Brother International DCP1000 Service Manual - Page 133

Communications, related, Paper/document, feeding

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[ 3 ] Communications related Trouble (1) No tone is transmitted. • Main PCB • NCU PCB Check: [ 4 ] Paper/document feeding related Trouble (1) Neither "COPY: PRESS COPY" nor "FAX: NO. & START" message appears although documents are set. (2) Document not fed. (3) Document double feeding (4) Recording paper not fed. (5) Recording paper double feeding Check: • Sensors by using the maintenance-mode function code 32. (Refer to Chapter 5, Subsection 5.3.8.) • Document front sensor actuator and document rear sensor actuator • Main PCB • ADF and its related sections • ADF motor and its harness • Document feed roller and its related gears • Main PCB • ADF parts • ASF • Drum unit • Heat-fixing unit • Drive gear ASSY • Main PCB • Separation pad on the ASF 6-19

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[
3
]
Communications
related
Trouble
Check:
(1)
No
tone
is
transmitted.
•
Main
PCB
•
NCU
PCB
[
4
]
Paper/document
feeding
related
Trouble
Check:
(1)
Neither
"COPY:
PRESS
COPY"
nor
"FAX:
NO.
&
START"
message
appears
although
documents
are
set.
•
Sensors
by
using
the
maintenance
-mode
function
code
32.
(Refer
to
Chapter
5,
Subsection
5.3.8.)
•
Document
front
sensor
actuator
and
document
rear
sensor
actuator
•
Main
PCB
(2)
Document
not
fed.
•
ADF
and
its
related
sections
•
ADF
motor
and
its
harness
•
Document
feed
roller
and
its
related
gears
•
Main
PCB
(3)
Document
double
feeding
•
ADF
parts
(4)
Recording
paper
not
fed.
•
ASF
•
Drum
unit
•
Heat
-fixing
unit
•
Drive
gear
ASSY
•
Main
PCB
(5)
Recording
paper
double
feeding
•
Separation
pad
on
the
ASF
6-19