Cassette
OFF OFF OFF
2.7.4
2.6.4
2.6.4
2.6.4
2.6.4
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