Epson Aculaser C9200N, Service Manual

Page: 126 / 441

EPSON AcuLaser C9200N Revision D
Troubleshooting Service Call Error 126
Confidential
E640: COLOR SHIFT TEST PATTERN FAILURE E641: COLOR SHIFT ADJUST FAILURE
Relevant Electrical Parts
†
Transfer Belt Unit
†
IDC Sensor
†
Photoconductor Unit
†
PH Unit
Step Action
Connection Diagram
Control Signal
Location
(electrical parts)
1 Check if Transfer Belt has damages
and correct as necessary. --- ---
2 Check that the IDC Sensor is properly
installed and correct as necessary. --- ---
3 Check if the IDC sensor is dirty and
correct as necessary. --- ---
4 Check the IDC Sensor connector for
proper connection and correct as
necessary. --- ---
5 Check the PWB-M connector for
proper connection and correct as
necessary. --- ---
6 Change the cable that connects IDC
Sensor and PWB-M.
7 Change IDC Sensor. (p.210)
8 Change Photoconductor Unit. (p.162)
9 Change PH Unit. (p.175) --- ---
Relevant Electrical Parts
†
PH Unit (displacement)
†
Transfer Belt Unit
Step Action
Connection Diagram
Control Signal
Location
(electrical parts)
1 Execute the correction of skew.
(p.315)
--- ---
2 Check if Transfer Belt has damages
and correct as necessary. --- ---