Ricoh B230 Service Manual

							 
SM 4-101 B230/B237 
Trouble 
shooting 
 
After Executing SP2-111-003 
Result (SP2-194) 
-007 -010, -011, 
-012 Test pattern check Possible cause/Countermeasure 
White image, 
Abnormal image, Low 
density ƒ  Defective laser optics housing unit 
shutter 
ƒ  Defective image processing unit 
ƒ  Low density of test pattern 
ƒ Defective BICU 
1.  Replace the shutter motor. 
2.  Replace the high voltage power 
supply unit. 
3.  Do the forced process control 
(SP3-011-001) or supply some 
toner (SP3-015-xxx). 
4. Replace the BICU. 
Result:  
2 or 3 
(Line pattern 
detection 
failure) 
Normal image, but   
with color registration 
errors ƒ  Defective ID sensor shutter 
ƒ  Defective ID sensor 
ƒ Defective BICU 
1.  Replace the ID sensor shutter 
solenoid. 
2.  Replace the ID sensor. 
3. Replace the BICU.  
Result: 1 
One of 
results (-010, 
-011, -012): 
5 
(Out of 
adjustable 
range) The main scan 
registrations of M, C, 
Y are shifted by more 
than ± 15 mm from 
the main scan 
registration of Bk. ƒ  Defective laser optics housing unit 
ƒ Defective BICU 
1.  Replace the laser optics housing 
unit. 
2. Replace the BICU.  
						

							 
B230/B237 4-102  SM 
 
    The sub scan 
registrations of M, C, 
Y are shifted by more 
than ± 20 mm from 
the sub scan 
registration of Bk. ƒ  Defective image transfer belt 
ƒ  Defective drive units 
ƒ Defective BICU 
1.  Replace the image transfer belt. 
2.  Replace the drum motor. 
3. Replace the BICU.  
						

							 
SM 4-103 B230/B237 
Trouble 
shooting 
 
The main scan 
registration is shifted 
by more than ± 0.66 
mm, but only at the 
central area of the 
image on the output. ƒ  Defective ID sensor at center 
ƒ  Deformed center area on the image 
transfer belt   
ƒ Defective BICU 
1.  Replace the ID sensor. 
2.  Replace the image transfer belt. 
3. Replace the BICU. 
The skew for M, C, Y 
is more than ± 0.75 
mm from the main 
scan registration of 
Bk  ƒ Defective PCU 
ƒ  Defective laser optics housing unit 
ƒ Defective BICU 
1.  Reinstall or replace the PCU. 
2.  Replace the laser optics housing 
unit. 
3. Replace the BICU. 
  
Others ƒ  Skew correction upper limit error   
ƒ Defective BICU 
1.  Reset the skew correction value 
(see the note at the bottom of the 
table). 
2. Replace the BICU. 
Result: 0  -  -  Do SP2-111-001 or -002. 
 
ƒ  For details about how to reset the skew correction value, see Recovery procedure 
for SC285 and no replacement preparation of laser optics housing unit in “Laser 
Optics Housing Unit Replacement” (in the Replacement and Adjustment section  of 
the manual).  
						

							 
B230/B237 4-104  SM 
 
After Executing SP2-111-001 
Result (SP2-194) 
-007 -010, -011, 
-012 Test pattern check Possible cause/Countermeasure 
White image, 
Abnormal image,   
Low density ƒ  Defective laser optics housing unit 
shutter 
ƒ  Defective image processing unit 
ƒ  Low density of test pattern 
ƒ Defective BICU 
1.  Replace the shutter motor. 
2.  Replace the high voltage power 
supply unit. 
3.  Do the forced process control 
(SP3-011-001) or supply some 
toner (SP3-015-xxx).   
4. Replace the BICU. 
Result:  
2 or 3 
(Line pattern 
detection 
failure) 
Normal image, but   
with color registration 
errors ƒ  Defective ID sensor shutter 
ƒ  Defective ID sensor 
ƒ Defective BICU 
1.  Replace the ID sensor shutter 
solenoid. 
2.  Replace the ID sensor. 
3. Replace the BICU.  
Result: 
1 
Result: 5 
(Out of 
adjustable 
range) Low image density 
on the output ƒ Low pattern density 
1.  Do the forced process control 
(SP3-011-001) or supply some 
toner (SP3-015-xxx).    
						

							 
SM 4-105 B230/B237 
Trouble 
shooting 
 
The main scan 
registrations of M, C, 
Y are shifted by more 
than ± 1.4 mm from 
the main scan 
registration of Bk. ƒ  No defective component 
ƒ  Defective laser optics housing unit
ƒ Defective BICU 
1.  Do SP2-111-003 again. 
2.  Replace the laser optics housing 
unit. 
3. Replace the BICU. 
The sub scan 
registrations of M, C, 
Y are shifted by more 
than ± 1.4 mm from 
the sub scan 
registration of Bk. ƒ  No defective component 
ƒ  Defective image transfer belt 
ƒ  Defective drive units 
ƒ Defective BICU 
1.  Do SP2-111-003 again. 
2.  Replace the image transfer belt. 
3.  Replace the drum motor. 
4. Replace the BICU. 
The main scan 
registration is shifted 
by more than ± 0.66 
mm, but only at the 
central area of the 
image on the output. ƒ  Defective ID sensor at center 
ƒ  Deformed center area on the 
image transfer belt   
ƒ Defective BICU 
1.  Replace the ID sensor. 
2.  Replace the image transfer belt. 
3. Replace the BICU. 
The skew for M, C, Y 
is more than ± 0.75 
mm from the main 
scan registration of 
Bk. – at the end of 
the scan line? ƒ Defective PCU 
ƒ  Defective laser optics housing unit
ƒ Defective BICU 
1.  Reinstall or replace the PCU. 
2.  Replace the laser optics housing 
unit. 
3. Replace the BICU. 
  
