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)....

 
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...

 
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...

 
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...

 
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...

 
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...

 
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...

 
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)...