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Ricoh B230 Service Manual

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SM 4-21 B230/B237 
Trouble 
shooting 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
FGATE ON error: Bk 
The PFGATE ON signal does not assert within 5 seconds after 
processing the image in normal job or MUSIC for start position [K]. 
ƒ Defective ASIC (Lupus) 
ƒ  Poor connection between controller and BICU. 
ƒ Defective BICU 
230 D 
1.  Check the connection between the controller board and the BICU. 
2. Replace the BICU. 
3. Replace the controller board. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
FGATE OFF error: Bk 
ƒ  The PFGATE ON signal still asserts within 5 seconds after 
processing the image in normal job or MUSIC for end position [K]. 
ƒ  The PFGATE ON signal still asserts when the next job starts. 
231 D 
See SC 230 for troubleshooting details. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
FGATE ON error: Y 
The PFGATE ON signal does not assert within 5 seconds after 
processing the image in normal job or MUSIC for start position [Y]. 232 D 
See SC 230 for troubleshooting details.
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B230/B237 4-22  SM 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
FGATE OFF error: Y 
ƒ  The PFGATE ON signal still asserts within 5 seconds after 
processing the image in normal job or MUSIC for end position [Y]. 
ƒ  The PFGATE ON signal still asserts when the next job starts. 
233 D 
See SC 230 for troubleshooting details. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
FGATE ON error: M 
The PFGATE ON signal does not assert within 5 seconds after 
processing the image in normal job or MUSIC for start position [M]. 234 D 
See SC 230 for troubleshooting details. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
FGATE OFF error: M 
ƒ  The PFGATE ON signal still asserts within 5 seconds after 
processing the image in normal job or MUSIC for end position [M]. 
ƒ  The PFGATE ON signal still asserts when the next job starts. 
235 D 
See SC 230 for troubleshooting details. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
FGATE ON error: C 
The PFGATE ON signal does not assert within 5 seconds after 
processing the image in normal job or MUSIC for start position [C]. 236 D 
See SC 230 for troubleshooting details.
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SM 4-23 B230/B237 
Trouble 
shooting 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
FGATE OFF error: C 
ƒ  The PFGATE ON signal still asserts within 5 seconds after 
processing the image in normal job or MUSIC for end position [C]. 
ƒ  The PFGATE ON signal still asserts when the next job starts. 
237 D 
See SC 230 for troubleshooting details. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
240  C  LD error: Bk 
241 C LD error: Y 
242  C  LD error: M 
243  C  LD error: C 
  The BICU detects LDB error a few times consecutively when LDB 
unit turns on after LDB initialization. 
  ƒ Worn-out LD 
ƒ  Disconnected or broken harness of the LD 
   1.  Replace the harness of the LD. 
2.  Replace the laser optics housing unit. 
3. Replace the BICU.
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B230/B237 4-24  SM 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
Line position adjustment (MUSIC) error 
Line position adjustment fails four consecutive times. 
ƒ  Pattern sampling error ( insufficient image density ) 
ƒ  Defective ID sensors for the line position adjustment 
ƒ  Defective image transfer belt unit 
ƒ Defective PCU(s) 
ƒ  Defective laser optics housing unit 
285 D 
1.  Do the recovery procedure for SC285 (see Laser Optics Housing 
Unit in Replacement & Adjustment). 
2.  Check and reinstall the image transfer belt unit and PCUs. 
3.  Check if each toner bottle has enough toner. 
4.  Replace the ID sensor. 
5.  Replace the image transfer belt unit. 
6. Replace the PCU(s). 
7.  Replace the laser optics housing unit.
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SM 4-25 B230/B237 
Trouble 
shooting 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
Shutter sensor time over error: Close 
The shutter close sensor does not detect ON for 2000msec after the 
shutter motor turns on. 
