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Fig.
2-9. Pin Assignment
of the Connector
Connection
Connector Pin No.
Paper feeding motor
Phase B
1
Paper feeding motor
Phase C
2
Paper feeding motor
Common lead
3
Paper feeding motor
Common lead
4
Paper feeding motor
Phase A
5
Paper feeding motor
Phase D
6
Carriage motor
Phase B
7
Carriage motor
Phase C
8
Carriage motor
Common lead
9
Carriage motor
Common lead
10
Carriage motor
Phase A
11
Carriage motor
Phase D
12
13•
14•
Reset detector
15
Reset detector
16
10
9
12
11
14
13
16
15
2
4
6
8
3
5
7
DD
DD
DD
DD
D D
DO
•o
DO
Fig.
2-8. Pin Assignment
of the FPC
Pin Assignment
Head coil
#
1 (Black)
F 1
Head coil
#
2 (Cyan)
F 2
Head coil Common lead
F 3 ..-----·---~
Head coil Common lead
F 4 ----~
Heed coil # 3 (Magenta)
F 5 .---___r151fllll1}6"\--__.
Head coil #4 (Yellow)
F6
Ft
F2
F3
F4
F5
F6
5) Repair Method
Follow the instructions in this column for remedying the
trouble.
If the symptom or status prior to repair persist
after repair is
done,
troubleshoot the another item in the
"CAUSE" column then perform the required repair.
NOTE: To simplify the checking process during trouble-
shooting and repair, refer to Figs. 2-8 and 2-9
which respectively show pin assignment diagrams
of the FPC and the connector.
-
CE-140P
-16-
4) Check Point and Method
To isolate the cause of the trouble, follow the instructions
in this column, which list the origin of the trouble as well
as the method for checking it.
3) Cause
Check the origin of the trouble on the basis of its symptom
and
status.
Refer also to the repair level positioned next to
each
cause.
2) Status
Check the status of the trouble with the contents of this
column.
1) Symptom
•
Defective head unit operation
17 page
•
Defective paper feeding
17 page
•
No printing is performed
17 page
•
Head unit does not stop at home position
18 page
•
A specific color is not printed
18 page
•
Missing dots
18 page
•
Imperfectly formed characters
18 page
•
Running together of ink colors
19 page
•
Ink stains on paper
19 page
When a problem occurs, carefully check its symptoms and
status, isolate its cause by checking the check-points list-
ed in the tables of subsection
2.1.3, "Guide to Trouble-
shooting," then perform the necessary remedial
measures.
For efficient troubleshooting,
the tables of the "Guide to
Troubleshooting"
are organized into the following
categor-
ies to allow quick reference.
2.1.2 Repair Procedures
Descriptions of the three repairs levels are as
follows:
LEVEL A:
Requires general knowledge of the operating principles
and structure of the printer as well as some servicing skill.
At LEVEL
A,
repair experience or advanced skill is unne-
cessary.
LEVEL
B:
Requires a good knowledge of the operating principles and
structure of the printer as well as the ability to disassem-
ble and assemble it. At LEVEL B, repair experience is es-
sential.
LEVEL C:
Requires expert knowledge of the operating principles and
structure of the printer as
well.
as the ability to disassem-
ble and assemble it. At LEVEL
C,
long experience and ad-
vanced skill in repair procedures is essential.
2.1.1
Repair Levels
The repair procedures are categorized into three levels
(A.B.C), as described in the following subsection.
Service
personnel are requested to work at the repair levels
corre-
sponding to his/her own level of technical
expertise.
2.1 REPAIR
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