Ricoh B230 Service Manual

 
SM 3-53 B230/B237 
Replacement 
Adjustment 
 
13.  Image transfer belt [J] 
When reinstalling the image transfer belt 
ƒ  Clean all rollers with dry cloth before installing the image transfer belt. 
 
ƒ  Make sure that the tape [A] inside the front or rear edge of the image transfer belt 
catches the rim [B] of the tension roller or image transfer belt drive roller. 
 
ƒ  Two tapes (width [C]: about 5 mm) are attached inside the front and rear edge 
of the image transfer belt. 
  

 
B230/B237 3-54  SM 
ƒ  This belt must be installed the correct way around. When you reinstall the image 
transfer belt unit, install it with the painted number [D] on the belt at the rear side of the 
unit. 
 
ƒ  Put Lubricant Powder (B132 9700) on the surface of the image transfer belt [A], while 
you turn the drive gear [B] at a constant speed, as shown. (The straight arrow in the 
picture shows belt movement direction.) Lubricant powder prevents the image transfer 
cleaning blade from turning up....

 
SM 3-55 B230/B237 
Replacement 
Adjustment 
3.9 PAPER TRANSFER 
3.9.1  PAPER TRANSFER ROLLER UNIT 
If you will install a new paper transfer unit, then set SP 3902-016 to 1. 
 
ƒ  If you do this, then the machine will reset the PM counter for the paper transfer unit 
automatically, after you turn the power on again. 
 
1.  Open the right door. 
2.  Release the two locks [A]. 
3.  Paper transfer roller unit [B] 
3.9.2  PAPER TRANSFER UNIT 
If you will install a new paper transfer unit, then set SP...

 
B230/B237 3-56  SM 
 
2.  Open the right door. 
3.  Remove the clip ring [A]. 
4.  Move the vertical transport unit to the left side with lever Z [B]. 
 
5.  Remove the pin [C], and then remove the harness cover [D]. 
6.  You do not need to remove the pin bushing [E] from the harness cover. 
 
7.  Disconnect the connector [F] and release the clamp [G].  

 
SM 3-57 B230/B237 
Replacement 
Adjustment 
 
8.  Remove the bushing [H] (
 x 1). 
 
9.  Slide up the paper transfer unit [I], and then remove it. 
3.9.3  ID SENSOR BOARD 
 
1.  K PCU (
 PCU) 
2.  Rear cover (
 Rear Cover)  

 
B230/B237 3-58  SM 
3.  Right rear cover (  Right Rear Cover) 
4. Duplex unit (
 Duplex Unit) 
5. Fusing unit (
 Fusing Unit) 
6.  Image transfer belt unit (
  Image Transfer Belt Unit) 
7.  ID sensor unit [A] (
 x 2,  x 2,  x 1) 
8.  ID sensor board [B] (
 x 6) 
Cleaning for ID sensors 
ID sensors require a cleaning procedure every 320K. Do the following steps for ID sensor 
cleaning. 
 
1.  K PCU (
 PCU) 
2. Fusing unit (
 Fusing Unit) 
3.  Image transfer belt unit (
  Image Transfer Belt Unit) 
4....

 
SM 3-59 B230/B237 
Replacement 
Adjustment 
  

 
B230/B237 3-60  SM 
3.10 DRIVE UNIT 
 
The drawing above shows the drive unit layout. 
 
1. Fusing/paper exit motor 
2. ITB drive motor 
3. Paper transfer contact motor 
4. Registration motor 
5. Paper feed motor 
6. Paper feed clutch – Tray 2 7. Paper feed clutch – Tray 1 
8. Drum/Development drive motor-K 
9. Development drive motor-CMY 
10. Toner transport motor 
11. Image transfer belt contact motor 
12. Drum drive motor-CMY 
 
There are some motors and clutches, which are not shown in the above...

 
SM 3-61 B230/B237 
Replacement 
Adjustment 
3.10.1  DRIVE UNIT FAN 
 
1.  Rear cover (
 Rear Cover) 
2.  Right rear cover (
  Right Rear Cover) 
3.  High voltage supply board bracket (
  High Voltage Supply Board Bracket) 
4.  Remove the drive unit fan [A] (
 x 1,   x 1, hook x 2) 
When installing the drive unit fan 
 
Make sure that the drive unit fan is installed with its decal facing to the right side. 
3.10.2 GEAR UNIT 
 
ƒ  Do not remove the drum motor-MCY from the gear unit. It is not easy in the...

 
B230/B237 3-62  SM 
 
5.  Release the four hooks of the duct from the frame. 
6.  Remove the drive unit fan duct [A] (
 x 1,  x 1,  x 1). 
7.  PSU bracket (
 PSU) 
8.  IOB bracket (
 IOB) 
9.  Drum/development motor-K (
 Drum/Development Motor-K) 
10.  Image transfer belt contact motor(
  Image Transfer Belt Contact Motor) 
11.  Toner transport motor (
  Toner Transport Motor) 
12.  Open the front door and right door. 
13.  Open the drum positioning plate. 
14.  Pull the image transfer belt unit a...