ƒ  Defective shutter close sensor 
ƒ  Disconnected or broken harness 
ƒ  Defective shutter motor 
ƒ Defective shutter 
ƒ  Shutter motor overload 
ƒ Defective IOB 
290 D 
1.  Check or replace the harness. 
2.  Replace the shutter on the laser optics housing unit. 
3.  Replace the shutter motor. 
4. Replace the shutter close sensor. 
5. Replace the IOB. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
Shutter overrun error 1: Close 
The shutter close sensor loses the ON signal after the shutter was 
closed. 
ƒ Defective motor 
ƒ  Change of load to shutter motor 
291 C 
1.  Replace the shutter on the laser optics housing unit.
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B230/B237 4-26  SM 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
Shutter overrun error 2: Close 
The shutter close sensor detects ON after SC 291 has occurred. 
ƒ Defective motor 
ƒ  Change of load to shutter motor 292 D 
1.  Replace the shutter on the laser optics housing unit.
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SM 4-27 B230/B237 
Trouble 
shooting 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
Shutter sensor time over error: Open 
The shutter open sensor does not detect ON for 2000msec after the 
shutter motor turns on.   
ƒ  Defective shutter close sensor 
ƒ  Disconnected or broken harness 
ƒ  Defective shutter motor 
ƒ Defective shutter 
ƒ  Shutter motor overload 
ƒ Defective IOB 
293 D 
1.  Check or replace the harness. 
2.  Replace the shutter on the laser optics housing unit. 
3.  Replace the shutter motor. 
4. Replace the shutter close sensor. 
5. Replace the IOB. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
Shutter overrun error 1: Open 
The shutter open sensor loses the ON signal after the shutter was 
closed. 
ƒ Defective motor 
ƒ  Change of load to shutter motor 
294 C 
1.  Replace the shutter on the laser optics housing unit.
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B230/B237 4-28  SM 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
Shutter overrun error 2: Open 
The shutter open sensor detects ON after SC 291 has occurred. 
ƒ Defective motor 
ƒ  Change of load to shutter motor 295 D 
1.  Replace the shutter on the laser optics housing unit. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
Shutter open/close sensor error 
Both shutter open sensor and close sensor detect ON at the same 
time. 
ƒ  Broken harness(es) of the shutter open/close sensors 
296 D 
1.  Replace the shutter on the laser optics housing unit.
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SM 4-29 B230/B237 
Trouble 
shooting 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
300  D  AC charge output error [K] 
301  D  AC charge output error [M] 
302  D  AC charge output error [C] 
303  D  AC charge output error [Y] 
  The measured voltage is not proper when BICU measures the 
charge output for each color. 
  ƒ  Disconnected or broken high voltage cable 
ƒ  Defective or not installed PCU 
ƒ  Defective high voltage power supply 
   1.  Check or replace the connectors. 
2.  Replace the PCU for black. 
3.  Replace the high voltage power supply. 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
Color development motor error 
The motor LOCK signal is not detected for more than two seconds 
while the motor START signal is on. 
ƒ  Color development motor slip due to an increase in the torque 325 D 
1.  Adjust the torque properly by replacing or cleaning the 
development unit. 
2.  Replace the color development motor if the load torque is normal.
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B230/B237 4-30  SM 
 
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) 
360  D  TD sensor (Vt high) error 1: K 
361  D  TD sensor (Vt high) error 1: M 
362  D  TD sensor (Vt high) error 1: C 
363  D  TD sensor (Vt high) error 1: Y 
  ƒ  The Vt value of the black, magenta, cyan, or yellow TD sensor 
exceeds the specified value (default: 4.7V) with SP3020-002 
for twenty counts. 
ƒ  The [Vt - Vtref] value of the black, magenta, cyan, or yellow TD 
sensor exceeds the specified value (default: 5.0V) with 
SP3020-001. 
  ƒ  Black, magenta, cyan, or yellow TD sensor disconnected 
ƒ  Harness between TD sensor and PCU defective 
ƒ Defective TD sensor. 
   1.  Check the black, magenta, cyan, or yellow TD sensor 
connector and harness between the TD sensor and PCU for 
damage. 
2.  Check the drawer connector. 
3. Replace the defective PCU.
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