SC TABLE
SM
4-27 B147/B149/B190
SC No.
Item
Definition
Possible Cause
Related
SCs
Troubleshooting Procedure
Type
SC
504-02
Tray 4 error (3
Tray Paper
Feed Unit)
When the main switch is
turned or when the tray is set
and if the upper limit is already
detected, the lift motor turns on
to lower the bottom plate until
the lift sensor goes off.
If the motor turns on for 7
seconds or more, the machine
asks the user to reset the tray.
If this condition occurs 3
consecutive times, this SC is
generated.
•
Defective tray lift
motor or connector
disconnection
•
Defective lift sensor
or connector
disconnection
1. Turn the main switch off and on.
2. Check the cable connections.
3. Check and/or replace the defective
component.
B
SC 530 Fusing fan
motor error
The BCU does not receive the
lock signal (CN210-B5) 5
seconds after turning on the
fusing fan.
•
Defective fusing fan
motor or connector
disconnection
•
Defective BCU
1. Turn the main switch off and on.
2. Check the connector and/or replace
the fusing fan motor.
3. Replace the BCU.
D
SC 541 Heating roller
thermistor error
The temperature measured by
the heating roller thermistor
does not reach 7 °C for ten
seconds.
•
Loose connection of
the heating roller
thermistor
•
Defective heating
roller thermistor
•
Defective BCU
1. Check if the heating roller thermistor
is firmly connected.
2. Replace the fusing unit.
3. Replace the BCU.
A
SC 542 Heating roller
warm-up error
After the main switch is turned
on or the cover is closed, the
heating roller temperature
does not reach the ready
temperature within 60 seconds
during fusing unit warm-up.
•
Heating roller fusing
lamp broken
•
Defective heating
roller thermistor
•
Defective BCU
1. Check if the heating roller thermistor
is firmly connected.
2. Replace the fusing unit.
3. Replace the BCU.
A
SC 543 Heating roller
fusing lamp
overheat
The detected fusing
temperature stays at 210°C or
more for five seconds.
•
Defective PSU
•
Defective BCU
1. Replace the PSU.
2. Replace the BCU.
A
Summary of Contents for B147
Page 1: ...B147 B149 B190 SERVICE MANUAL 001892MIUMIU RICOH GROUP COMPANIES...
Page 2: ......
Page 3: ...B147 B149 B190 SERVICE MANUAL RICOH GROUP COMPANIES...
Page 4: ......
Page 5: ...B147 B149 B190 SERVICE MANUAL 001892MIU...
Page 6: ......
Page 8: ......
Page 10: ......
Page 12: ......
Page 26: ......
Page 30: ......
Page 32: ......
Page 33: ...INSTALLATION...
Page 34: ......
Page 105: ...PREVENTIVE MAINTENANCE...
Page 106: ......
Page 112: ......
Page 113: ...REPLACEMENT AND ADJUSTMENT...
Page 114: ......
Page 201: ...TROUBLESHOOTING...
Page 202: ......
Page 287: ...SERVICE TABLES...
Page 288: ......
Page 456: ......
Page 457: ...DETAILED DESCRIPTIONS...
Page 458: ......
Page 589: ...SPECIFICATIONS...
Page 590: ......
Page 607: ...AUTO REVERSE DOCUMENT FEEDER B597...
Page 608: ......
Page 610: ......
Page 634: ......
Page 635: ...ONE TRAY PAPER FEED UNIT B601...
Page 636: ......
Page 638: ......
Page 647: ...TWO TRAY PAPER FEED UNIT B598...
Page 648: ......
Page 650: ......
Page 659: ...LARGE CAPACITY TRAY B600...
Page 660: ......
Page 662: ......
Page 680: ......
Page 681: ...TWO TRAY FINISHER B599...
Page 682: ......
Page 714: ......
Page 715: ...BOOKLET FINISHER B602...
Page 716: ......
Page 720: ......
Page 729: ...STAPLER UNIT SM 9 B602 Booklet Fin isher B602 13 Timing belt A 14 Gear B x 1 B602R920 WMF A B...
Page 791: ...FAX OPTION TYPE 2238 B603...
Page 792: ......
Page 902: ......
Page 903: ...INTERNET FAX IFAX...
Page 904: ......
Page 950: ......
Page 951: ...DataOverwriteSecurity Unit Type A B694 01 Type B B692 01...
Page 952: ......
Page 954: ......
Page 958: ......
Page 980: ...TECHNICAL SERVICE BULLETINS...
Page 1066: ...FIRMWARE HISTORY...