T
rouble
-
s
hooting
SERVICE CALL CONDITIONS
SM
4-5
B039/B040/B043
No.
Definition
Symptom
Possible Cause
Lower paper tray lift motor malfunction (optional two-tray paper tray unit)
504
B
The paper lift sensor fails to activate
twice continuously after the tray lift
motor has been on for 18 seconds.
•
Paper lift sensor defective
•
Tray lift motor defective
•
Too much load on the drive
mechanism
•
Poor tray lift motor connection
Paper tray motor lock (optional paper tray units)
506
B
A motor lock signal is not detected for
more than 1.5 s or the lock signal is not
detected for more than 1.0 s during
rotation.
•
Paper tray unit motor defective
•
Too much load on the drive
mechanism
Fusing thermostat/thermistor open
541
A
The fusing temperature detected by the
thermistor is below 10
°
C for 5 seconds
after the main power switch is turned
on.
•
Fusing thermostat defective or out of
position
•
Fusing thermistor defective or out of
position
•
Power supply board defective
Fusing temperature warm-up error
542
A
The fusing temperature does not reach
80
°
C within 30 seconds after the main
switch is turned on.
•
Fusing thermistor defective or out of
position
•
Fusing lamp open
•
Fusing thermostat open
•
Fusing thermofuse open
•
Power supply board defective
Fusing overheat error
543
A
A fusing temperature of over 230
°
C is
detected for 1 second by the fusing
thermistor.
•
Fusing thermistor defective
•
Power supply board defective
Fusing low temperature error
544
A
A fusing temperature of lower than
100
°
C is detected for 1 second by the
fusing thermistor during operation or
stand-by mode.
•
Fusing lamp open
•
Fusing thermistor defective
•
Power supply board defective
•
Fusing thermistor open
•
Fusing thermostat open
Unstable fusing temperature
546
A
The fusing temperature does not rise
3
°
C or more within 5 seconds after the
fusing lamp has been on over 8
seconds.
•
Thermistor defective
•
Power supply unit defective
Zero cross signal malfunction
547
B
Zero cross signals are not detected
within 5 seconds after the main power
switch is turned on, or are not detected
within 1 second after operation begins.
•
Power supply board defective
•
IOB defective
•
BiCU defective
Communication error between IOB and ADF
620
B
The IOB does not receive a response
from the ADF main board for 4 seconds
or more.
•
Poor connection between the IOB and
ADF main board (DF connector)
•
ADF main board defective
•
IOB defective
Summary of Contents for LD013
Page 1: ...001129MIU SERVICE MANUAL B039 B040 B043 B120 RICOH GROUP COMPANIES...
Page 2: ......
Page 3: ...SERVICE MANUAL B039 B040 B043 B120 RICOH GROUP COMPANIES...
Page 4: ......
Page 5: ...B039 B040 B043 B120 SERVICE MANUAL 001129MIU...
Page 6: ......
Page 8: ......
Page 10: ......
Page 26: ......
Page 30: ......
Page 31: ...INSTALLATION...
Page 32: ......
Page 61: ...PREVENTIVE MAINTENANCE...
Page 62: ......
Page 66: ......
Page 67: ...REPLACEMENT AND ADJUSTMENT...
Page 68: ......
Page 124: ......
Page 125: ...TROUBLESHOOTING...
Page 126: ......
Page 140: ...SERVICE TABLES...
Page 141: ......
Page 192: ...DETAILED SECTION DESCRIPTIONS...
Page 193: ......
Page 269: ......
Page 270: ...AUTO REVERSE DOCUMENT FEEDER B379...
Page 271: ......
Page 300: ...DOCUMENT FEEDER B387...
Page 301: ......
Page 323: ......
Page 324: ...PAPER TRAY UNIT B384...
Page 325: ......
Page 344: ...PAPER TRAY UNIT B385...
Page 345: ......
Page 361: ......
Page 362: ...SPECIFICATIONS...
Page 363: ......
Page 373: ...B120 RLA only...
Page 374: ......
Page 378: ......
Page 379: ...FAX UNIT B404...
Page 380: ......
Page 382: ......
Page 383: ...INSTALLATION...
Page 384: ......
Page 392: ......
Page 393: ...PREVENTIVE MAINTENANCE...
Page 394: ......
Page 396: ......
Page 397: ...REMOVAL AND REPLACEMENT...
Page 398: ......
Page 402: ......
Page 403: ...TROUBLESHOOTING...
Page 404: ......
Page 416: ...SERVICE TABLES...
Page 417: ......
Page 489: ......
Page 490: ...DETAILED SECTION DESCRIPTIONS...
Page 491: ......
Page 497: ......
Page 498: ...SPECIFICATIONS...
Page 499: ......
Page 510: ...FIRMWARE HISTORY...
Page 511: ......