Brother International HL-3400CN Service Manual - Page 278
Brother International HL-3400CN - Color Laser Printer Manual
UPC - 012502526223
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CHAPTER 8 TROUBLESHOOTING Error Code Name of Part D1 Developer Clutch (DCLY) Confirm the connection of Connector. 4 Is the connection proper between ECN14 of 1OD2 and Clutch (DCLY) ? NO Is the harness of Clutch (DCLY) broken ? YES Connect the harness. Connect the connector properly. Is D1 Error cleared ? NO YES Complete V Check the voltage at DCLY ON-N. 4
CHAPTER
8
TROUBLESHOOTING
Error
Code
D1
Name
of
Part
Developer
Clutch
(DCLY)
Confirm
the
connection
of
Connector.
4
Is
the
connection
proper
between
ECN14
of
1OD2
and
Clutch
(DCLY)
?
Is
the
harness
of
Clutch
(DCLY)
broken
?
YES
NO
Connect
the
harness.
Connect
the
connector
properly.
Is
D1
Error
cleared
?
V
Check
the
voltage
at
DCLY
ON
-N.
4
<Does
the
voltage
drop
(-L+
24
v)
between
ECN14-3
and
ECN2-6?
II
F
NO
<Does
the
voltage
jump
(2
—
)
between
ECN1-3
and
ECN2-8
?
NO
ill
V
NO
YES
YES
Replace
the
clutch
(DCLY)
with
a
new
clutch.
YES
O.Replace
IOD2
PCB
with
a
new
one.
Replace
current
MCTL
PCB
with
a
new
one.
V
Is
D1
Error
cleared
?
+
YES
Complete
4
Is
D1
Error
cleared
?
NO
Re
-check
NO
MCTL
12CN
3
8
DCL(Y)0N-P
+24V-1
PGND
YES
Complete
IOD2
SGND
ECN1
ECN14
3
ECN2
3
6
8
1
Complete
17
Developer
Clutch(Y)
+24V-1
DCL(Y)ON-N
is
8-20