Epson FX-870/1170 User Manual Page 60
- Page / 181
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
Troubleshooting
Table 3-8. Symptoms and Flowchart References (Continued)
Flowchart
Symptom
Possible Problems
or Solution
When I try to load paper, the
l There is a problem with one of the PE sensors.
Use Table 3-2
printer feeds it back out.
l The main board is not reading sensor output correctly.
to test front and
rear PE sensor.
The printer continues printing
l There is a problem with one of the PE sensors.
beyond the paper end onto
l The CO94 MAIN board is not-reading sensor output
the platen.
correctly.
After I micro adjust top
l Page size may be set incorrectly in printer.
See Chart 7.
margin, the top margin of
l Application software may be set incorrectly.
subsequent pages is wrong
l CO94 MAIN board may have a problem.
or drifts down the page.
The carriage slams into
l There is a problem with the HP sensor.
Use Table 3-2 to
the right side of the
l The CO94 MAIN board is not reading the sensor
test sensor.
printer, or the printer doesn’t
correctly. If problem is with
find home after power on.
l (For narrow carriage printer) the main board E2PROM
the E2PROM, call
may have the wrong
carriige
width. dealer BBS at
(800) 234-i 445
for Version 4.0 of
Confidence Test
to reprogram.
The FX-1170 will print only
l The E2PROM on the CO94 MAIN board contains the
Call dealer BBS
BO columns.
wrong carriage width. at (800) 234-1445
for Version 4.0 of
Confidence Test
to reprogram.
The printer double-spaces
l Auto LF is set to ON in default setting mode. See Chart 8.
lines of text.
l Software is set up incorrectly.
l (If parallel) computer is constantly holding pin 14 LOW.
Serial Communications Errors
Some common serial data transmission problems can be identified by their symptoms. The
table below lists these problems and their corresponding solutions.
Problem
Garbled print
Table 3-9. Identifying Serial Communications Errors
Possible Cause
l Baud rate mismatch
l Parity mismatch
Solution
Verify DIP switch settings on the interface card. Type
a MODE command at the MS-DOS prompt to match
these settings. For instance, if the serial interface
card’s switches are in the factory setting, type:
MODE=COMn:9600,N,8,1
,P
(“n”
is the number of the COM port you are using.)
Epson FX-87011170 3-7
- FX-870/1170 1
- FCC Compliance Statement 2
- Copyright Notice 3
- Trademarks 3
- Precautions 4
- How to Use this Manual 5
- EptmnFX-870/1170 6
- Numbers and Addresses 7
- Contents 8
- Removing the Panel Unit 9
- Printer Features 10
- List of Figures 11
- List of Tables 11
- 80-column model 14
- 136-column model 14
- Hardware Specifications 15
- FX-8700170 20
- 0.12” (3.0 mm) or more 22
- EpsonFX-870/1170 22
- Epson FX-8700170 24
- Interfaces 25
- Control Panel 29
- Default Settings 32
- Position 1 (3rd step) 37
- Printer Initialization 38
- Table 1-21. Buzzer Functions 39
- Main Components 40
- ,,DAld-lfil-l 41
- Epson FX-87011170 42
- Housing Assembly 44
- Chapter 2 48
- Site Requirements 49
- The Correct Power On Sequence 49
- Parallel Cables 50
- Serial Cables 50
- Serial Cable 51
- Tips to Increase Printer Life 52
- Troubleshooting 53
- Troubleshooting 3 54
- Table 3-2. Sensor Test Points 55
- Error Codes 58
- Problem Isolation 59
- Serial Communications Errors 60
- Possible Cause 61
- 3-10 Epson 63
- Self-Test 66
- Chart 6. Data 68
- Host is Printed Incorrectly 68
- FX-870/i 70
- Connector Locations 71
- Sensor Locations 72
- Figure 3-5. Platen Gap Sensor 73
- Disassembly and Assembly 78
- Disassembly and Assembly 4 80
- Service Checks After Repair 81
- Screw Specifications 82
- Removing the Printhead 86
- Removing the 87
- Insertion 93
- Printer Mechanism 97
- Arranging the Cables 100
- Disassembly 103
- Assembly 103
- Epson FX-870/1170 103
- Adjustments, Maintenance, and 105
- Lubrication 105
- Platen Gap Adjustment 106
- Preventive Maintenance 110
- Table 5-2. Lubrication Points 111
- Principles of Operation 113
- Carriage Mechanism 118
- Paper Handling Mechanisms 120
- Ribbon Advance Mechanism 133
- Power Supply Operation 134
- Pfinciples of Operation 135
- Secondary 136
- Control Circuit Operation 137
- E05A66YA (IC4) 139
- FX-87W1170 139
- Sensor Circuits 141
- Carriage Motor Drive Circuit 142
- Printhead Drive Circuit 144
- Parallel Interface Circuit 144
- PROM Control Circuit 145
- CH1=50V TIME=2ps 146
- Reference Materials 153
- Reference Materials 7 154
- Circuit Diagrams 158
- Circuit Diagram 159
- C076 PSB Power Supply Board 160
- CO76 PSB Power Supply Board 161
- Figure 7-6 162
- Figure 7-7 163
- Outline Drawings 166
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