Ricoh B230 Service Manual

 
SM 4-1 B230/B237 
Trouble 
shooting 
4. TROUBLESHOOTING 
4.1  PROCESS CONTROL ERROR CONDITIONS 
4.1.1  DEVELOPER INITIALIZATION RESULT 
SP-3-014-001 (Developer Initialization Result) 
No. Result Description Possible Causes Action 
1 Successfully 
completed Developer 
initialization is 
successfully 
completed. -  
2 Forced 
termination Developer 
initialization 
was forcibly 
terminated. A cover was opened 
or the main switch 
was turned off during 
the initialization. When done in SP mode, do 
the...

 
B230/B237 4-2  SM 
No. Result Description Possible Causes Action 
4.3V and 
Vcnt is less 
than 4.7V 
when Vcnt is 
Vt target ± 
0.2V. 
9  Vcnt error 3 Vcnt is less 
than 4.7V. 1.  Make sure that the heat seal on the 
development unit is not removed 
2. Defective TD sensor 
3.  Vt target settings are not correct. 
4.  Toner density error 
 
ƒ  The machine starts developer initialization after you set “Enable” in SP3-902-005, 
006, 007, or 008. Developer initialization automatically resumes when you open...

 
SM 4-3 B230/B237 
Trouble 
shooting 
No. Result Description Possible Causes Action 
development unit. 
ƒ Replace the IOB 
board. 
Vt minimum error: 
ƒ Replace the 
development unit. 
ƒ Replace the IOB 
board. 
53 ID sensor 
coefficient (K5) 
detection error Not enough data 
can be sampled. - Solid image is not 
sufficient density: 
ƒ  Retry the process 
control. 
ƒ Replace the ID 
sensors. 
ƒ Replace the IOB 
board. 
Solid image is O.K. 
ƒ Replace the ID 
sensors. 
ƒ Replace the IOB 
board. 
ID sensor...

 
B230/B237 4-4  SM 
No. Result Description Possible Causes Action 
displayed. 
55 Gamma error: 
Maximum  Gamma is out of 
range. 5.0 < 
Gamma 1. ID sensor 
pattern density is 
too high. 
2. Hardware 
defective. Same as 53 
56 Gamma error: 
Minimum Gamma is out of 
range.  
Gamma < 0.15 1. ID sensor 
pattern density is 
too low. 
2. Hardware 
defective. Same as 53 
ƒ Replace the toner 
supply pump unit. 
57 Vk error: 
Maximum Vk is out of range. 
150 < Vk 1. ID sensor 
pattern density is 
too low. 
2....

 
SM 4-5 B230/B237 
Trouble 
shooting 
Vsg Adjustment Result 
SP3-325-001 to -010 (Vsg Adjustment Result) 
No. Result Description Possible Causes Action 
1 O.K Vsg adjustment 
is correctly done.- - 
2 ID sensor 
adjustment 
error Vsg cannot be 
adjusted within 
4.0 ± 0.5V. 1.  Dirty ID sensor 
(toner, dust, or 
foreign material) 
2.  Dirty transfer belt 
3. Scratched image 
transfer belt 
4.  Defective ID sensor
5. Poor connection 
6. Defective IOB ƒ  Clean the ID 
sensor.  
ƒ  Check the belt 
cleaning....

 
B230/B237 4-6  SM 
 
4.1.3 LINE POSITION ADJUSTMENT RESULT 
SP2-194-010 to -012 (Line Position Adjustment Result: M, C, Y) 
This SP shows the number as a line position adjustment result on the LCD. It shows which 
color has an error (M, Y or C). 
No. Result Description Note 
0  Not done  Line position adjustment has not been done.  - 
1 Completed 
successfully Line position adjustment has correctly been 
done, - 
2 Cannot detect 
patterns ID sensors have not detected the patterns for 
line position...

 
SM 4-7 B230/B237 
Trouble 
shooting 
4.2  SCANNER TEST MODE 
4.2.1  VPU TEST MODE 
Output the VPU test pattern with SP4-907-001 to make sure the scanner VPU control 
operates correctly. The VPU test pattern prints out after you have set the SP mode settings 
and pressed the start key. 
ƒ  The CCD on the SBU board may be defective if the copy is abnormal and the VPU test 
pattern is normal. 
ƒ  The following can be the cause if the copy is normal and the VPU test pattern is 
abnormal: 
ƒ  The harness...

 
B230/B237 4-8  SM 
Errors may be caused by the following problems: 
1.  Short circuit on the signal lines 
ƒ  When the BICU board is installed, a pin or two on the ASIC is damaged. 
ƒ  Some conductive matter or object is trapped among the pins. 
ƒ Condensation 
2.  Destruction of circuit elements 
ƒ  Over current or a defective element breaks the circuit. 
3.  Abnormal power supply 
•The required voltage is not supplied to the devices. 
4. Overheat/overcooling 
ƒ  The environment is inappropriate for...

 
SM 4-9 B230/B237 
Trouble 
shooting 
4.3  SERVICE CALL CONDITIONS 
4.3.1 SUMMARY 
The ‘SC Table’ section shows the SC codes for controller errors and other errors. The latter 
(not controller errors) are put into four types. The type is determined by their reset 
procedures. The table shows the classification of the SC codes. 
 
 Key Definition Reset Procedure 
Controller 
errors CTL The error has occurred in the 
controller. See “Troubleshooting Procedure” 
in the table. 
A The error involves the...

 
B230/B237 4-10  SM 
code is detected. 
 
ƒ  If the problem is related electrical circuit boards, first disconnect then reconnect 
the connectors before you replace the PCBs. 
ƒ  If the problem concerns a motor lock, first check the mechanical load before you 
replace motors or sensors. 
SC Code Classification 
The table shows the classification of the SC codes: 
Class 1 Section SC CodeDetailed section 
100 -  Scanner 
1XX Scanning  
190 -  Unique for a specific model 
200 -  Polygon motor 
220 -...