Ricoh B230 Service Manual

							 
SM 3-93 B230/B237 
Replacement 
Adjustment 
1.  Adjust the projection [B] of the left side fence bar (it must be centered).   
2.  Install the by-pass paper size detection switch so that the hole [A] in this switch 
faces the projection [B] of the left side fence bar. 
3.  Reassemble the copier. 
4.  Plug in and turn on the main power switch. 
5.  Check this switch operation with SP5803-071 (By-pass paper size < Input 
Check). 
- Display on the LCD - 
Paper Size Display Paper Size Display 
A3 SEF  10010000  B5 SEF  11100000 
B4 SEF  11010000  B6 SEF  00110000 
A4 SEF  11000000  A6 SEF  10110000 
 
3.12.7  BY-PASS PAPER FEED UNIT 
 
1.  Open the right door. 
2.  Remove the by-pass tray unit gear [A] (
  x 1) and bushing [B], at the rear of the 
tray. 
3.  Close the right door.  
						

							 
B230/B237 3-94  SM 
 
4.  Open the by-pass tray unit. 
5.  By-pass tray cover [C] (4 hooks) 
 
6.  By-pass paper feed unit [D] (
 x 1, x 2)  
						

							 
SM 3-95 B230/B237 
Replacement 
Adjustment 
3.13 DUPLEX UNIT 
3.13.1 DUPLEX UNIT 
 
1.  Rear cover (
 Rear Cover) 
2.  Right rear cover (
  Right Rear Cover) 
3.  Open the right door. 
4.  Duplex unit [A] (
 x 2,  x 1,  x 1) 
 
ƒ  When removing the duplex unit, pull it to the rear side. 
3.13.2 DUPLEX TRANSPORT MOTOR 
 
1.  Rear cover (
 Rear Cover) 
2.  Right rear cover (
  Right Rear Cover) 
3.  High voltage supply board bracket (
   High Voltage Supply Board Bracket ) 
4.  Duplex transport motor bracket [A] (
 x 3,  x 1)  
						

							 
B230/B237 3-96  SM 
 
5.  Duplex transport motor [B] (
  x 4, timing belt x 1)  
						

							 
SM 3-97 B230/B237 
Replacement 
Adjustment 
3.14 ELECTRICAL COMPONENTS 
3.14.1 CONTROLLER UNIT 
 
1.  Controller unit [A] (
 x 5) 
3.14.2  CONTROLLER BOX COVER 
 
1.  Rear cover (
 Rear Cover) 
2.  Loosen the eight screws. 
3.  Slide up the controller box cover [A], and then remove it.  
						

							 
B230/B237 3-98  SM 
3.14.3 CONTROLLER BOX 
 
1.  Rear cover (
 Rear Cover) 
2.  Controller box cover (
  Controller Box Cover) 
3.  Disconnect all the connectors on the BICU and release the clamps. (
 x 5,  x 
3) 
4.  Remove the ground cable (
  x 1) and one flat cable. 
 
ƒ  Make sure that the flat cable is removed. If not, the flat cable can be damaged. 
  
						

							 
SM 3-99 B230/B237 
Replacement 
Adjustment 
5.  Open the controller box [A] ( x 6). 
 
6.  Release all the clamps on the top and bottom of the controller box (top: 
 x 3, 
bottom: 
 x 5). 
 
7.  Hinge bracket [B] (
 x 1)  
 
8.  Controller box [C]  
						

							 
B230/B237 3-100  SM 
3.14.4 BICU 
 
1.  Rear cover (
 Rear Cover) 
2.  Controller box cover (
  Controller Box Cover) 
3.  Mother board bracket [A] (
 x 4) 
4.  BICU [B] (
 x 5,   x 10, one flat cable) 
When installing the new BICU 
Remove the NVRAM from the old BICU. Then install it on the new BICU after you replace 
the BICU. Replace the NVRAM (
  NVRAM Replacement Procedure) if the NVRAM on 
the old BICU is defective. 
 
ƒ  Make sure you print out the SMC reports (“SP Mode Data” and “Logging Data”) 
before you replace the NVRAM. 
 
ƒ  Keep NVRAMs away from any objects that can cause static electricity. Static 
electricity can damage NVRAM data. 
ƒ  Make sure the NVRAM is correctly installed on the BICU. Insert the NVRAM in the 
NVRAM slot with the half-moon [C] pointing to the left. 
ƒ  Make sure that the DIP-switch settings on the old BICU are the same for the new 
BICU when. Do not change the DIP switches on the BICU in the field.  
						

							 
SM 3-101 B230/B237 
Replacement 
Adjustment 
3.14.5 IOB 
 
1.  Rear cover (
 Rear Cover) 
2.  PSU bracket (
 RPSU) 
3.  IOB [A] (
 x 7, ALL s) 
4.  Open the controller box (
  Controller Box Cover) 
5.  IOB bracket [B] (
 x 5,  x 2) 
3.14.6 PSU 
 
1.  Rear cover (
 Rear Cover) 
2.  Loosen the seven screws. 
3.  Slide the PSU box cover [A] to the left side and then remove it.  
						

							 
B230/B237 3-102  SM 
 
4.  PSU [B] (
 x 7, All s,  x 3) 
 
5.  PSU bracket [C] (
 x 4,  x 10) 
3.14.7  SIO (SCANNER IN/OUT) BOARD 
 
1.  Rear cover (
 Rear Cover) 
2.  Remove the screw of the SBU harness [A] (
 x 2).