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ELECTRICAL COMPONENT DEFECTS
B039/B040/B043
4-8
SM
4.2 ELECTRICAL COMPONENT DEFECTS
4.2.1 SENSORS
Component
CN
Condition
Symptom
Open
The Paper Jam message will appear whenever
a copy is made (paper hasn't reached the
sensor).
Registration
312-2
(IOB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
Open
The Paper Jam message will appear whenever
a copy is made except for 1st and by-pass tray
feeding.
Upper Relay
312-5
(IOB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
Open
The Paper End indicator lights when the 1st
paper tray is selected, even if there is paper in
the tray.
Upper Paper End
314-2
(IOB)
Shorted
The Paper End indicator does not light when
the 1st paper tray is selected, even if there is no
paper in the tray. The Paper Jam message will
appear whenever a copy is made from the 1st
paper tray.
Open
The Paper Jam message will appear whenever
a copy is made from an optional paper tray unit.
Lower Vertical
Transport
316-2
(IOB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
Open
The Paper End indicator lights when the 2nd
paper tray is selected, even if there is paper in
the tray (B040/B043 models only).
Lower Paper End
317-6
(IOB)
Shorted
The Paper End indicator does not light when
the 2nd paper tray is selected, even if there is
no paper in the tray. The Paper Jam message
will appear whenever a copy is made from the
2nd paper tray (B040/B043 models only).
Open
By-pass Paper
Size
311-
1,2,4,5
(IOB)
Shorted
The CPU misdetects or is not able to detect the
size of the paper set in the bypass tray, causing
possible misfeeds when feeding from this tray.
Open
The Paper End indicator lights when the bypass
tray is selected, even if there is paper in the
tray.
By-pass Paper
End
311-7
(IOB)
Shorted
The Paper End indicator does not light when
the bypass tray is selected, even if there is no
paper in the tray. The Paper Jam message will
appear whenever a copy is made from the
bypass tray.
Open
The Paper Jam message will appear whenever
a copy is made (paper hasn't reached the
sensor).
Exit
331-2
(IOB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
Open
Toner Density
325-3
(IOB)
Shorted
SC390 is displayed.
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: ......