Service Call 501-582
SM
6-37
D255/D256/M281/M282
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SC No.
Type
Error Name/Error Condition/Major Cause/Solution
SC543-00
D
Fusing Thermistor (Center) High Temperature
The fusing thermistor (center) detects the temperature that
exceeds 245 degrees C.
The fusing thermistor (center) detects the temperature that
exceeds 195 degrees C in a heater-off state after the fusing
thermistor (center) detects the temperature of 155 degrees
C or less.
Connector pin defective
Triac defective
Fusing thermistor defective
IOB defective
Connector pin defective
If the I/F connector pins of the fuser unit and the main unit
are deformed owing to foreign materials, replace the
connectors or the units including the connectors.
Triac defective
Disconnect the power cord and check that the resistance
between terminals T1 and T2 of the triac TRA31 and triac
TRA41 on the PSU are several Mega-Ohms and not
shorted. If failed, replace the PSU.
Fusing thermistor defective
Replace the fusing unit.
IOB defective
Replace the IOB.
Summary of Contents for M281 Series
Page 1: ...D255 D256 M281 M282 SERVICE MANUAL ...
Page 16: ......
Page 20: ......
Page 21: ...PRODUCT INFORMATION REVISION HISTORY Page Date Added Updated New None ...
Page 22: ......
Page 28: ......
Page 189: ...PREVENTIVE MAINTENANCE REVISION HISTORY Page Date Added Updated New None ...
Page 190: ......
Page 194: ......
Page 278: ...Laser Unit MP 501 601 D255 D256 M281 M282 4 84 SM 6 Remove the laser unit A ...
Page 370: ......
Page 436: ......
Page 438: ......
Page 442: ...Self Diagnostic Mode D255 D256 M281 M282 6 4 SM ...
Page 563: ...DETAILED DESCRIPTIONS REVISION HISTORY Page Date Added Updated New None ...
Page 564: ......
Page 585: ...Fusing Unit SM 7 21 D255 D256 M281 M282 Detailed Descriptions ...
Page 587: ...Paper Exit Unit SM 7 23 D255 D256 M281 M282 Detailed Descriptions ...
Page 590: ...Paper Feed Unit D255 D256 M281 M282 7 26 SM ...
Page 593: ...ARDF MP 501 601 Only SM 7 29 D255 D256 M281 M282 Detailed Descriptions ...
Page 595: ...ARDF MP 501 601 Only SM 7 31 D255 D256 M281 M282 Detailed Descriptions ...
Page 599: ...D255 D256 M281 M282 SERVICE MANUAL APPENDICES ...
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Page 604: ......
Page 605: ...APPENDIX SPECIFICATIONS REVISION HISTORY Page Date Added Updated New None ...
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Page 633: ...PREVENTIVE MAINTENANCE TABLES REVISION HISTORY Page Date Added Updated New None ...
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Page 807: ...SOFTWARE CONFIGURATION REVISION HISTORY Page Date Added Updated New None ...
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