Epson STYLUS PRO 9400 - Page 198

EPSON Stylus Pro 7400/7800/9400/9800 Revision B
Troubleshooting Troubleshooting based on Panel Messages 198
SERVICE CALL 00010035

Description
Pump phase detection error
 Possible Causes
A position of the pump cannot be detected after the Pump Motor rotates the
prescribed number of times, or the Pump Phase Sensor is faulty. Or the fuse for the
motor driver power is blown (on the Main Board).
 Remedy
Check if the printer can recover from the error by turning it OFF and back ON. If
the error occurs again, replace the Pump Cap Assy. or replace the Main Board
Assy.
 Replace the PUMP CAP ASSY. (p.284).
 Replace the BOARD ASSY., MAIN (p.232).
SERVICE CALL 00010036

Description
Type-B board installation error
 Possible Causes
A Type-B board lower than level 2 is installed.
 Remedy
Remove the installed Type-B board.
SERVICE CALL 00010037

Description
Head thermistor error
 Possible Causes
 The head thermistor is faulty.
 The temperature of the thermistor is lower than minus 20 degrees C or higher
than 100 degrees C.
 The Head FFC is disconnected, or its contact is poor.
 Remedy
1. Check the connection status of the Head FFC and correct it if necessary.
2. Replace the PRINT HEAD (p.267).
SERVICE CALL 00010038

Description
Transistor thermistor error
 Possible Causes
 The transistor thermistor is faulty.
 The temperature of the thermistor is lower than minus 20 degrees C or higher
than 100 degrees C.
 Remedy
Replace the BOARD ASSY., MAIN (p.232).
SERVICE CALL 0001003E

Description
Pressure Sensor failure
 Possible Causes
 The Pressure Sensor is ON when an ink pressurizing operation is not
performed. (disconnection of the Pressure Sensor connector, malfunction of
the Pressure Sensor, or Main Board failure)
 The inside pressure cannot be reduced to the same level as atmospheric
pressure. (valve failure, Regulator Solenoid failure, Pressure Tube failure, or
Main Board failure)
 Remedy
1. Reconnect the Pressure Sensor connector securely.
2. Connect the Pressure Tube.
3. Replace the PUMP ASSY., SUPPLY (p.291).
4. Replace the BOARD ASSY., MAIN (p.232).