Ricoh B230 Service Manual

							 
SM 3-83 B230/B237 
Replacement 
Adjustment 
 
6.  Pressure roller thermostat [D] (
 x 2) 
7.  Pressure roller thermistor [E] (
 x 1) 
3.11.9 THERMOPILE 
 
1.  Open the right door. 
2.  Front right cover (
 Operation Panel)  
3. Fusing unit (
 Fusing Unit) 
4.  Remove the inverter tray [A]. 
5.  Release the hook [D] of the inner cover at the inside frame, and then remove the 
inner cover [B]. 
6.  Disconnect the connector [C].  
						

							 
B230/B237 3-84  SM 
 
7.  Paper exit unit [E] (
 x 2,  x 1) 
 
8. Thermopile [F] (
 x 2,  x 1) 
3.11.10 FUSING  GEAR AND ONE-WAY CLUTCH 
 
1. Fusing unit (
 Fusing Unit) 
2.  Fusing upper cover (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
3.  Release the pressure roller lamp cord [A] (
 x 1).  
						

							 
SM 3-85 B230/B237 
Replacement 
Adjustment 
4.  Rear side stay [B] ( x 2) 
 
5.  Release the idle gear [C] 
6.  Release the One-way clutch gear [D] (C-ring x 1) 
3.11.11 HEATING ROLLER BEARING AND INSULATING 
BUSHING 
 
1. Fusing unit (
 Fusing Unit) 
2.  Fusing upper cover (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
3.  Release the pressure roller lamp cord [A] (
 x 1). 
4.  Rear side stay [B] (
 x 2)  
						

							 
B230/B237 3-86  SM 
 
5.  Front side stay [C] (
 x 2) 
 
6.  Release the heating roller lamp cord [D] (
 x 4) 
7.  Remove the rear and front heating lamp brackets [E] (
  x 1 each) 
8.  Remove the heating roller lamp [F]. 
 
9.  Remove the rear and front heating roller bearings [G] and insulating bushings 
[H].  
						

							 
SM 3-87 B230/B237 
Replacement 
Adjustment 
3.11.12 PRESSURE ROLLER BEARING 
 
1.  Fusing upper cover (
  Fusing Belt, Pressure Roller, Fusing Lamps) 
2.  Front and rear side stay (
  Heating Roller Bearing and Insulating Bushing) 
3.  Pressure roller fusing lamp rear stay [A] 
 
4.  Pressure roller fusing lamp front stay [B] (
  x 1) and screw [C] for the pressure 
roller lamp terminal 
 
5.  Pressure roller bearing [D]  
						

							 
B230/B237 3-88  SM 
3.12 PAPER FEED 
3.12.1  PAPER FEED UNIT 
 
1.  Rear cover (
 Rear Cover) 
2.  Right rear cover (
  Right Rear Cover) 
3. Duplex unit (
 Duplex Unit) 
4.  Pull out tray 1 and tray 2. 
5.  Paper guide plate [A] (hook x 2) 
6.  Paper feed unit [B] (
 x 2,  x 1) 
3.12.2  PICK-UP, FEED AND SEPARATION ROLLERS 
Tray 1 and Tray 2 
 
1.  Paper feed unit (
  Paper Feed Unit) 
2.  Roller holder [A] (
 x 1) 
3.  Pick-up roller [B]   
4.  Feed roller [C]  
						

							 
SM 3-89 B230/B237 
Replacement 
Adjustment 
5.  Separation roller [D] and torque limiter [E] ( x 1) 
3.12.3  TRAY LIFT MOTOR 
 
1.  Rear cover (
 Rear Cover) 
2.  PSU bracket (
 PSU) 
3.  Open the controller box (
 Controller Box) 
4.  IOB bracket (
 IOB) 
5.  Tray lift motor 1 [A] (
 x 2,  x 3) 
6.  Tray lift motor 2 [B] (
 x 2,  x 3)  
						

							
 
B230/B237 3-90  SM 
3.12.4  VERTICAL TRANSPORT SENSOR, PAPER LIFT SENSOR AND PAPE R END SENSOR 
 
1.  Rear cover (
 Rear Cover) 
2.  Right rear cover (
  Right Rear Cover) 
3.  Paper feed unit (
  Paper Feed Unit) 
4.  Paper lift sensor [A] and paper end sensor [B] (hook, 
  x 1 each) 
5.  Paper end feeler [C] 
6.  Vertical transport sensor bracket [D] (
 x 1,  x 1) 
7.  Vertical transport sensor [E] (
  x 1, hook) 
⇒
Rev. 09/2006 
						

							 
SM 3-91 B230/B237 
Replacement 
Adjustment 
3.12.5 REGISTRATION SENSOR 
 
1.  Rear cover (
 Rear Cover) 
2.  Right rear cover (
  Right Rear Cover) 
3.  Paper feed unit (
  Paper Feed Unit) 
4.  Paper guide plate 1 [A] and 2 [B] (
  x 2 each)   
5.  Registration sensor [C] (
  x 1, hook)  
						

							 
B230/B237 3-92  SM 
3.12.6  BY-PASS PAPER SIZE DETECTION SWITCH 
 
1.  Open the by-pass tray [A]. 
2.  By-pass tray cover [B] (4 hooks) 
 
3.  Close the by-pass tray. 
4.  By-pass paper size detection switch [C] (
 x 1) 
When reinstalling this switch