EPSON FX-890/2190
Revision B
Troubleshooting
Troubleshooting Based on Symptoms
62
3.2.10 Faulty print
3.2.11 Electrical Noise
Table 3-12. Faulty print
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
• Ribbon Mask
•
• Printhead FFC
•
1
Ribbon Mask
Remove the Ribbon Mask from the Printhead, and
make sure that the Ribbon Mask is free from
deformation or damage.
♦
Is the problem solved?
Problem
solved
Go to Step 2
2
Defective Printhead
Replace the Printhead with a new one.
♦
Is the problem solved?
Replace the
Printhead.
Go to Step 3
3
Adjust the platen gap.
♦
Is the problem solved?
Problem
solved
Go to Step 4
4
Printhead FFC
Replace the Printhead FFC with a new one.
♦
Is the problem solved?
Replace the
Printhead
FFC.
Go to Step 5
5
Main Board
Replace the Main Board with a new one.
♦
Is the problem solved?
Replace the
Main Board.
Table 3-13. Troubleshooting for Electrical Noise
Step
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
•
•
1
External noise
1. Check to see if within 3 m from the printer there is
another electrical apparatus, such as a generator,
radio transmitter or an apparatus incorporating a
motor.
2. Turn off the power to the electrical apparatus in
question or move the printer to a position at least 6
m distant from the apparatus.
♦
Does the problem with electrical noise still occur?
Go to Step 2
Problem
solved
2
AC grounding
Check the AC power connection.
♦
Is the AC power cable connected and grounded
properly?
Go to Step 3
Ask the
customer for
repair of the
AC power
connection.
3
Harness of Power Switch
1.
2. Replace the HOUSING ASSY.,LOWER with a new
one.
♦
Is the cable grounded properly?
Go to Step 4
Install the
grounding
screw
properly.
4
Grounding of circuit boards
1. Remove the Shield Cover.
2. Make sure that the screws for the Power Supply
Board is tightened securely.
♦
Is grounding ensured?
Go to Step 5
Ensure
grounding.
5
Power Supply Board
Replace the Power Supply Board with a new one.
♦
Is the problem solved?
Replace the
Power Supply
Board.
Go to Step 7
6
Main Board
Replace the Main Board with a new one.
♦
Is the problem solved?
Replace the
Main Board.
Problem
solved
Содержание 890N - FX B/W Dot-matrix Printer
Страница 1: ...EPSONFX 890 2190 Serial Impact Dot Matrix Printer SEDM02003 SERVICE MANUAL ...
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTIONS ...
Страница 43: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 52: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 65: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 93: ...C H A P T E R 5 ADJUSTMENT ...
Страница 98: ...C H A P T E R 6 MAINTENANCE ...
Страница 104: ...C H A P T E R 7 APPENDIX ...
Страница 109: ......
Страница 110: ......
Страница 111: ......
Страница 112: ......
Страница 113: ......
Страница 116: ...FOR FX 890 NO 2 R ev 01 C524 E LE C 01 A A B J C B C H E F I K L M G D D 300 450 372 200 400 350 ...
Страница 118: ...FOR FX 890 NO 4 R ev 01 C524_PACK_01 03 01 06 04 04 xx 07 02 02 02 05 05 ...
Страница 120: ...FOR FX 2190 NO 2 Rev 01 C526_ELEC_01 A A B G D E J F F K L B I F H 200 400 373 330 372 450 ...