Epson Stylus Pro 7400 Service Manual page 199

EPSON Stylus Pro 7400/7800/9400/9800
SERVICE CALL 0001003F
Description
The Pressure Motor reached its end of life.
Possible Causes
The cumulative number of steps of the Pressure Motor reached the prescribed
upper limit.
Remedy
Replace the PUMP ASSY., SUPPLY
Pressure Pump Unit using the Adjustment Program.
SERVICE CALL 00010040
Description
Printing position error
Possible Causes
Exact detection of printing positions is impossible due to dirt or scratches on
the Timing Fence or the CR Encoder.
Malfunction of the program
Remedy
1. Replace the SCALE, CR (p.251).
2. Replace the CR Encoder Sensor (p.246).
3. Execute the CR Encoder Sensor Adjustment
4. Installing Firmware (p.371)
Troubleshooting
(p.291)., and reset the life counter of the
(p.308).
Troubleshooting based on Panel Messages
SERVICE CALL 00020000
Description
NVRAM error
Explanation
The printer causes this error and stops operation when it detects that parameters
stored on the NVRAM are corrupted.
Possible Causes
NVRAM erasing or writing error (every 2-byte is checked)
Remedy
Replace the BOARD ASSY., MAIN (p.232).
SERVICE CALL 00020002
Description
SDRAM error
Explanation
The printer causes this error and stops operation when it detects a bit error by the
SDRAM memory check performed during the power-on sequence.
Possible Causes
SDRAM reading/writing error
SDRAM failure
The address/data bus on the Main Board is broken or its contact is poor.
Remedy
Replace the BOARD ASSY., MAIN (p.232).
Revision B
199