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SC Tables
SM Appendix
3-39
D023/D025
Appe
ndix
Service Call
Conditio
n
s
No.
Type
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Zero cross error
The zero cross signal is detected three times even though the
heater relay is off when turning on the main power.
The zero cross signal is not detected for 2 seconds even though
the heater relay is on after turning on the main power or closing the
front door.
The detection error occurs twice or more in the 11 zero cross signal
detections. This error is defined when the detected zero cross
signal is less than 45.
Defective fusing lamp relay
Defective fusing lamp relay circuit
Unstable power supply
547 D
1. Check the power supply source.
2. Replace
the
PSU
No.
Type
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Pressure roller thermistor error
The temperature measured by the pressure roller thermistor does not
reach 0 °C for 6 seconds.
Loose connection of pressure roller thermistor
Defective
thermopile
Defective pressure roller thermistor
Related SC code: SC 541
551 A
1. Check that the pressure roller thermistor is firmly connected.
2. Replace
the
thermopile.
3. Replace the pressure roller thermistor.
Summary of Contents for D023
Page 1: ...D023 D025 SERVICE MANUAL Book 1 of 2 003987MIU MAINFRAME...
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Page 3: ...D023 D025 SERVICE MANUAL B00K 1 of 2 MAINFRAME...
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Page 5: ...D023 D025 SERVICE MANUAL BOOK 1 of 2 MAINFRAME 003987MIU...
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Page 36: ...D023 D025 1 2 SM 1 2 OVERVIEW 1 2 1 COMPONENT LAYOUT...
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Page 112: ...D023 D025 2 64 SM...
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Page 246: ...Paper Transfer D023 D025 4 70 SM 7 Pivot bracket A x 1 8 Paper transfer unit B x 1 2 springs...
Page 291: ...Fusing SM 4 115 D023 D025 Replacement Adjustment 8 Thermopile F x 2 x 1...
Page 314: ...Electrical Components D023 D025 4 138 SM I ITB Power Supply Board...
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Page 383: ...TROUBLESHOOTING SECTION 6 TROUBLESHOOTING REVISION HISTORY Page Date Added Updated New None...
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Page 393: ...D023 D025 SERVICE MANUAL APPENDICES...
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Page 560: ...Troubleshooting Guide D023 D025 5 2 SM Appendix...
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Page 581: ...Jam Detection SM Appendix 6 11 D023 D025 Appendix Jam Detection Sensor Locations...
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Page 1096: ...Covers SM 3 B793 B793 Booklet Finisher 3 Remove the upper left cover C...
Page 1110: ...Folder SM 17 B793 B793 Booklet Finisher 6 Remove a connector 7 7 Remove 2 screws 8...
Page 1111: ...Folder B793 18 SM 8 Remove the staple tray 9 9 Remove the guide 10 2 screws...
Page 1154: ...PAPER FEED UNIT PB3040 D351 D351 PAPER FEED UNIT PB3040 Page Date Added Updated New None...
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Page 1176: ...LCIT PB3050 D352 D352 LCIT PB3050 Page Date Added Updated New None...
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Page 1202: ...1200 SHEET LCIT RT3000 D353 D353 LCIT RT3000 Page Date Added Updated New None...
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Page 1254: ...Overview D372 20 SM No What Happens sure that the stapler is at its home position...
Page 1298: ...BRIDGE UNIT BU3030 D386 D386 BRIDGE UNIT BU3030 Page Date Added Updated New None...
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Page 1313: ...PAPER FEED UNIT PB3080 D387 D387 PAPER FEED UNIT PB3080 Page Date Added Updated New None...
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Page 1356: ...G3 Interface Unit D393 SM 15 D393 Fax Option Type C5000 D393...
Page 1514: ...1 Bin Tray BN3070 D414 D414 1 BIN TRAY BN3070 Page Date Added Updated New None...
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