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Trouble-
shooting
SELF-DIAGNOSTIC
MODE
SM 7-13
B022/B027
7.2 SELF-DIAGNOSTIC MODE
7.2.1 SELF-DIAGNOSTIC MODE AT POWER ON
As soon as the main machine is powered on, the controller waits for the initial
settings of the copy engine to take effect and then starts an independent self-
diagnostic test program. The self-diagnostic test follows the path of the flow chart
shown below and checks the CPU, memory, HDD, and so on. An SC code is
displayed in the touch panel if the self-diagnostic program detects any malfunction
or abnormal condition.
Self-Diagnostic Test Flow
Power On
ASIC Check
Initialization
Memory Check for
Self-Diagnostic Test
SSCG Check
HDD Check
Memory Check
OPC Check
IEEE1284
I/F Check
CPU Check
Program ROM,
DIMM CRC Check
NVRAM Check
Illegal Interrupt
Check
Font ROM Check
RTC Check
IC Card
I/FCheck
Network Check
Engine I/F Check
System OS,
Application Check
Self-Diagnostic
Mode Selection
B027T516.WMF
Rev. 11/2002
Summary of Contents for B022
Page 1: ...B022 B027 SERVICE MANUAL 001197MIU RICOH GROUP COMPANIES...
Page 2: ......
Page 3: ...B022 B027 SERVICE MANUAL RICOH GROUP COMPANIES...
Page 4: ......
Page 5: ...B022 B027 SERVICE MANUAL 001197MIU...
Page 6: ......
Page 8: ......
Page 10: ......
Page 12: ......
Page 36: ......
Page 37: ...OVERALL MACHINE INFORMATION...
Page 38: ......
Page 59: ...DETAILED SECTION DESCRIPTIONS...
Page 60: ......
Page 131: ...INSTALLATION...
Page 132: ......
Page 190: ...SERVICE TABLES...
Page 191: ......
Page 270: ...PREVENTIVE MAINTENANCE...
Page 271: ......
Page 275: ......
Page 276: ...REPLACEMENT AND ADJUSTMENT...
Page 277: ......
Page 328: ...TROUBLESHOOTING...
Page 329: ......
Page 351: ......
Page 352: ...PAPER TRAY UNIT A860 B390...
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Page 375: ......
Page 376: ...LCT A862 B391...
Page 377: ......
Page 397: ......
Page 398: ...AUTO REVERSE DOCUMENT FEEDER B386...
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Page 429: ......
Page 430: ...INTERCHANGE UNIT B300 B416...
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Page 437: ......
Page 438: ...1 BIN TRAY UNIT A898 B413...
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Page 445: ......
Page 446: ...SHIFT TRAY UNIT B313 B459...
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Page 455: ......
Page 456: ...BY PASS A899 B415...
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Page 465: ......
Page 466: ...DUPLEX A896 B414...
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Page 479: ......
Page 480: ...BRIDGE UNIT A897 B417...
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Page 490: ...1 000 SHEET FINISHER B408...
Page 491: ......
Page 518: ...500 SHEET FINISHER G302 B442...
Page 519: ......
Page 541: ......
Page 542: ...FIRMWARE HISTORY...
Page 543: ......
Page 549: ......
Page 550: ...PRINTER SCANNER CONTROLLERS B453 B461...
Page 551: ......
Page 592: ...FAX UNIT B418...
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Page 734: ...TECHNICAL SERVICE BULLETINS...
Page 737: ......
Page 763: ...FIRMWARE HISTORY...