Epson 890N Service Manual - Page 63

Fatal Error - fx 890 print head

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EPSON FX-890/2190 3.2.12 Fatal Error Table 3-14. Troubleshooting for Fatal Error Action and Question Yes No Parts below can be the source of this error (Chapter 4 Disassembly and Assembly) • C524MAIN Board (p.74) • C524PSB/PSE/PSH Board (p.76) • Printhead (p.77) • CR Motor (p.81) • PF Motor (p.83) • HP (Home Position) Detector (p.78) Abnormal +42V Drive Voltage (PD Error : value = 37H) The printer detects abnormal voltage level with +42V line. Check to see if the components to which +42V is supplied; is defective (short-circuit). • Printhead • CR Motor • PF Motor Replace the defective component. Replace the power supply circuit board (C524PSB/ PSE/PSH). Abnormal CR operation (CR Error : value = 30H) CR Home position seek operation is failed, or CR Home position is detected during printing. Check to see if one of the following component is defective. Replace the defective component. Replace C524MAIN Board. • CR Motor • Timing belt tension • CR HP Sensor CG Access Error (CG Error : value = 33H) Failed to access CG, or error in EEPROM data verification. Check to see if an error solved by replacing the C524MAIN board. Replace C524MAIN Board. Go to 3.2.11 Electrical Noise (p.62) Revision B Table 3-14. Troubleshooting for Fatal Error (continued) Action and Question Abnormal Printhead Temperature (Head Open Error : value = 3AH) The printer actually checks the connection between the printhead and C524MAIN Board, and an error is recognized as an abnormal printhead temperature if the connection is wrong. Check to see if the connection between the printhead and C524MAIN Board is correct. • FFC is not properly connected (or disconnected). • FFC is damaged. Yes Re-connect FFC or replace the defective component. No Replace the printhead. Abnormal Printhead TrVce Voltage (VDD Error : value = 36H) The level of drive voltage supplied to the printhead is abnormal. Replace the power supply circuit board (C524PSB/ PSE/PSH). Replace the printhead. Abnormal voltage with the simple ecodrive circuit (ECO Error : value = 3CH) The printer check the operation of simple ecodrive circuit when it is turned on, and recognizes this error condition if the voltage level is abnormal. Replace C524MAIN Board. Replace the power supply circuit board (C524PSB/ PSE/PSH). Troubleshooting Troubleshooting Based on Symptoms 63

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EPSON FX-890/2190
Revision B
Troubleshooting
Troubleshooting Based on Symptoms
63
3.2.12
Fatal Error
Table 3-14.
Troubleshooting for Fatal Error
Action and Question
Yes
No
Parts below can be the source of this error (
Chapter 4 Disassembly and Assembly
)
•
C524MAIN Board
(p.74)
•
C524PSB/PSE/PSH Board
(p.76)
•
Printhead
(p.77)
•
CR Motor
(p.81)
•
PF Motor
(p.83)
•
HP (Home Position) Detector
(p.78)
Abnormal +42V Drive Voltage
(PD Error : value = 37H)
The printer detects abnormal voltage level with +42V line.
Check to see if the components to which +42V is supplied; is
defective (short-circuit).
•
Printhead
•
CR Motor
•
PF Motor
Replace the
defective
component.
Replace the
power supply
circuit board
(C524PSB/
PSE/PSH).
Abnormal CR operation
(CR Error : value = 30H)
CR Home position seek operation is failed, or CR Home
position is detected during printing.
Check to see if one of the following component is defective.
•
CR Motor
•
Timing belt tension
•
CR HP Sensor
Replace the
defective
component.
Replace
C524MAIN
Board.
CG Access Error
(CG Error : value = 33H)
Failed to access CG, or error in EEPROM data verification.
Check to see if an error solved by replacing the C524MAIN
board.
Replace
C524MAIN
Board.
Go to
3.2.11
Electrical
Noise
(p.62)
Abnormal Printhead Temperature
(Head Open Error : value = 3AH)
The printer actually checks the connection between the
printhead and C524MAIN Board, and an error is recognized
as an abnormal printhead temperature if the connection is
wrong.
Check to see if the connection between the printhead and
C524MAIN Board is correct.
•
FFC is not properly connected (or disconnected).
•
FFC is damaged.
Re-connect
FFC or replace
the defective
component.
Replace the
printhead.
Abnormal Printhead TrVce Voltage
(VDD Error : value = 36H)
The level of drive voltage supplied to the printhead is
abnormal.
Replace the
power supply
circuit board
(C524PSB/
PSE/PSH).
Replace the
printhead.
Abnormal voltage with the simple ecodrive circuit
(ECO Error : value = 3CH)
The printer check the operation of simple ecodrive circuit
when it is turned on, and recognizes this error condition if the
voltage level is abnormal.
Replace
C524MAIN
Board.
Replace the
power supply
circuit board
(C524PSB/
PSE/PSH).
Table 3-14.
Troubleshooting for Fatal Error (continued)
Action and Question
Yes
No