Ricoh Mp C3000 Service Manual

							 
TROUBLESHOOTING 
SECTION 4    TROUBLESHOOTING (SC CODES) REVISION HISTORY 
Page Date Added/Updated/New 
31 ~ 32  10/26/2007  SC Codes 
45 ~ 54  10/26/2007  SC Codes 
58 ~ 62  04/27/2011  Updated SC681 
64 ~ 65  03/29/2007  SC Codes 
70 ~ 71  03/29/2007  SC Codes 
118    02/04/2009  Jam Codes 
 
  
						

							 
SM 4-1 B230/B237/D042 
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 developer initialization 
again. Reinstall the engine 
main firmware if the result 
is the same. 
Turn the main switch off 
and on when done at unit 
replacement. 
6 Vt error 
Vt is more 
than 0.7V 
when Vcnt is 
4.3V. 1.  Make sure that the heat seal on the 
development unit is not removed. 
2. Defective TD sensor  
7  Vcnt error 1  Vcnt is less 
than 4.7V 
when Vcnt is 
Vt target ± 
0.2V. 1. Defective TD sensor  
2.  Vt target settings are not correct. 
3.  Toner density error 
8  Vcnt error 2 
Vt is more 
than 0.7V 
when Vcnt is 1.  Make sure that the heat seal on the 
development unit is not removed. 
2. Defective TD sensor  
						

							B230/B237/D042 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 initializat ion after you set “Enable” in SP3-902-005, 
006, 007, or 008. Developer initializati on automatically resumes when you open 
and close the front door or turn the main  switch off and on if an error other than 
Error 8 occurs. 
4.1.2 PROCESS CONTRO L SELF-CHECK RESULT 
SP3-012-001 to -010 (Process Control Self-check Result) 
No. Result Description Possible Causes Action 
11  Successfully 
completed  Process control 
self-check 
successfully 
completed. 
-  Check the Vsg 
adjustment. See the  
Vsg Adjustment 
Result following this 
table. 
41 Vt error 
Vt maximum or 
minimum error is 
detected. 1. Defective 
development 
unit   Vt maximum error and 
an image is faint: 
ƒ
 Replace the toner 
supply pump unit. 
Vt maximum error and 
an image is O.K: 
ƒ  Replace the  
						

							 
SM 4-3 B230/B237/D042 
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 is dirty: 
ƒ  Clean the ID 
sensors. 
ƒ Retry the process 
control. 
54  ID sensor 
coefficient (K5) 
maximum/ 
minimum error  When the K5 is 
more than the 
value of 
SP3-362-003 or 
less than the value 
of SP3-362-004, 
the error 54 is  1. ID sensor 
pattern density is 
too high or low. 
2.  ID sensor or  shutter is 
defective.  Same as 53  
						

							B230/B237/D042 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. Hardware  defective.  Same as 53 
58 
Vk error: 
Minimum  Vk is out of range. 
Vk < –150  1. ID sensor 
pattern density is 
too high. 
2. Background dirty
3. Hardware  defective  Same as 53 
59 
Sampling data 
error during 
gamma 
correction  Not enough data 
can be sampled 
during the gamma 
correction.  1. ID sensor 
pattern density is 
too high or low. 
2. Hardware  defective  Same as 53  
						

							 
SM 4-5 B230/B237/D042 
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. Clean or 
replace the 
transfer belt. 
ƒ Replace the image 
transfer belt. 
ƒ Replace the ID 
sensor. 
ƒ Check the 
connection. 
ƒ Replace the IOB 
board. 
3  ID sensor 
output error  ID sensor output 
is more than 
Voffset 
Threshold 
(SP3-324-004)  1.  Defective ID sensor
2. Poor connection 
3. Defective IOB 
ƒ
 Replace the ID 
sensor. 
ƒ Check the 
connection. 
ƒ Replace the IOB 
board. 
9  Vsg 
Adjustment 
error  Vsg adjustment 
has not been 
completed. 
Other cases ƒ
 Retry the 
SP3-321-010. 
  
						

							B230/B237/D042 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 adj ustment result on the LCD. It shows which 
color has an error (M, Y or C). 
No. Result Description Note 
0  Not done  Line position adjus tment 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 adjustment. 
See Note 
3 Fewer lines on 
the pattern than 
the target  The patterns, which ID 
sensors has detected, 
are not enough for line position adjustment.  See Note 
4 More lines on 
the pattern than 
the target    Not used in this machine.  - 
5 Out of the 
adjustment 
range  ID sensors has correctly detected the patterns 
for line position adjustment, but a shift of 
patterns is out of adjustable range. 
See Note 
6-9 Not used  - 
- 
 
ƒ  For details, see the Troubleshooting Gu ide - Line Position Adjustment section.  
						

							 
SM 4-7 B230/B237/D042 
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 caus e if the copy is normal and the VPU test pattern is 
abnormal: 
ƒ  The harness may not be correctly c onnected between the SBU and the BICU 
ƒ  The BICU (IPU) or SBU board may be defective. 
4.2.2  BICU (IPU) TEST MODE 
You can check the BICU (IPU) board with the SP mode menu, SP4-904-1 or -2. 
If no error is detected, the  test ends. Then the completion  code shows in the operation 
panel display. If an error is  detected, the test is interrupted. Then an error code shows. The 
table below lists the completion and error codes. 
SP4-904-1 Register Access 
There are 16 bit switches in this SP. Each  bit indicates each CPU as follows. The error 
result is displayed on the oper ation panel in decimal number. 
0: Normal, 1: Error   
Bit 0: TAURUS register 
Bit 1: ORION register 
Bit 2: LUPUS register  Bit 3 to 11: Not used 
Bit 12: Ri20 register 
Bit 13 to 15: Not used 
SP4-904-2 Image Path 
There are 16 bits switches in this SP. Each
 bit indicates each CPU path as follows. The 
error result is displayed on the operation panel in decimal number. 
0: Normal, 1: Error 
Bit 0: Image path from SBU to TAURUS 
Bit 1: Image path from TAURUS to ORION 
Bit 2: Image path from ORION to TAURUS 
Bit 3: Image path from TAURUS to LUPUS  Bit 4 to 11: Not used 
Bit 12: Image path from LUPUS to Ri20 
Bit 13: Image path from Ri20 to GAVD 
Bit 14 and 15: Not used 
  
						

							B230/B237/D042 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 obje ct 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 inappropriat e for the board (the scanner unit). 
5. Static electricity  ƒ  Static electricity of a high  voltage occurs during the test. 
6. Others  ƒ  The scanner and BICU are  incorrectly connected. 
When you have completed a check, turn the  main switch off and on before you do another 
check. When you have completed all necessary  checks, turn the main switch off and on.