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FX Series
Epson FX Series Product Support
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J
EPSON
PRINTER
2.12
ON-LINE
/
OFF-LINE
MODE
MALFUNCTION
Disconnect
power.
Remove
top
cover
(Procedure
4.1).
Reconnect
control
panel
(Procedure
4.2).
Using
TABLE
2.4
for
the
values
and
the
test
points,
check
the
resistance
of
the
switches
on
the
control
panel.
Press
and
release
the
switches
to
insure
that
the
readinqs
change.
Switch
readings
are
all
correct.
YES
NO
Replace
control
panel
(Procedure
4.2).
Problem
is
solved.
YES
NO
Return
to
the
initial
checks
and
continue.
2.
Replace
main
board
(Procedure
4.6)
Problem
is
solved.
YES
NO
i
Replace
control
panel
(Procedure
4.2).
3.
Return
to
the
initial
checks
and
continue.
2-13
REPAIR
ANALYSIS
PROCEDURES
2.13
INCORRECT
OPERATION
WITH
HOST
COMPUTER
1.
Remove
top
cover
(Procedure
4.1).
Reconnect
control
panel
(Procedure
4.2).
Insure
that
all
the
switch
settings
on
the
main
board
are
correct.
Adjust
if
necessary.
Problem
issolv^.
YES
NO
Replace
the
interface
cable.
Problem
is
solved.
YES
NO
Replace
the
main
board
(Procedure
4.6).
Problem
is
solved.
YES
NO
Have
the
customer
check
the
host
computer
print
commands.
2.
Return
to
the
initial
checks
and
continue.
52
54
Table of Contents
Table of Contents
3
Default Chapter
4
How to Use this Manual
4
Introduction
4
1 Principles of Operation
5
Principles of Operation
10
2 Wiring Data
19
Table of Contents
34
Default Chapter
36
Introduction
36
1 Service Call Procedures
37
Getting Started
37
Initial Checks
37
Power2-2
42
Alarm Sounds at Power on
45
Paper out Not Sensed
46
Abnormal Carriage Operation
47
Incorrect Paper out Tones
48
Paper Feed Motor
49
Incorrect Control Panel Status 2
49
Incorrect Printing
50
Dots or Characters Missing
51
Ribbon Not Advancing
52
On-Line/Off-Line Mode Malfunction
53
Incorrect Operation with Host Computer
53
3 Parts Lists
69
FX-80/80 + /85 Covers and Electrical Components
81
Printer Mechanism Components
83
Printer Mechanism Components (Part 2)
85
Repairs/Adjustments
100
Upper Case Assembly
100
Control Panel
100
Power Transformer
100
Fuse and Filter Circuit Board
101
Daughter Board
101
Control Circuit Board (Main Board)
101
Printer Mechanism
101
Print Head Unit
102
Print Head Adjustment
103
Home Position (HP) Sensor Assembly
103
HP Sensor Adjustment
103
Timing Belt Motor Assembly
104
Timing Belt Motor Adjustment
105
Timing Belt
105
Timing Belt Tension Adjustment
105
Ptssensor Board Assembly
106
Ptssensor Adjustment
106
Paper Feed Motor Assembly
107
Paper Feed Motor Adjustment
107
PE Board Assembly
108
Integrated Circuits
108
Carriage (Fxseries)
109
Carriage (MX Series)
110
5 Final Actions
112
Introduction
112
Lubrication
112
Printer Cleaning
121
6 General
122
Specifications
122
Special Tools and Supplies
123
Dipswitch Settings
123
IC Locations
135
Interface Boards
140
Dipswitch Settings for Interface Boards
140
Install Checklist
150
Revisions to the Manual
150
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Epson FX Series Specifications
General
Connectivity
Parallel
Paper Handling
Friction feed, Tractor feed
Emulation
Epson ESC/P
Noise Level
55 dB(A)
Print Method
Impact dot matrix
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