Others ƒ  Skew correction upper limit error   
ƒ Defective BICU 
1.  Reset the skew correction value  
						

							 
B230/B237 4-106  SM 
(see the note at the bottom of the 
table). 
2. Replace the BICU. 
 
The main scan 
registration of Bk is 
shifted. ƒ  Abnormal SP setting value of 
main scan: Bk 
1.  Adjust the value with 
SP2-101-001.  
No color 
registration 
errors 
The main scan 
length of Bk is 
shifted. ƒ  Abnormal SP setting value of 
main scan length detection: Bk 
1.  Adjust the value with 
SP2-185-001. 
Low image density 
on the output ƒ Low pattern density 
1.  Do the forced process control 
(SP3-011-001) or supply some 
toner (SP3-015-xxx). 
Result: 
0 
Color 
registration 
errors The main scan 
registration is shifted, 
but only at the 
central area of the 
image on the output. ƒ  Defective ID sensor at center 
ƒ  Deformed center area on the 
image transfer belt   
ƒ Defective BICU 
1.  Replace the ID sensor. 
2.  Replace the image transfer belt. 
3. Replace the BICU.  
						

							 
SM 4-107 B230/B237 
Trouble 
shooting 
 
The main scan 
registrations of M, C, 
Y are shifted. ƒ  Defective laser optics housing unit
ƒ  Defective ID sensor 
ƒ Defective BICU 
ƒ Incorrect SP value 
1.  Replace the laser optics housing 
unit. 
2.  Replace the ID sensor. 
3. Replace the BICU. 
4.  Adjust the value with 
SP2-182-004 to -021. 
 
The sub scan 
registrations of M, C, 
Y are shifted. ƒ  Defective image transfer belt 
ƒ  Defective drive units 
ƒ  Defective ID sensor 
ƒ Defective BICU 
ƒ Incorrect SP value 
1.  Replace the image transfer belt. 
2.  Replace the ID sensor. 
3.  Replace the drum motor. 
4. Replace the BICU. 
5.  Adjust the value with 
SP2-182-022 to -039. 
 ƒ  
  
The skew of M, C, Y 
is different. ƒ Defective PCU 
ƒ  Defective laser optics housing unit
ƒ Defective IOB 
1.  Reinstall or replace the PCU. 
2.  Replace the laser optics housing 
unit. 
3. Replace the IOB. 
  
						

							 
B230/B237 4-108  SM 
 
 
ƒ  For details about how to reset the skew correction value, see Recovery procedure 
for SC285 and no replacement preparation of laser optics housing unit in “Laser 
Optics Housing Unit Replacement” (in the Replacement and Adjustment section  of 
the manual).  
						

							 
SM 4-109 B230/B237 
Trouble 
shooting 
4.6  JAM DETECTION 
4.6.1  PAPER JAM DISPLAY 
SP7-504 shows the paper jam history. 
 
CODE: indicates the jam code. 
SIZE: indicates the paper Size Code. 
Total: Indicates the total counter (SP7-502-001). 
DATE: indicates the date when the jam occurred. 
4.6.2  JAM CODES AND DISPLAY CODES 
Jam Code 
SP Display Description LCD 
Display 
7504 1  At Power On  Paper is not fed at power on.  A 
7504 3  Tray 1: ON  Paper is not fed from tray 1.  A 
7504 4  Tray 2: ON  Paper is not fed from tray 2.  Y 
7504 5  Tray 3: ON  Paper is not fed from tray 3 (LCT).  Y 
7504 6  Tray 4: ON  Paper is not fed from tray 4.  A 
7504 8  Bypass: ON  Paper is not fed from the by-pass tray.  Z 
7504 9  Duplex: ON  Paper is jammed at the duplex unit.  Z 
7504 11 Vertical Transport 1: 
ON Paper feed sensor 1 does not detect 
paper from tray 1. A 
7504 12 Vertical Transport 2: 
ON Paper feed sensor 2 does not detect 
paper from tray 2. A 
7504 13  Bank Transport 1 Vertical transport sensor 1 or relay 
sensor does not detect paper from tray 3 Y  
						

							 
B230/B237 4-110  SM 
Jam Code 
SP Display Description LCD 
Display 
(LCT). 
7504 17  Registration: ON Registration sensor does not detect 
paper. B 
7504 18  Fusing Entrance: ON Fusing entrance sensor does not detect 
paper. B 
7504 19  Fusing Exit: ON Fusing exit sensor does not detect 
paper. B 
7504 20  Paper Exit: ON  Paper exit sensor does not detect paper.  C 
7504 21  Relay Exit: ON Tray exit sensor (bridge unit) does not 
detect paper. D 
7504 22  Relay Transport: ON Relay sensor (bridge unit) does not 
detect paper. D 
7504 25  Duplex Exit: ON Duplex exit sensor does not detect 
paper. Z 
7504 26  Duplex Reverse: ON    Z 
7504 27  Duplex Entrance: ON Duplex entrance sensor does not detect 
paper. Z 
7504 28  1-Bin Exit Sensor 1-bin tray exit sensor does not detect 
paper. C 
7504 51  SEF Sensor 1  Paper feed sensor 1 does not turn off.  B 
7504 52  SEF Sensor 2  Paper feed sensor 2 does not turn off.  A 
7504 53  Bank SEF Sensor 1 Vertical transport sensor or relay sensor 
1 does not turn off. Y 
7504 54  Bank SEF Sensor 2 Vertical transport sensor 2 does not turn 
off. Y