Ricoh Mp C3000 Service Manual

							 
SM 4-119 B230/B237/D042 
Trouble 
shooting 
4.7 ELECTRICAL COMPONENT DEFECTS 
4.7.1 SENSORS  
 
ƒ  The CN numbers in the following table ar e the connector numbers on the BICU. 
 
No. Sensor Name/ 
Sensor Board Name ActiveCN ConditionSymptom 
Open  Open Cover is 
displayed 
SW01 Right Cover Open 
Switch  L CN211/35 
Shorted Right cover open 
cannot be detected. 
S01 ID Sensor  A  CN213  Open/ 
Shorted SC400 
Open  Jam A (Jam8, 17) 
S02 Registration Sensor L  CN212/2 
Shorted Jam A, B (Jam1) 
S03 Drum Gear Position 
Sensor-K  H CN212/5 Open/ 
Shorted SC380 
S04 Drum Gear Position 
Sensor-CMY  H CN212/8 Open/ 
Shorted SC380 
Open SC296 
S05 Shutter Positioning 
Sensor - Open  H CN214/26 
Shorted SC293 
Open SC296 
S06 Shutter Positioning 
Sensor - Close  H CN214/29 
Shorted SC290 
Open Toner end cannot be 
detected. S07 
S08 
S09 
S10 Toner End Sensor - Y 
Toner End Sensor - C 
Toner End Sensor - 
M 
L CN232/A16
CN232/B1 
CN232/B4 
CN232/B7 
Shorted Toner end is detected 
when there is enough  
						

							B230/B237/D042 4-120 SM 
No. Sensor Name/ 
Sensor Board Name ActiveCN ConditionSymptom 
Toner End Sensor - K toner. 
S11 Image Transfer Belt 
Rotation Sensor  H/L CN233/15 Open/ 
Shorted SC443 
Open  Jam A (Jam3, 11) 
S12  Paper Feed Sensor 1  L  CN281/2 
Shorted Jam A, B (Jam1) 
Open Paper end is not 
detected when there is 
no paper in the paper 
tray. 
S13 
S16 
Paper End   
Sensor 1, 2 
L CN281/5, 
14 
Shorted Paper end is detected 
when there is paper in 
the paper tray. 
S14 
S17 
Paper Lift Sensor 1, 2  H  CN281/8, 
17 Open/ 
Shorted 
SC501, SC502 
Open  Jam A (Jam4, 12) 
S15  Paper Feed Sensor 2  L  CN281/11 
Shorted Jam A, B (Jam1) 
S18 
S19 Tray 1 Paper Height 
Sensor 1, 2 
L CN282/2, 5Open/ 
Shorted Remaining paper 
volume on the LCD is 
wrong.  
Open 
Tray 1 is not detected 
when tray 1 is set. 
SW02  Tray 1 Set Switch  L  CN282/17 
Shorted Tray 1 is detected when 
tray 1 is not set. 
S22 By-pass Paper Size 
Sensor  L CN283/A1, 
A2, A4, A5  Open/ 
Shorted 
Paper size error 
S23 By-pass Paper  L  CN283/A7 
Open  Paper on the by-pass  
						

							 
SM 4-121 B230/B237/D042 
Trouble 
shooting 
No. Sensor Name/ 
Sensor Board Name ActiveCN ConditionSymptom 
tray is not detected 
when paper is set. 
Detection Sensor 
Shorted Paper on the by-pass 
tray is detected when 
paper is not set. 
Open  Jam C (Jam 18) 
S24 
Fusing Entrance 
Sensor  L CN283/B6 
Shorted  Jam C (Jam 1) 
Open  Jam Z (Jam 27) 
S25 Duplex Entrance 
Sensor  L CN283/B9 
Shorted  Jam Z (Jam 1) 
Open  Jam Z (Jam 25) 
S26  Duplex Exit Sensor  L  CN283/B12 Shorted  Jam Z (Jam 1) 
S27  TD Sensor - K  A  CN217/7 Open/ 
Shorted SC372 
S28  TD Sensor - C  A  CN217/15  Open/ 
Shorted SC374 
S29  TD Sensor - Y  A  CN217/23  Open/ 
Shorted SC375 
S30  TD Sensor - M  A  CN217/31  Open/ 
Shorted SC373 
Open  Jam C (Jam 19) 
S31 Fusing Exit Sensor L  CN253/2 
Shorted  Jam C (Jam 1) 
Open Waste toner near full 
indicated when it is not 
near full. 
S32 Waste Toner Sensor H  CN251/A2 
Shorted  Waste toner near full  
						

							B230/B237/D042 4-122 SM 
No. Sensor Name/ 
Sensor Board Name ActiveCN ConditionSymptom 
cannot be detected 
when the waste toner 
bottle is nearly full. 
Open Waste toner bottle is 
not detected when the 
waste toner bottle is 
set. 
SW03 
Waste Toner Bottle 
Set Switch  L CN251/A4 
Shorted Waste toner bottle is 
detected when the 
waste toner bottle is 
set. 
S33 
Tray 2 Paper Size 
Switch  L CN251/B8, 
B9, B10, 
B12  Open/ 
Shorted 
Paper size error 
S34 Temperature/ 
Humidity Sensor  A CN286/1, 3Open/ 
Shorted SC498 
Printed image has 
some problems such as 
rough image, dirty 
background, weak 
image or poor fusing. 
S35 Thermopile   A  CN286/8 
Open/ 
Shorted SC541 
TH1 Thermistor  
- Heating Roller  A CN257/9, 
11   Open/ 
Shorted 
SC551 
TH2 Thermistor  
- Pressure Roller  A CN257/30 Open/ 
Shorted SC561 
Open  Jam C (Jam 20) 
S36  Paper Exit Sensor  L  CN218/12 
Shorted  Jam C (Jam 1)  
						

