Ricoh B230 Service Manual

							 
SM 4-121 B230/B237 
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 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 
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 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 the IOB and finisher is not supplied. 
FU4  10A/125V  10A/125V  24V power to the 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 
  
						

							 
SM 5-1 B230/B237 
Service 
Tables 
5. SERVICE  TABLES 
5.1 SERVICE PROGRAM MODE 
 
ƒ  Make sure that the data-in LED (
) is not on before you go into 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 service representatives only. If this mode 
is used by anyone other than service representatives 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 related to the controller functions 
ƒ  Scanner SP: SP modes related 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 you 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 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 restores the initial SP mode display. 
 Opens the copy window (copy mode) so you 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 will 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  
						

							 
SM 5-3 B230/B237 
Service 
Tables 
normal operation. 
 Press any Class 1 number to open a list of Class 2 SP modes. 
 Press to scroll the show to the previous or next group. 
 Press to scroll to the previous or next display in segments the size of the screen 
display (page). 
 Press to scroll the show the previous or next line (line by line). 
 Press to move the highlight on the left to the previous or next selection in the list. 
 
Switching Between SP Mode and Copy Mode for Test Printing 
1.  In the SP mode, select the test print. Then press Copy Window. 
2.  Use the copy window (copier mode), to select the appropriate settings (paper size, 
etc.) for the test print. 
3. Press Start 
  to start the test print. 
4.  Press SP Mode (highlighted) to return to the SP mode screen and repeat from step 1. 
Selecting the Program Number 
Program numbers have two or three levels. 
1.  Refer to the Service Tables to find the SP that you want to adjust before you begin. 
2.  Press the Group number on the left side SP Mode window that contains the SP that 
you want to adjust. 
3.  Use the scrolling buttons in the center of the SP mode window to show the SP number 
that you want to open. Then press that number to expand the list. 
4.  Use the center touch-panel buttons to scroll to the number and title of the item that you 
want to set and press it. The small entry box on the right activates and shows the 
default or the current settings.  
						

							 
B230/B237 5-4  SM 
 
 
ƒ  Refer to the Service Tables for the range of allowed settings. 
1.  Do this procedure to enter a setting: 
ƒ Press 
  to toggle between plus and minus and use the keypad to enter the 
appropriate number. The number you enter writes over the previous setting. 
ƒ Press 
  to enter the setting. (The value is not registered if you enter a number 
that is out of range.) 
ƒ  Press “Yes” when you are prompted to complete the selection. 
2.  If you need to perform a test print, press Copy Window to open the copy window and 
select the settings for the test print. Press Start 
  and then press SP Mode 
(highlighted) in the copy window to return to the SP mode display. 
3.  Press Exit two times to return to the copy window when you are finished. 
Exiting Service Mode 
Press the Exit key on the touch-panel. 
Service Mode Lock/Unlock 
At locations where the machine contains sensitive data, the customer engineer cannot 
operate the machine until the Administrator turns the service mode lock off. This function 
makes sure that work on the machine is always done with the permission of the 
Administrator. 
1.  If you cannot go into the SP mode, ask the Administrator to log in with the User Tool 
and then set “Service Mode Lock” to OFF after he or she logs in: 
User Tools > System Settings > Administrator Tools > Service Mode Lock > OFF 
ƒ  This unlocks the machine and lets you get access to all the SP codes. 
ƒ  The CE can service the machine and turn the machine off and on. It is not 
necessary to ask the Administrator to log in again each time the machine is turned 
on.