EPSON Stylus Pro 4400/4450/4800/4880/4880C
Revision C
Troubleshooting
Troubleshooting Based on Panel Messages
182
SERVICE REQ. 0001000A
Error meaning:
CR home position sensor error
Explanation
During initial operation at power on or during printing operation, there may
be a case where the home position can not be detected at the home
position detection timing or within a specified period of time. In such a
case, this message is displayed and the printer stops operating.
Points to be checked
1.
Check if the CR_HP Sensor is free from adhesion of any foreign
matters.
2.
Execute CR_HP Sensor checking by the
in "Maintenance Mode 2".
Remedy
1.
Check for dirt, paper dust or damage to the CR_HP Sensor.
2.
Replace the
3.
SERVICE REQ. 0001000C
Error meaning:
PG phase sensor error
Explanation
During initial operation at power on or during platen gap fluctuation
(change) operation after paper setting, there may be a case where the PG
home position can not be detected. In such a case, this message is
displayed and the printer stops operating.
Cause of trouble
Disconnected connector for the PG Phase Sensor.
Disconnected connector for the PG Motor.
Broken wire for the PG Motor.
Defective PG Phase Sensor.
Defective PG Motor.
Damage to wheel linkage of PG drive gears
Power supply fuse for PG/PO Motor driver is broken on the MAIN
Board.
Points to be checked
1.
Check that the PG Phase Sensor and the PG drive gears are free from
obstruction by adhesion of foreign matters or soiling.
2.
Measure the resistance value of the PG Motor. (7.0 ± 10% [
Ω
])
If the PG Motor is found in short mode, replace the BOARD ASSY.,
MAIN at the same time.
3.
All the harness must be connected properly and free from short circuit
or broken wire.
4.
There should be no damage to wheel linkage such as between PG
Motor pinion gear and PG drive gears.
Remedy
1.
Connect PG Phase Sensor or PG Motor connector correctly.
2.
Replace the
3.
Replace the
4.
C A U T I O N
If the above steps do not result in recovery, this message
will be displayed due to malfunctioning CR system (CR
Encoder Sensor/CR Motor, etc.), so check by widening the
range of investigation.
Summary of Contents for Stylus Pro 4800 Portrait Edition
Page 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 113: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 156: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 200: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 366: ...C H A P T E R 5 ADJUSTMENT ...
Page 448: ...C H A P T E R 6 MAINTENANCE ...
Page 457: ...C H A P T E R 7 APPENDIX ...