							 
SM 4-123 B230/B237/D042 
Trouble 
shooting 
No. Sensor Name/ 
Sensor Board Name ActiveCN ConditionSymptom 
Open  Paper overflow 
message is not 
displayed when the 
paper overflow 
condition still remains.   
S37 
Paper Overflow 
Sensor  L CN218/15 
Shorted Paper overflow 
message is displayed 
when the paper 
overflow condition does 
not remain. 
S38 
Original Width 
Sensor 1  A CN313/2 Open/ 
Shorted Original paper size 
cannot be detected. 
S39 
Original Width 
Sensor 2  A CN313/5 
S40 Original Length 
Sensor 1  A CN313/8 
S41 Original Length 
Sensor 2  A CN313/11 
S42 Original Length 
Sensor 3  A CN313/14 Open/ 
Shorted 
Original paper size 
cannot be detected. 
Open SC120 
S43  Scanner HP Sensor  H  CN318/2 
Shorted SC121 
S44  Platen Cover Sensor  L  CN318/5 Open/ 
Shorted Platen cover open 
cannot be detected. 
(M6) 
Paper Transfer Roller 
HP Sensor  L CN214/19 Open/ 
Shorted SC452 
(M8) Image Transfer Belt L  CN215/2  Open/  SC442  
						

							B230/B237/D042 4-124 SM 
No. Sensor Name/ 
Sensor Board Name ActiveCN ConditionSymptom 
Contact Sensor Shorted 
4.7.2  BLOWN FUSE CONDITIONS 
Power Supply Unit 
Rating 
Fuse 
115V 220V - 240V
Symptom when turning on the main switch  
FU1 5A/250V 5A/250V 5VE power to  the SIO and IOB not supplied. 
FU2 5A/250V  5A/250V No response. (5V power to the BICU and 
controller is not supplied.) 
FU3  5A/250V  5A/250V  5V power to t
he IOB and finisher is not supplied. 
FU4  10A/125V  10A/125V  24V power to t he BICU finisher is not supplied. 
FU5  10A/125V 10A/125V 24V power to  the SIO and IOB not supplied. 
FU6  10A/125V 10A/125V 24VS1 power to the IOB not supplied. 
FU7  10A/125V 10A/125V 24VS2 power to the IOB not supplied. 
FU501 2A/250V 2A/250V PSU fan does not turn on. 
FU101 15A/125V  8A/250V No response. 
FU102 15A/125V  6.3A/250V  Fusing heater does not turn on. 
FU103 2A/250V 2A/250V Tray  heater does not turn on. 
  
						

							 
SERVICE TABLES 
SECTION 5    SERVICE TABLES (SP MODES) REVISION HISTORY 
Page Date Added/Updated/New 
29    03/30/2007  SP 2103 
226 ~ 227  07/27/2007  SP modes 
275 ~ 276  09/16/2009  SP5985 
278    02/19/2009  SP6009-002 
283 ~ 285  11/29/2006  SP6136 
395 ~ 429  04/07/2009  SP1001 
405    03/30/2007  Firmware Update 
 
  
						

							 
SM 5-1 B230/B237/D042 
Service 
Tables 
5. SERVICE TABLES 
5.1 SERVICE PROGRAM MODE 
 
ƒ  Make sure that the data-in LED (
) is not on before you go in to the SP mode. This 
LED indicates that some data is coming to  the machine. When the LED is on, wait 
for the copier to process the data. 
5.1.1 ENTERING AND EXITING  SERVICE PROGRAM MODE 
 
ƒ  The Service Program Mode is for use by se rvice representatives only. If this mode 
is used by anyone other than service repr esentatives for any reason, data might 
be deleted or settings might be changed. In such case, product quality cannot be 
guaranteed any more. 
Entering SP Mode 
1.  Press the Clear Mode key (). 
2.  Use keypad to enter 107 (
). 
3.  Hold down Clear/Stop (
) for 3 seconds at least. 
4.  Enter the Service Mode. 
Exiting SP Mode 
1.  Press Exit on the LCD twice  to return to the copy window. 
5.1.2  TYPES OF SP MODES 
ƒ  Copy SP: SP modes related to the engine functions 
ƒ  Printer SP: SP modes relat ed to the controller functions 
ƒ  Scanner SP: SP modes relat ed to the scanner functions 
ƒ  Fax SP: SP modes related to the fax functions 
Select one of the Service Program modes (Copy,  Printer, Scanner, or Fax) from the touch 
panel as shown in the diagram below after y ou access the SP mode. This section explains 
the functions of the Printer/Copy/Scanner SP  modes. Refer to the Fax service manual for 
the Fax SP modes.  
						

							 
B230/B237/D042 5-2 SM 
 
SP Mode Button Summary 
Here is a short summary of the touch-panel buttons. 
 
 
  Opens all SP groups and sublevels. 
 Closes all open groups and sublevels and re
stores the initial SP mode display. 
 Opens the copy window (copy mode) so y
ou can make test copies. Press SP Mode 
(highlighted) in the copy window to return to the SP mode screen, 
  Enter the SP code directly with the number
 keys if you know the SP number. Then 
press . (The required SP Mode number w ill be highlighted when pressing . If 
not, just press the required SP Mode number.) 
  Press two times to leave the SP mode and 
return to the copy window to resume