Ricoh B230 Service Manual

 
SM 3-43 B230/B237 
Replacement 
Adjustment 
 
7.  Remove the toner pump unit [D] (
 x 2) 
 
Make sure that a sheet of paper is attached to the frame of the rear side and covers the 
four gears. The picture on the left shows a sheet of paper that is correctly set, but the 
picture on the right shows a sheet of paper that is not correctly set. This sheet of paper 
prevents toner and screws from falling into the laser optics housing unit through 
cutouts. 
 
8.  Slowly remove the toner supply tube [E]...

 
B230/B237 3-44  SM 
tube right and left.   
9.  Turn up the openings of the toner pump unit and toner supply tube just after 
removing the tube. 
 
ƒ  If not, the toner may scatter away and fall down.   
 
10.  Put the toner pump unit on the sheet of paper, which has been put in step 4, with 
its opening [F] up. 
 
11.  Keep the opening [G] of the toner supply tube up, and then clip the opening of 
the toner supply. 
When you install the new toner pump unit 
Before installing the new toner pump unit,...

 
SM 3-45 B230/B237 
Replacement 
Adjustment 
 
1.  Put a sheet of paper (A3/DLT) inside the machine. 
2.  Turn up the opening of the toner supply tube, and then remove the object that 
was used to clip the opening of the toner supply tube. 
3.  Insert the opening of the toner pump unit [A] into the opening of the toner 
supply tube [B] as far as possible. 
 
4.  Connect the harness [C] to the connector of the machine. 
 
ƒ  On the above picture, the magnified picture of the connector shows the 
easiest...

 
B230/B237 3-46  SM 
ƒ  Avoid touching these spring terminals [D]. 
 
6.  Pass the harness of the toner pump unit behind the hook [E], while pressing at 
[F].  
7.  Secure the toner supply tube with the holder [G], lifting up the edge of the holder 
very gently.   
 
ƒ  Be careful when you lift the edge of the holder, because the holder is easily 
broken. 
 
8.  Insert the toner pump unit [H] into the rear frame of the machine (
 x 2).  

 
SM 3-47 B230/B237 
Replacement 
Adjustment 
3.7.6  TONER END SENSOR 
 
1.  Rear cover (
 Rear Cover) 
2.  Controller box (
 Controller Box) 
3.  Toner end sensor [A] (
  x 1, 2 hooks each)  

 
B230/B237 3-48  SM 
3.8 IMAGE TRANSFER 
3.8.1  IMAGE TRANSFER BELT UNIT 
 
1.  Open the right door. 
2.  Open the front door   
3.  Open the drum positioning plate. (
 PCU) 
4.  Turn the image transfer belt unit lock lever [A] counterclockwise. 
5.  Pull out the image transfer belt unit [B] halfway. 
 
6.  Grasp the handles [C], and then pull out the image transfer belt unit fully.  

 
SM 3-49 B230/B237 
Replacement 
Adjustment 
3.8.2 IMAGE TRANSFER BELT CLEANING UNIT 
 
1.  If you will install a new belt cleaning unit, then set SP 3902-015 to 1. 
 
ƒ  If you do this, then the machine will reset the PM counter for the belt cleaning 
unit automatically, after you turn the power on again. 
Do not use SP3902-015 or 013 if you replace the complete ITB unit. 
2.  Turn off the main power switch. 
3.  Open the right door. 
4.  Open the front door   
5.  Open the drum positioning plate. (...

 
B230/B237 3-50  SM 
3.8.3  IMAGE TRANSFER BELT 
 
1.  Image transfer belt cleaning unit (
  Image Transfer Belt Cleaning Unit) 
2.  Image transfer belt unit (
 PCU) 
3.  Turn the image transfer unit contact lever [A] counterclockwise (as seen from 
the rear). 
4.  Gear [B] (hook x 1) 
5.  Turn the gear cover [C] clockwise (as seen from the rear) (
  x 1) [D]. 
 
6.  Image transfer belt unit top cover [D] (
 x 6). 
[D] 

 
SM 3-51 B230/B237 
Replacement 
Adjustment 
 
7.  Three stays [E] (
 x 6) 
 
8.  Guide plate [F] (as seen from the right side of the machine) (
 x 2) 
 
9.  Remove the two screws and then rear hold bracket [G] (as seen from the rear).  

 
B230/B237 3-52  SM 
 
10.  Remove the two screws and then front hold bracket [H] (as seen from the front). 
 
11.  Put the front side of the image transfer belt unit on a corner of the table or a box 
as shown. 
 
12.  Pull the tension roller [I] as shown.