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EPSON Stylus Pro 7400/7800/9400/9800
Revision B
Troubleshooting
Troubleshooting based on Panel Messages
190
SERVICE CALL 00010001
Description
The PF Motor is out-of-step.
Explanation
The printer causes this error and stops operation if it cannot detect the specified-
length encoder pulse signals within a fixed time period or when abnormally long
or short pulse signals are detected while the PF Motor is rotating.
Check Point
1. Make sure that the PF Encoder and the PF loop scale are free of dust or
foreign materials.
2. Perform the Encoder check by the
“1.4.6.1 Self Testing Menu (SELF
.
3. Make sure that the PF Timing Belt is normal and its tension is appropriate.
4. Make sure that the Grid Roller rotates smoothly without any abnormal load.
5. Make sure that the PF Motor is not shorted out.
If it does, replace the C594 Main Board together with the PF Motor.
6. Make sure that the harnesses are connected correctly and not broken.
Remedy
1. Clean dirt or paper dust on the Loop Scale and check if it is damaged.
2.
3.
4.
SERVICE CALL 00010002
Description
Overcurrent occurred on the PF Motor.
Explanation
The printer causes this error and stops operation if an abnormal electric current
beyond the prescribed range is detected at the PF Motor drive circuit on the C594
Main Board while the PF Motor is rotating or when a current beyond the
prescribed range is required to be supplied to the motor.
Check Point
1. Make sure that the PF Loop Scale is free of dust or foreign materials.
2. Make sure that the PF Motor is not shorted out.
If it does, replace the C594 Main Board together with the PF Motor.
3. Visually check if there is a point where likely to cause a short of the PF Motor
harness with the frame.
Remedy
1. Clean dirt or paper dust on the Loop Scale and check if it is damaged.
2.
3.
Summary of Contents for Stylus Pro 7400
Page 1: ...EPSONStylusPro7400 7800 9400 9800 Large Format Color Inkjet Printer SERVICE MANUAL SEIJ05002 ...
Page 10: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 147: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 170: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 207: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 292: ...C H A P T E R 5 ADJUSTMENT ...
Page 373: ...C H A P T E R 6 MAINTENANCE ...
Page 380: ...C H A P T E R 7 APPENDIX ...
Page 385: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 1 of 4 Revison G ...
Page 386: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 2 of 4 Revison F ...
Page 387: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 3 of 4 Revison F ...
Page 388: ...Model PX 7500 7500S 9500 9500S Board C594 Main Sheet 4 of 4 Revison E ...
Page 389: ...Model PX 7500 7500S 9500 9500S Board C594 SUB Sheet 1 Revison C ...
Page 390: ...Model PX 7500 7500S 9500 9500S Board C594 SUB B Sheet 1 Revison E ...
Page 391: ...Model PX 7500 7500S 9500 9500S Board C594 SUB C Sheet 1 Revison D ...
Page 392: ...Model PX 7500 7500S 9500 9500S Board C594 PNL Sheet 1 Revison D ...
Page 396: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 03 R ev 01 C594 E LE C 011 202 201 200 ...
Page 397: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 04 R ev 01 C594 E LE C 021 203 204 ...
Page 398: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 05 R ev 01 C594 POWE 011 300 301 302 ...
Page 403: ...PX 7500 7500S E PS ON S TYLUS PR O 7400 7800 No 10 R ev 01 C594 ME CH 051 700 701 X15 700 ...
Page 410: ...R ev 01 C595 E LE C 011 200 201 202 PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 03 ...
Page 411: ...PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 04 R ev 01 C595 E LE C 021 204 203 ...
Page 412: ...PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 05 R ev 01 C595 POWE 011 300 302 301 ...
Page 417: ...PX 9500 9500S E PS ON S TYLUS PR O 9400 9800 No 10 R ev 01 C594 ME CH 051 701 X15 700 700 ...